WO2021012155A1

WO2021012155A1 - Drive module of resonant circuit llc

Info

Publication number: WO2021012155A1
Application number: PCT/CN2019/097124
Authority: WO
Inventors: 刘晓红; 刘鹏飞; 吴壬华
Original assignee: 深圳欣锐科技股份有限公司
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2021-01-28
Also published as: CN111527685B; CN111527685A

Abstract

Disclosed is a drive module of a resonant circuit LLC. The drive module comprises: a periodic signal input port, a dead zone signal input port, a signal delay input port, a signal processing module, and eight drive signal output ports. The eight drive signal output ports comprise four primary output ports and four secondary output ports; the signal processing module is used for processing a periodic signal and a dead zone signal to generate four primary switch transistor drive signals, and outputting same by means of the four primary output ports, and is further used for processing the periodic signal, the dead zone signal, and a phase difference signal to generate four secondary switch transistor drive signals, and outputting same by means of the four secondary output ports. The implementation of embodiments of the present application can broaden the application range of MATLAB in the field of simulation.

Description

Drive module for resonance circuit LLC

Technical field

This application relates to the technical field of electronic circuits, and in particular to a drive module of a resonance circuit LLC.

Background technique

The current resonance circuit LLC has been widely used because of its advantages such as reducing the switching loss of the power supply and improving the efficiency and power density of the power converter by controlling the switching frequency. At the same time, the current SIMULINK model in MATLAB can be maturely applied to pulse width modulation PWM fixed frequency simulation. However, due to the lack of a dedicated LLC drive module in the LLC frequency conversion simulation of the resonance circuit, it has not been widely used.

Summary of the invention

The embodiment of the application provides a drive module of the resonance circuit LLC. The drive module of the resonance circuit LLC can provide a pulse width modulation (PWM) drive signal for a specific circuit, which realizes the frequency conversion of the resonance circuit LLC in MATLAB The application of simulation solves the simulation limitation of MATLAB in the field of frequency conversion and broadens the application scope of MATLAB in the field of simulation.

In the first aspect, an embodiment of the present application provides a driving module for a resonance circuit LLC, which includes a periodic signal input port, a dead zone signal input port, a signal delay input port, a signal processing module, and eight driving signal output ports;

The eight drive signal output ports include four primary output ports and four secondary output ports;

The periodic signal input port is used to input a periodic signal, the dead zone signal input port is used to input a dead zone signal; the signal processing module is used to process the periodic signal and the dead zone signal to generate four primary edges Switching tube driving signals, and outputting four primary side switching tube driving signals through the four primary side output ports;

The signal delay input port is used to input a phase difference signal, and the signal processing module is also used to process the periodic signal, the dead zone signal, and the phase difference signal to generate four secondary switch tube drive signals, and The four secondary side switch tube drive signals are output through the four secondary side output ports.

In a possible example, the signal processing module includes a first signal processing module and a second signal processing module;

The first signal processing module is connected to the second signal processing module, the periodic signal input port, the dead zone signal input port, and the four primary output ports;

The second signal processing module is connected to the signal delay input port and the four secondary side output ports.

In a possible example, the four primary output ports include a first output port, a second output port, a third output port, and a fourth output port. The first output port and the fourth output port output The driving signals of the second output port and the third output port are the same;

The first signal processing module includes a first circuit and a second circuit; the first circuit is used to provide a driving signal output through the first output port and the fourth output port, and the second circuit is used to Provide driving signals output through the second output port and the third output port.

In a possible example, the first circuit includes a sawtooth wave generation module, a first amplitude positioning module, a first adder-subtractor, a second adder-subtractor, a first constant module, a second constant module, and a first condition A selection switch, a second condition selection switch, a first sign module, a first amplitude limiting module and a first multiplication operation module;

The input terminal of the sawtooth wave generating module is connected to the periodic signal input port, and the output terminal of the sawtooth wave generating module is connected to the negative input terminal of the first adder-subtractor and the second input of the first condition selection switch Terminal, the third input terminal of the first condition selection switch, and the second input terminal of the second condition selection switch; the first amplitude positioning module is connected to the positive input terminal of the first add-subtractor; The output terminal of the first adder-subtractor is connected to the first input terminal of the first condition selection switch;

The first constant module is connected to the first input terminal of the second condition selection switch, and the second constant module is connected to the third input terminal of the second condition selection switch;

The output terminal of the first condition selection switch is connected to the positive input terminal of the second adder-subtractor, the negative input terminal of the second adder-subtractor is connected to the dead zone signal input port, and the second adder-subtractor The output terminal of the first symbol module is connected to the input terminal of the first symbol module, the output terminal of the first symbol module is connected to the input terminal of the first amplitude limiting module, and the output terminal of the first amplitude limiting module is connected to the first The input terminal of the multiplication operation module, the input terminal of the first multiplication operation module is also connected to the output terminal of the second condition selection switch;

The output terminal of the first multiplication operation module is connected to the first output port and the fourth output port.

In a possible example, the second circuit includes a third adder-subtractor, a second amplitude positioning module, a second sign module, a second amplitude limiting module, a logic negation module, and a second multiplication operation module;

The first negative input terminal of the third adder-subtractor is connected to the output terminal of the first condition selection switch, the second negative input terminal of the third adder-subtractor is connected to the dead zone signal input port, and the first The positive input terminal of the three adder-subtractor is connected to the second amplitude positioning module;

The output terminal of the third adder-subtractor is connected to the input terminal of the second symbol module, the output terminal of the second symbol module is connected to the input terminal of the second amplitude limiting module, and the second amplitude limiting module The output terminal is connected to the input terminal of the second multiplication operation module;

The input terminal of the logic inversion module is connected to the output terminal of the second condition selection switch, and the output terminal of the logic inversion module is connected to the input terminal of the second multiplication operation module; The output terminal is connected to the second output port and the third output port.

In a possible example, the four secondary side output ports include a fifth output port, a sixth output port, a seventh output port, and an eighth output port, and the fifth output port and the eighth output port output The driving signals of the sixth output port and the seventh output port are the same;

The second signal processing module includes a third circuit and a fourth circuit; the third circuit is used to provide drive signals output through the sixth output port and the seventh output port, and the fourth circuit is used to Provide driving signals output through the fifth output port and the eighth output port.

In a possible example, the third circuit includes a fourth adder-subtractor, a fifth adder-subtractor, a sixth adder-subtractor, a first adder, a third symbol module, a fourth symbol module, and a third limiter. Module, fourth limiting module and third multiplication operation module;

The input end of the first adder is connected to the dead zone signal port, the second amplitude positioning module and the signal delay input port, and the output end of the first adder is connected to the fourth adder-subtractor The positive input end of the fourth adder-subtractor is connected to the output end of the sawtooth wave generating module, and the output end of the fourth adder-subtractor is connected to the input end of the third sign module; The output terminal of the third symbol module is connected to the input terminal of the third amplitude limiting module; the output terminal of the third amplitude limiting module is connected to the input terminal of the third multiplication operation module;

The positive input end of the sixth adder-subtractor is connected to the first amplitude positioning module, the negative input end of the sixth adder-subtractor is connected to the signal delay input port, and the output end of the sixth adder-subtractor Connected to the positive input end of the fifth adder-subtractor; the negative input end of the fifth adder-subtractor is connected to the output end of the sawtooth wave generating module, and the output end of the fifth adder-subtractor is connected to the fourth An input terminal of the symbol module, the output terminal of the fourth symbol module is connected to the input terminal of the fourth amplitude limiting module, and the output terminal of the fourth amplitude limiting module is connected to the input terminal of the third multiplication operation module;

The output terminal of the third multiplication operation module is connected to the sixth output port and the seventh output port.

In a possible example, the fourth circuit includes a seventh adder-subtractor, an eighth adder-subtractor, a ninth adder-subtractor, a second adder, a fifth symbol module, a sixth symbol module, and a fifth limiter. Module, sixth limiting module and fourth multiplication operation module;

The positive input terminal of the second adder is connected to the dead zone signal input port and the signal delay input port, and the output terminal of the second adder is connected to the negative input terminal of the seventh adder-subtractor; The positive input terminal of the seventh adder-subtractor is connected to the output terminal of the sawtooth wave generating module, the output terminal of the seventh adder-subtractor is connected to the input terminal of the fifth symbol module; the output terminal of the fifth symbol module Connected to the input terminal of the fifth amplitude limiting module; the output terminal of the fifth amplitude limiting module connected to the input terminal of the fourth multiplication operation module;

The positive input end of the eighth add-subtractor is connected to the second amplitude positioning module, the negative input end of the eighth add-subtractor is connected to the signal delay input port, and the output end of the eighth add-subtractor Connected to the positive input end of the ninth adder-subtractor; the negative input end of the ninth adder-subtractor is connected to the output end of the sawtooth wave generating module, and the output end of the ninth adder-subtractor is connected to the sixth The input terminal of the symbol module; the output terminal of the sixth symbol module is connected to the input terminal of the sixth amplitude limiting module; the output terminal of the sixth amplitude limiting module is connected to the input terminal of the fourth multiplication operation module;

The output terminal of the fourth multiplication operation module is connected to the fifth output port and the eighth output port.

In a possible example, the sawtooth wave generation module includes a time signal module, a multiplication and division operation module, a third amplitude positioning module, a numerical remainder module, and a signal processing module;

The first multiplication input terminal of the multiplication and division operation module is connected to the time signal module, the second multiplication input terminal of the multiplication and division operation module is connected to the third amplitude positioning module, and the division input of the multiplication and division operation module is Terminal is connected to the periodic signal input port, the output terminal of the multiplication and division operation module is connected to the first input port of the numerical remainder module; the second input terminal of the numerical remainder module is connected to the third amplitude positioning Module; the output terminal of the numerical remainder module is connected to the input terminal of the signal processing module, and the output terminal of the signal processing module is connected to the output terminal of the sawtooth wave generating module.

In this application, the drive module of the resonance circuit LLC includes a periodic signal input port, a dead zone signal input port, a signal delay input port, a signal processing module and eight drive signal output ports; the eight drive signal output ports include four Two primary output ports and four secondary output ports; the periodic signal input port is used to input periodic signals, the dead zone signal input port is used to input dead zone signals; the signal processing module is used to process the periodic signals Signal and the dead zone signal to generate four primary side switch tube drive signals, the four primary side output ports are used to output four primary side switch tube drive signals; the signal delay input port is used to input phase Difference signal, the signal processing module is also used to process the period signal, the dead zone signal and the phase difference signal to generate four secondary side switch tube drive signals, and the four secondary side output ports are used to output Four of the secondary side switch tube drive signals. The LLC drive module can generate the primary side drive signal according to the periodic signal and the dead zone signal; at the same time, the delay signal can be added to the primary side drive signal, and the secondary side drive signal is generated after processing, so that the primary side drive signal and The secondary side drive signal meets the conditions of the synchronous rectification function in circuit applications, and there is no need to add an additional circuit for generating the secondary side drive signal, which improves the reliability of the synchronous rectification function. In addition, the LLC drive module in this application solves the simulation limitations in the field of MATLAB frequency conversion and broadens the application of MATLAB in the field of simulation.

These and other aspects of the application will be more concise and understandable in the description of the following embodiments.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the application or the background art, the following will briefly introduce the drawings involved in the embodiments of the application or the background art.

The following will briefly introduce the drawings involved in the embodiments of the present application.

FIG. 1 is a schematic structural diagram of a driving module of a resonance circuit LLC provided in an embodiment of the present application;

2 is a schematic diagram of the circuit structure of the first signal processing module in FIG. 1;

3 is a schematic diagram of the circuit structure of the second signal processing module in FIG. 1;

4 is a schematic diagram of the circuit structure of the sawtooth wave module T1 in FIG. 2;

Detailed ways

In order to enable those skilled in the art to better understand the solution of the application, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

Detailed descriptions are given below.

The terms "first", "second", "third" and "fourth" in the description and claims of the application and the drawings are used to distinguish different objects, rather than describing a specific order . In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.

Reference to "embodiments" herein means that a specific feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art clearly and implicitly understand that the embodiments described herein can be combined with other embodiments.

The driving module of the resonance circuit LLC provided by the embodiment of the application is suitable for the resonance circuit LLC DC/DC transformer, wherein the primary and secondary sides of the transformer are respectively connected to a single-phase full bridge circuit, and energy can flow in both directions. Frequency conversion drive, the secondary side switch tube works in the synchronous rectification state; when the energy flows in the reverse direction, the secondary side frequency conversion drive, the primary side switch tube works in the synchronous rectification state. The transformer includes PWM1, PWM2, PWM3, PWM4, PWM5, PWM6, PWM7 and PWM8, with a total of eight drive signal input ports. The driving module of the resonance circuit LLC provided in the present application can generate the pulse width modulation (PWM) driving signals required by the above eight driving signal input ports.

The drive module of the resonance circuit LLC includes a periodic signal input port, a dead zone signal input port, a signal delay input port, a signal processing module and eight drive signal output ports; the eight drive signal output ports include four primary outputs Port and four secondary output ports; the periodic signal input port is used to input periodic signals, the dead-zone signal input port is used to input dead-zone signals; the signal processing module is used to process the periodic signals and the The dead zone signal is used to generate four primary side switch tube drive signals, and output four primary side switch tube drive signals through the four primary side output ports; the signal delay input port is used to input a phase difference signal, so The signal processing module is also used to process the periodic signal, the dead zone signal and the phase difference signal to generate four secondary side switch tube drive signals, and output four secondary side output ports through the four secondary side output ports. Secondary side switch tube drive signal. The LLC drive module can generate the primary side drive signal according to the periodic signal and the dead zone signal; at the same time, the delay signal can be added to the primary side drive signal, and the secondary side drive signal is generated after processing, so that the primary side drive signal and The secondary side drive signal meets the conditions of the synchronous rectification function in circuit applications, and there is no need to add an additional circuit for generating the secondary side drive signal, which improves the reliability of the synchronous rectification function. In addition, the LLC drive module in this application solves the simulation limitations in the field of MATLAB frequency conversion and broadens the application of MATLAB in the field of simulation.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a driving module 100 of a resonance circuit LLC according to an embodiment of the present application, including a periodic signal input port I1, a dead zone signal input port I2, a signal delay input port I3, and a signal processing module 200 and eight drive signal output ports;

The eight drive signal output ports include four primary output ports O1, O2, O3, and O4, and four secondary output ports O5, O6, O7, and O8;

The periodic signal input port I1 is used to input a periodic signal, the dead zone signal input port I2 is used to input a dead zone signal; the signal processing module 200 is used to process the periodic signal and the dead zone signal to generate four Two primary side switch tube drive signals, and the four primary side output ports O1, O2, O3, and O4 are used to output four primary side switch tube drive signals;

The signal delay input port I3 is used to input a phase difference signal, and the signal processing module 200 is also used to process the periodic signal, the dead zone signal and the phase difference signal to generate four secondary side switch tube drive signals , The four secondary side output ports O5, O6, O7, and O8 are used to output four secondary side switch tube drive signals.

In a possible example, the signal processing module 200 includes a first signal processing module 210 and a second signal processing module 220;

The first signal processing module 210 is connected to the second signal processing module 220, the periodic signal input port I1, the dead zone signal input port I2, and the four primary output ports O1, O2, O3, and O4 ；

The second signal processing module 220 connects the signal delay input port I3 and the four secondary output ports O5, O6, O7, and O8.

It can be seen that in this example, both the primary side drive signal and the secondary side drive signal are generated based on the periodic signal input from the periodic signal input port I1 and the dead zone signal input from the dead zone signal input port I2, which improves the use of primary drive The reliability of the signal and the secondary side drive signal during synchronous rectification.

In a possible example, please refer to FIG. 2, which is a schematic circuit diagram of the first signal processing module 210 in FIG. 1. The four primary output ports include a first output port O1, a second output port O2, a third output port O3, and a fourth output port O4. The first output port O1 and the fourth output port O4 output The driving signals are the same, and the driving signals output by the second output port O2 and the third output port O3 are the same;

The first signal processing module 210 includes a first circuit 211 and a second circuit 212; the first circuit 211 is used to provide driving signals output through the first output port O1 and the fourth output port O4, so The second circuit 212 is used to provide a driving signal output through the second output port O2 and the third output port O3.

Among them, the driving signal output by the first output port O1 is the first driving signal, the second output port O2 is the second driving signal; the third output port O3 is the third driving signal, and the fourth output port O4 is output It is the fourth drive signal; the first drive signal and the fourth drive signal are the same, the second drive signal and the third drive signal are the same, and the first drive signal/fourth drive signal and the second drive signal/third drive signal are mutually exclusive Complementary drive signal between.

It can be seen that in this example, the first signal processing module 210 can process the input periodic signal and the dead zone signal to generate the required primary side driving signal.

In a possible example, as shown in FIG. 2, the first circuit 211 includes a sawtooth wave generating module T1, a first amplitude positioning module P1, a first adder-subtractor A1, a second adder-subtractor A2, a first Constant module C1, second constant module C2, first condition selection switch S1, second condition selection switch S2, first sign module B1, first limiter module D1, and first multiplication operation module M1;

The input terminal of the sawtooth wave generating module T1 is connected to the periodic signal input port I1, and the output terminal of the sawtooth wave generating module T1 is connected to the negative input terminal of the first adder-subtractor A1 and the first condition selection switch The second input terminal of S1, the third input terminal of the first condition selection switch S1, and the second input terminal of the second condition selection switch S2; the first amplitude positioning module P1 is connected to the first plus The positive input terminal of the subtractor A1; the output terminal of the first adder-subtractor A1 is connected to the first input terminal of the first condition selection switch S1;

The first constant module C1 is connected to the first input terminal of the second condition selection switch S2, and the second constant module C2 is connected to the third input terminal of the second condition selection switch S2;

The output terminal of the first condition selection switch S1 is connected to the positive input terminal of the second adder-subtractor A2, and the negative input terminal of the second adder-subtractor A2 is connected to the dead zone signal input port I2. The output terminal of the two adder-subtractor A2 is connected to the input terminal of the first symbol module B1, the output terminal of the first symbol module B1 is connected to the input terminal of the first amplitude limiting module D1, and the first amplitude limiting module The output terminal of D1 is connected to the input terminal of the first multiplication operation module M1, and the input terminal of the first multiplication operation module M1 is also connected to the output terminal of the second condition selection switch S2.

The output terminal of the first multiplication operation module M1 is connected to the first output port O1 and the fourth output port O4.

Among them, the sawtooth wave generating module T1 is used to generate a sawtooth wave according to the input periodic signal, and the period of the generated sawtooth wave is the same as the period of the input periodic signal, and the amplitude is constant at 4096. The amplitude positioning module is used to set the amplitude. No matter how the frequency of the input signal changes, the amplitude will be constant at the set value after processing by the amplitude positioning module; the setting of the first amplitude positioning module P1 The value is 4096, and the signal amplitude after processing by the first amplitude positioning module P1 is constant at 4096. The adder-subtractor can add and subtract the input signal. The signal input from the positive input terminal of the adder-subtractor takes the positive value of the input signal, and the signal input from the negative input terminal of the adder-subtractor takes the negative value of the input signal. The subtractor adds up the signals at all output ends and outputs them from the output ends. The value of the first constant block is constant at 0, and the value of the second constant block is constant at 1. The condition selection switch has three input ports. The middle port and the second input port are the condition judgment ports. The specific judgment conditions can be set in the module according to the specific conditions. When the conditions are met, the output port and the first input port and the conditions in the figure The uppermost input port in the selection switch is connected to output the signal output by the first input port; when the condition is not met, the output port is connected to the third input port and the lowermost input port in the condition selection switch in the figure is connected to output the third input port The input signal. When the input value of the input port of the symbol module is greater than 0, the output is 1, and when the input value is less than 0, the output is -1. The limiting module is used to limit the range of the output signal value. The multiplication operation is used to multiply the two input signals and output the result of the multiplication.

In a possible example, as shown in FIG. 2, the second circuit 212 includes a third adder-subtractor A3, a second amplitude positioning module P2, a second sign module B2, a second amplitude limiting module D2, and a logic fetching module. Anti-module N1 and second multiplication operation module M2;

The first negative input terminal of the third adder-subtractor A3 is connected to the output terminal of the first condition selection switch S1, and the second negative input terminal of the third adder-subtractor A3 is connected to the dead zone signal input port I2 , The positive input terminal of the third adder-subtractor A3 is connected to the second amplitude positioning module P2;

The output terminal of the third adder-subtractor A3 is connected to the input terminal of the second symbol module B2, the output terminal of the second symbol module B2 is connected to the input terminal of the second limiter module D2, and the second The output terminal of the amplitude limiting module D2 is connected to the input terminal of the second multiplication operation module M2;

The input terminal of the logic inversion module N1 is connected to the output terminal of the second condition selection switch S2, and the output terminal of the logic inversion module N1 is connected to the input terminal of the second multiplication operation module M2; the second The output terminal of the multiplication module M2 is connected to the second output port O2 and the third output port O3.

It can be seen that, in this example, the second circuit 212 can generate the second primary drive signal output by the second output port O2 and the third primary drive signal output by the third output port O3.

In a possible example, please refer to FIG. 3, which is a schematic circuit diagram of the second signal processing module 220 in FIG. 1. The four secondary output ports include a fifth output port O5, a sixth output port O6, a seventh output port O7, and an eighth output port O8. The fifth output port O5 and the eighth output port O8 output The driving signals are the same, and the driving signals output by the sixth output port O6 and the seventh output port O7 are the same;

The second signal processing module 220 includes a third circuit 221 and a fourth circuit 222; the third circuit 221 is used to provide driving signals output through the sixth output port O6 and the seventh output port O7, so The fourth circuit 222 is used to provide driving signals output through the fifth output port O5 and the eighth output port O8.

It can be seen that in this example, the second signal processing module 220 can generate four secondary side drive signals according to the signal processed by the first signal processing module 210 and the phase difference signal provided by the signal delay port I3; no additional hardware sampling circuit is required. ; Simplify the complexity of generating the secondary side drive signal; at the same time, use the same periodic signal and dead zone signal to generate the primary side drive signal and the secondary side drive signal, increasing the reliability of using the above-mentioned primary side drive signal and secondary side drive signal for rectification Sex; reduced production costs and saved material resources.

In a possible example, as shown in FIG. 3, the third circuit 221 includes a fourth adder-subtractor A4, a fifth adder-subtractor A5, a sixth adder-subtractor A6, a first adder F1, and a third symbol. Module B3, fourth symbol module B4, third limiter module D3, fourth limiter module D4 and third multiplication operation module M3;

The input end of the first adder F1 is connected to the dead zone signal port I2, the second amplitude positioning module P2 and the signal delay input port I3, and the output end of the first adder F1 is connected to the The negative input end of the fourth adder-subtractor A4; the positive input end of the fourth adder-subtractor A4 is connected to the output end of the sawtooth wave generating module T1, and the output end of the fourth adder-subtractor A4 is connected to the first The input terminal of the three-symbol module B3; the output terminal of the third symbol module B3 is connected to the input terminal of the third amplitude limiting module D3; the output terminal of the third amplitude limiting module D3 is connected to the third multiplication operation module The input terminal of M3;

The positive input end of the sixth adder-subtractor A6 is connected to the first amplitude positioning module P1, the negative input end of the sixth adder-subtractor A6 is connected to the signal delay input port I3, and the sixth adder-subtractor A6 The output terminal of the device A6 is connected to the positive input terminal of the fifth adder-subtractor A5; the negative input terminal of the fifth adder-subtractor A5 is connected to the output terminal of the sawtooth wave generating module T1, the fifth adder-subtractor A5 The output terminal of A5 is connected to the input terminal of the fourth symbol module B4, the output terminal of the fourth symbol module B4 is connected to the input terminal of the fourth amplitude limiting module D4, and the output terminal of the fourth amplitude limiting module D4 Connected to the input terminal of the third multiplication operation module M3;

The output terminal of the third multiplication operation module M3 is connected to the sixth output port O6 and the seventh output port O7.

Among them, the adder can add the signals input from all the input terminals and generate the added result.

It can be seen that, in this example, the third circuit 221 can generate the sixth secondary side drive signal output by the sixth output port O6 and the seventh secondary side drive signal output by the seventh output port O7.

In a possible example, as shown in FIG. 3, the fourth circuit 222 includes a seventh adder-subtractor A7, an eighth adder-subtractor A8, a ninth adder-subtractor A9, a second adder F2, and a fifth symbol. Module B5, sixth symbol module B6, fifth limiter module D5, sixth limiter module D6, and fourth multiplication operation module M4;

The positive input of the second adder F2 is connected to the dead zone signal input port I2 and the signal delay input port I3, and the output of the second adder F2 is connected to the negative of the seventh adder-subtractor A7. Input terminal; the positive input terminal of the seventh adder-subtractor A7 is connected to the output terminal of the sawtooth wave generating module T1, and the output terminal of the seventh adder-subtractor A7 is connected to the input terminal of the fifth symbol module B5; The output terminal of the fifth symbol module B5 is connected to the input terminal of the fifth amplitude limiting module D5; the output terminal of the fifth amplitude limiting module D5 is connected to the input terminal of the fourth multiplication operation module M4;

The positive input end of the eighth add-subtractor A8 is connected to the second amplitude positioning module P2, the negative input end of the eighth adder-subtractor A8 is connected to the signal delay input port I3, and the eighth add-subtractor A8 The output end of the ninth adder-subtractor A9 is connected to the positive input end of the ninth adder-subtractor A9; the negative input end of the ninth adder-subtractor A9 is connected to the output end of the sawtooth wave generating module T1. The output terminal of A9 is connected to the input terminal of the sixth symbol module B6; the output terminal of the sixth symbol module B6 is connected to the input terminal of the sixth amplitude limiting module D6; the output terminal of the sixth amplitude limiting module D6 Connected to the input terminal of the fourth multiplication operation module M4;

The output terminal of the fourth multiplication operation module M4 is connected to the fifth output port O5 and the eighth output port O8.

It can be seen that, in this example, the fourth circuit 222 can generate the fifth secondary side drive signal output by the fifth output port O5 and the eighth secondary side drive signal output by the eighth output port O8.

In a possible example, please refer to Figure 4. Figure 4 is a schematic diagram of the sawtooth wave module T1 in Figure 2. The sawtooth wave generation module T1 includes a time signal module K1, a multiplication and division operation module H1, and a third amplitude positioning module P3. Numerical remainder module R1 and signal processing module G1;

The first multiplication input terminal of the multiplication and division operation module H1 is connected to the time signal module K1, the second multiplication input terminal of the multiplication and division operation module H1 is connected to the third amplitude limiting module P3, and the multiplication and division operation The division input terminal of the module H1 is connected to the periodic signal input port I1, the output terminal of the multiplication and division operation module H1 is connected to the first input port of the numerical remainder module R1; the second input of the numerical remainder module R1 Terminal is connected to the third amplitude limiting module P3; the output terminal of the numerical remainder module R1 is connected to the input terminal of the signal processing module G1, and the output terminal of the signal processing module G1 is connected to the sawtooth wave generating module T1 The output terminal.

Among them, the time signal module can output the set constant time value or the time value that changes with time; the multiplication and division operation module can multiply and divide the input signal, and the specific operation step can be that the multiplication and division operation module inputs the multiplication input terminal After the signal is multiplied, it is divided by the input signal at the division input terminal to obtain the output signal at the output terminal. The numerical remainder module includes two input ports. The signal input from one input port is used as the dividend, the signal input from the other input port is used as the divisor, and the output port outputs the remainder after division. The signal processing module can output the above-mentioned input signal when the preset signal quality or the preset signal output condition is satisfied. The set amplitude of the third amplitude positioning module P3 is 4096. The amplitude of the carrier signal output by the sawtooth wave generating module T1 is constant at 4096, and the period is equal to the period of the input periodic signal.

It can be seen that in this example, the sawtooth wave generating module can generate the required carrier signal according to the periodic signal, and realize the frequency conversion control carrier signal.

It should be noted that for the foregoing application embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the described sequence of actions. Because according to this application, some steps can be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the above-mentioned units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical or other forms.

The units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

The embodiments of the application are described in detail above, and specific examples are used in this article to illustrate the principles and implementation of the application. The descriptions of the above embodiments are only used to help understand the application and its core ideas; at the same time, for the field According to the ideas of the application, the general technical personnel of, will have changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as a limitation of the application.

Claims

A drive module for a resonance circuit LLC, which is characterized in that it includes a periodic signal input port, a dead zone signal input port, a signal delay input port, a signal processing module and eight drive signal output ports; the eight drive signal output ports include Four primary output ports and four secondary output ports;

The periodic signal input port is used to input a periodic signal, the dead zone signal input port is used to input a dead zone signal; the signal processing module is used to process the periodic signal and the dead zone signal to generate four primary edges Switching tube driving signals, and outputting four primary side switching tube driving signals through the four primary side output ports;

The signal delay input port is used to input a phase difference signal, and the signal processing module is also used to process the periodic signal, the dead zone signal, and the phase difference signal to generate four secondary switch tube drive signals, and The four secondary side switch tube drive signals are output through the four secondary side output ports.
The driving module of the resonance circuit LLC according to claim 1, wherein the signal processing module comprises a first signal processing module and a second signal processing module;

The first signal processing module is connected to the second signal processing module, the periodic signal input port, the dead zone signal input port, and the four primary output ports;

The second signal processing module is connected to the signal delay input port and the four secondary side output ports.
The driving module of the resonance circuit LLC according to claim 2, wherein the four primary output ports include a first output port, a second output port, a third output port, and a fourth output port. An output port and the fourth output port output the same drive signal, and the second output port and the third output port output the same drive signal;

The first signal processing module includes a first circuit and a second circuit; the first circuit is used to provide a driving signal output through the first output port and the fourth output port, and the second circuit is used to Provide driving signals output through the second output port and the third output port.
The driving module of the resonance circuit LLC according to claim 3, wherein the first circuit comprises a sawtooth wave generating module, a first amplitude positioning module, a first adder-subtractor, a second adder-subtractor, a first Constant module, second constant module, first condition selection switch, second condition selection switch, first sign module, first limiter module, and first multiplication operation module;

The input terminal of the sawtooth wave generating module is connected to the periodic signal input port, and the output terminal of the sawtooth wave generating module is connected to the negative input terminal of the first adder-subtractor and the second input of the first condition selection switch Terminal, the third input terminal of the first condition selection switch and the second input terminal of the second condition selection switch; the first amplitude positioning module is connected to the positive input terminal of the first adder-subtractor; The output terminal of the first adder-subtractor is connected to the first input terminal of the first condition selection switch;

The first constant module is connected to the first input terminal of the second condition selection switch, and the second constant module is connected to the third input terminal of the second condition selection switch;

The output terminal of the first condition selection switch is connected to the positive input terminal of the second adder-subtractor, the negative input terminal of the second adder-subtractor is connected to the dead zone signal input port, and the second adder-subtractor The output terminal of the first symbol module is connected to the input terminal of the first symbol module, the output terminal of the first symbol module is connected to the input terminal of the first amplitude limiting module, and the output terminal of the first amplitude limiting module is connected to the first The input terminal of the multiplication operation module, the input terminal of the first multiplication operation module is also connected to the output terminal of the second condition selection switch;

The output terminal of the first multiplication operation module is connected to the first output port and the fourth output port.
The driving module of the resonance circuit LLC according to claim 4, wherein the second circuit includes a third adder-subtractor, a second amplitude positioning module, a second symbol module, a second amplitude limiting module, and a logic fetching module. Anti-module and second multiplication operation module;

The first negative input terminal of the third adder-subtractor is connected to the output terminal of the first condition selection switch, the second negative input terminal of the third adder-subtractor is connected to the dead zone signal input port, and the first The positive input terminal of the three adder-subtractor is connected to the second amplitude positioning module;

The output terminal of the third adder-subtractor is connected to the input terminal of the second symbol module, the output terminal of the second symbol module is connected to the input terminal of the second amplitude limiting module, and the second amplitude limiting module The output terminal is connected to the input terminal of the second multiplication operation module;

The input terminal of the logic inversion module is connected to the output terminal of the second condition selection switch, and the output terminal of the logic inversion module is connected to the input terminal of the second multiplication operation module; The output terminal is connected to the second output port and the third output port.
The driving module of the resonance circuit LLC according to claim 2, wherein the four secondary output ports include a fifth output port, a sixth output port, a seventh output port, and an eighth output port. The fifth output port and the eighth output port output the same drive signal, and the sixth output port and the seventh output port output the same drive signal;

The second signal processing module includes a third circuit and a fourth circuit; the third circuit is used to provide drive signals output through the sixth output port and the seventh output port, and the fourth circuit is used to Provide driving signals output through the fifth output port and the eighth output port.
The driving module of the resonance circuit LLC according to claim 6, wherein the third circuit includes a fourth adder-subtractor, a fifth adder-subtractor, a sixth adder-subtractor, a first adder, and a third symbol Module, fourth symbol module, third amplitude limiting module, fourth limiting module and third multiplication operation module;

The input end of the first adder is connected to the dead zone signal port, the second amplitude positioning module and the signal delay input port, and the output end of the first adder is connected to the fourth adder-subtractor The positive input end of the fourth adder-subtractor is connected to the output end of the sawtooth wave generating module, and the output end of the fourth adder-subtractor is connected to the input end of the third sign module; The output terminal of the third symbol module is connected to the input terminal of the third amplitude limiting module; the output terminal of the third amplitude limiting module is connected to the input terminal of the third multiplication operation module;

The positive input end of the sixth adder-subtractor is connected to the first amplitude positioning module, the negative input end of the sixth adder-subtractor is connected to the signal delay input port, and the output end of the sixth adder-subtractor Connected to the positive input end of the fifth adder-subtractor; the negative input end of the fifth adder-subtractor is connected to the output end of the sawtooth wave generating module, and the output end of the fifth adder-subtractor is connected to the fourth An input terminal of the symbol module, the output terminal of the fourth symbol module is connected to the input terminal of the fourth amplitude limiting module, and the output terminal of the fourth amplitude limiting module is connected to the input terminal of the third multiplication operation module;

The output terminal of the third multiplication operation module is connected to the sixth output port and the seventh output port.
The driving module of the resonance circuit LLC according to claim 7, wherein the fourth circuit includes a seventh adder-subtractor, an eighth adder-subtractor, a ninth adder-subtractor, a second adder, and a fifth symbol Module, sixth symbol module, fifth limiter module, sixth limiter module and fourth multiplication operation module;

The positive input terminal of the second adder is connected to the dead zone signal input port and the signal delay input port, and the output terminal of the second adder is connected to the negative input terminal of the seventh adder-subtractor; The positive input terminal of the seventh adder-subtractor is connected to the output terminal of the sawtooth wave generating module, the output terminal of the seventh adder-subtractor is connected to the input terminal of the fifth symbol module; the output terminal of the fifth symbol module Connected to the input terminal of the fifth amplitude limiting module; the output terminal of the fifth amplitude limiting module connected to the input terminal of the fourth multiplication operation module;

The positive input end of the eighth add-subtractor is connected to the second amplitude positioning module, the negative input end of the eighth add-subtractor is connected to the signal delay input port, and the output end of the eighth add-subtractor Connected to the positive input end of the ninth adder-subtractor; the negative input end of the ninth adder-subtractor is connected to the output end of the sawtooth wave generating module, and the output end of the ninth adder-subtractor is connected to the sixth The input terminal of the symbol module; the output terminal of the sixth symbol module is connected to the input terminal of the sixth amplitude limiting module; the output terminal of the sixth amplitude limiting module is connected to the input terminal of the fourth multiplication operation module;

The output terminal of the fourth multiplication operation module is connected to the fifth output port and the eighth output port.
The driving module of the resonance circuit LLC according to claim 4 or 5, wherein the sawtooth wave generation module includes a time signal module, a multiplication and division operation module, a third amplitude positioning module, a numerical remainder module, and signal processing Module

The first multiplication input terminal of the multiplication and division operation module is connected to the time signal module, the second multiplication input terminal of the multiplication and division operation module is connected to the third amplitude positioning module, and the division input of the multiplication and division operation module is Terminal is connected to the periodic signal input port, the output terminal of the multiplication and division operation module is connected to the first input port of the numerical remainder module; the second input terminal of the numerical remainder module is connected to the third amplitude positioning Module; the output terminal of the numerical remainder module is connected to the input terminal of the signal processing module, and the output terminal of the signal processing module is connected to the output terminal of the sawtooth wave generating module.