CN115016345B

CN115016345B - High-speed and high-efficiency turbofan controller and program refreshing method

Info

Publication number: CN115016345B
Application number: CN202210642302.3A
Authority: CN
Inventors: 张学锋
Original assignee: Xace Turbo Technologies Beijing Co ltd
Current assignee: Xace Turbo Technologies Beijing Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-04-07
Anticipated expiration: 2042-06-08
Also published as: CN115016345A

Abstract

The application relates to the technical field of electronics, in particular to a high-speed and high-efficiency turbofan controller and a program refreshing method. This high-speed high-efficient turbofan controller includes: the system comprises a direct-current power supply module, a remote monitoring module and at least three GaN device topology modules; the direct current power supply module is used for supplying power to the remote monitoring module and the GaN device topology module; the remote monitoring module is used for controlling the switching sequence state of the GaN device through the GaN driving circuit based on a motor driving application program in the remote monitoring module and refreshing the motor driving application program based on a program refreshing instruction; and the GaN device topology module is used for controlling the high-speed and high-efficiency turbine fan according to the switching sequence state of the GaN device. The noise of the controller can be reduced, the efficiency, the response speed, the power density and the service life of the controller are improved, and the convenience of after-sale analysis is high.

Description

High-speed and high-efficiency turbofan controller and program refreshing method

Technical Field

The application relates to the technical field of electronics, in particular to a high-speed and high-efficiency turbofan controller and a program refreshing method.

Background

The high-speed turbine fan needs a controller to drive when working. In the related art, the controller adopts a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) technology, the switching frequency is less than or equal to 20kHz, and the dead time is controlled in microsecond level. However, the output waveform harmonic of the controller is serious (THD is more than or equal to 8 percent), even the waveform is distorted, the eddy current loss of the motor is increased, and the temperature rise is higher, so that the controller has the disadvantages of large noise, low efficiency, low corresponding speed, low power density and short service life. In addition, the controller also has the problem of inconvenient after-sale and analysis.

Disclosure of Invention

The present application is directed to solving, at least in part, one of the technical problems in the related art.

Therefore, a first objective of the present application is to provide a high-speed and high-efficiency turbofan controller to solve the technical problems of high noise, low efficiency, low corresponding speed, low power density, short service life, and inconvenient after-sales and analysis of the controller.

A second objective of the present application is to provide a program refreshing method.

In order to achieve the above object, a high-speed and high-efficiency turbofan controller according to an embodiment of the first aspect of the present application includes: the GaN-based remote monitoring system comprises a direct-current power supply module, a remote monitoring module and at least three gallium nitride (GaN) device topology modules, wherein each GaN device topology module comprises two GaN devices and a GaN driving circuit, and the GaN devices are connected to the remote monitoring module through the GaN driving circuits; wherein, the first and the second end of the pipe are connected with each other,

the direct current power supply module is connected to the remote monitoring module and the GaN device topology module and used for supplying power to the remote monitoring module and the GaN device topology module;

the remote monitoring module is connected to the GaN device topology module and is used for controlling the switching sequence state of the GaN device through the GaN driving circuit based on a motor driving application program in the remote monitoring module and refreshing the motor driving application program based on a program refreshing instruction;

and the GaN device topology module is used for controlling the high-speed and high-efficiency turbine fan according to the switching sequence state of the GaN device.

Optionally, in an embodiment of the present application, the remote monitoring module includes a remote communication module and an MCU processor; wherein, the first and the second end of the pipe are connected with each other,

the remote communication module is connected to the direct-current power supply module and the MCU processor and is used for receiving a program refreshing instruction and sending the program refreshing instruction to the MCU processor;

the MCU processor is connected to the GaN device topology module and used for controlling the switch sequence state of the GaN device according to the motor driving application program and refreshing the motor driving application program based on the program refreshing instruction.

Optionally, in an embodiment of the present application, the remote monitoring module further includes a signal sampling module;

the signal sampling module is connected to the high-speed high-efficiency turbofan and the MCU processor and is used for sampling the running state of the high-speed high-efficiency turbofan;

the MCU processor is also used for monitoring the running state of the high-speed high-efficiency turbofan according to the sampling signal;

the remote communication module is also used for uploading the monitoring information to a remote database and an upper computer.

Optionally, in an embodiment of the present application, the dc power supply module includes: the device comprises a direct current converter, a direct current power supply, an electromagnetic interference EMI filter circuit and a high-frequency capacitor; wherein, the first and the second end of the pipe are connected with each other,

the DC power supply is connected to the EMI filter circuit, the EMI filter circuit is connected to the DC converter and the GaN device, and the DC converter is connected to the remote monitoring module and the GaN device topology module;

the EMI filter circuit is used for inhibiting conducted interference generated when the remote monitoring module and the GaN device topology module carry out circuit signal transmission or power output;

the positive electrode of the high-frequency capacitor is connected to the GaN device, and the negative electrode of the high-frequency capacitor is connected to the negative electrode of the direct-current power supply and used for reducing an EMI noise source of the GaN device topology module.

Optionally, in an embodiment of the present application, the GaN device topology module further includes a printed circuit board;

the GaN device and the GaN driving circuit are packaged in the printed circuit board, and the GaN device and the GaN driving circuit are connected in a stacked mode.

Optionally, in an embodiment of the present application, the GaN device and the electronic components included in the GaN driving circuit are mounted on the front surface of the printed circuit board;

the GaN device and the electronic component are connected in the printed circuit board through a wiring, the wiring does not pass through the lower part of the GaN device, and the wiring surrounding the GaN device has the wire length which is not higher than 1/3 of the perimeter of the GaN device;

the GaN device is in the front of printed circuit board passes through ground connection, set up the GND net in the ground connection, the GND net includes two at least via holes, the via hole is used for with the ground connection is connected to the copper foil at the printed circuit board back.

Optionally, in an embodiment of the present application, the dc power module includes a high-frequency capacitor, and the high-frequency capacitor is mounted on the printed circuit board at a power interface of the GaN device.

In summary, the high-speed and high-efficiency turbofan controller provided by the embodiment of the first aspect of the present application includes: the GaN device topology module comprises two GaN devices and a GaN driving circuit, and the GaN devices are connected to the remote monitoring module through the GaN driving circuit; the direct current power supply module is connected to the remote monitoring module and the GaN device topology module and used for supplying power to the remote monitoring module and the GaN device topology module; the remote monitoring module is connected to the GaN device topology module and is used for controlling the switching sequence state of the GaN device through the GaN driving circuit based on a motor driving application program in the remote monitoring module and refreshing the motor driving application program based on a program refreshing instruction; the GaN device topology module is used for controlling the high-speed high-efficiency turbofan according to the switch sequence state of the GaN device. According to the controller, the GaN device is adopted to replace the MOSFET, the switching frequency can be increased to 100kHz, the dead time can be controlled at a nanosecond level, the noise of the controller can be reduced, and the efficiency, the response speed, the power density and the service life of the controller are improved. The motor driving application program is refreshed through the remote monitoring module based on the program refreshing instruction, after-sale analysis can be conducted remotely, and convenience of after-sale analysis of the controller can be improved.

In order to achieve the above object, a program refreshing method provided in an embodiment of a second aspect of the present application includes:

receiving a program refreshing instruction, and entering a diagnostic programming mode according to the program refreshing instruction;

performing interactive handshake with an upper computer according to the diagnosis programming mode to establish a data transmission channel;

and carrying out data transmission through the data transmission channel, and carrying out program refreshing on the motor driving application program according to the received data.

Optionally, in an embodiment of the present application, the performing data transmission through the data transmission channel and performing program refresh on the motor driver application according to the received data includes:

judging whether the data is received completely based on the request and response data packets;

if the data reception is finished, verifying the data;

and if the data passes the verification, performing program refreshing on the motor drive application program according to the data passing the verification.

Optionally, in an embodiment of the present application, the performing a program refresh on the motor driver application according to the data that passes the verification includes:

analyzing the data passing the verification to extract a target motor driving application program;

erasing an initial motor driving application program, and writing the target motor driving application program to obtain a written target motor driving application program;

reading the written target motor driving application program, and judging whether the code of the read target motor driving application program is consistent with the extracted code of the target motor driving application program;

if so, the diagnostic programming mode is ended and reset.

In summary, in the program refreshing method provided in the embodiment of the second aspect of the present application, a program refreshing instruction is received, and a diagnostic programming mode is entered according to the program refreshing instruction; performing interactive handshake with an upper computer according to the diagnosis programming mode to establish a data transmission channel; and carrying out data transmission through the data transmission channel, and carrying out program refreshing on the motor driving application program according to the received data. This application is through carrying out mutual shaking hands with the host computer according to diagnosis programming mode, can provide long-range after-sales analysis service to high-speed high-efficient turbine fan controller, and then can improve the convenience of high-speed high-efficient turbine fan controller after-sales analysis.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a high-speed high-efficiency turbofan controller according to an embodiment of the present application;

fig. 2 is a schematic view illustrating an application design of a GaN device topology module according to an embodiment of the present application;

fig. 3 is a circuit diagram of an EMI filter circuit according to an embodiment of the present disclosure;

FIG. 4 is an electrical architecture diagram of a high speed high efficiency turbofan controller according to an embodiment of the present application;

fig. 5 is a flowchart of a first program refreshing method according to an embodiment of the present application;

fig. 6 is a flowchart of a second program refreshing method according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

The present application will be described in detail with reference to specific examples.

Fig. 1 is a schematic structural diagram of a high-speed and high-efficiency turbofan controller according to an embodiment of the present application.

As shown in fig. 1, an embodiment of the present application provides a high-speed and high-efficiency turbofan controller, including: the GaN-based remote monitoring system comprises a direct-current power supply module, a remote monitoring module and at least three gallium nitride (GaN) device topology modules, wherein each GaN device topology module comprises two GaN devices and a GaN driving circuit, and the GaN devices are connected to the remote monitoring module through the GaN driving circuits; wherein the content of the first and second substances,

the direct current power supply module is connected to the remote monitoring module and the GaN device topology module and is used for supplying power to the remote monitoring module and the GaN device topology module;

the remote monitoring module is connected to the GaN device topology module and used for controlling the switching sequence state of the GaN device through the GaN driving circuit based on a motor driving application program in the remote monitoring module and refreshing the motor driving application program based on a program refreshing instruction;

In some embodiments, fig. 2 is a schematic view of an application design of a GaN device topology module provided in the embodiments of the present application. As shown in fig. 2, the GaN device topology module includes a GaN device IC5, and a GaN driving circuit composed of resistors R26 and R29, capacitors C42, C43, C48, C30, C31, C32, C33, and C27. The first end of the IC5 is a VIN end, the second end of the IC5 is an HB end, the third end of the IC5 is an HS end, the fourth end of the IC5 is a HI end, the fifth end of the IC5 is an LI end, the sixth end of the IC5 is a VCC end, the seventh end of the IC5 is an AGND end, the eighth end of the IC5 is an SW end, and the ninth end of the IC5 is a PGND end.

The first end of R26 and the first end of C42 are connected to the fourth end of IC5, the first end of R29 and the first end of C43 are connected to the fifth end of IC5, the second end of R26 and the second end of R29 are connected to a Pulse Width Modulation (PWM) interface (Pulse Width Modulation input interface) XPWM-UH and XPWM-UL of a Micro Controller Unit (MCU) processor, respectively. And two ends of the C27 are respectively connected with the second end and the third end of the IC 5. The direct current power supply module is connected with the sixth end of the IC5 and provides +5V direct current voltage for the IC 5. The sixth terminal of IC5 is also connected to the first terminal of C48. The dc power supply module is also connected to the first terminal of the IC5 to provide a drain voltage + VDC to the IC 5. The two ends of C30, C31, C32, C33 are connected to the first end and the ninth end of IC5 respectively. The ninth terminal of IC5 is connected to digital ground PGND. The second terminals of C42, C43, C48 and the seventh terminal of IC5 are connected to the analog ground GND. The eighth terminal of IC5 is connected to the input terminal U-L of the blower.

The resistances of the resistors R26 and R29 may be, for example, 20 Ω, the capacitances of the capacitors C42 and C43 may be, for example, 47pF, the capacitances of the capacitors C27 and C30 may be, for example, 0.1uF/100V, the capacitances of the capacitors C31, C32 and C33 may be, for example, 3.3uF, and the capacitance of the capacitor C48 may be, for example, 2.2uF.

In the embodiment of the present application, the remote monitoring module includes a remote communication module and a Micro Controller Unit (MCU) processor; wherein the content of the first and second substances,

the remote communication module is connected to the direct-current power supply module and the MCU processor and used for receiving a program refreshing instruction and sending the program refreshing instruction to the MCU processor;

According to some embodiments, a telecommunications module refers to a module having telecommunications capabilities. The telecommunications module is not specific to a fixed module. The remote communication module includes, but is not limited to, a wireless communication technology WIFI module, a Bluetooth (Bluetooth Low Energy, BLE) module, a WIFI/BLE dual function module, a Controller Area Network (CAN) bus module, and the like.

In some embodiments, the remote communication module may include at least one of a WIFI module, a BLE module, a WIFI/BLE dual function module, a CAN bus module. For example, the remote monitoring module may include a WIFI/BLE dual function module, a CAN bus module, and an MCU processor.

In some embodiments, a CAN bus module does not refer specifically to a fixed module. For example, the CAN bus module may be a controller area network transceiver circuit composed of a CAN transceiver ISO1050, a TVS pipe PESD1CAN, a common mode filter B8279, and a resistor.

In the embodiment of the present application, the remote monitoring module further includes a signal sampling module;

and the remote communication module is also used for uploading the monitoring information to a remote database and an upper computer.

According to some embodiments, the signal sampling module does not refer specifically to a fixed module. The signal sampling module includes, but is not limited to, a phase current sampling module, a voltage sampling module, a rotational speed sampling module, and the like.

In some embodiments, the phase current sampling module does not refer specifically to a fixed module. For example, the phase current sampling module may be composed of a sampling resistor and a sampling amplifier.

In some embodiments, when the MCU processor monitors the operating conditions of the high-speed high-efficiency turbo fan according to the sampled signals, the operating conditions that can be monitored include, but are not limited to, rotational speed, power, voltage, current, accumulated time, phase current, and the like. In addition, the MCU processor can also monitor fault codes of the high-speed and high-efficiency turbine fan and program version information of the motor driving application program.

In some embodiments, when the remote communication module uploads the monitoring information to the upper computer, the upper computer can store the monitoring information in the remote database, and then data analysis and predictive analysis can be performed.

In an embodiment of the present application, a dc power supply module includes: a dc converter, a dc power supply, an Electromagnetic Interference (EMI) filter circuit, and a high-frequency capacitor; wherein, the first and the second end of the pipe are connected with each other,

the direct current power supply is connected to the EMI filter circuit, the EMI filter circuit is connected to the direct current converter and the GaN device, and the direct current converter is connected to the remote monitoring module and the GaN device topology module;

the positive pole of high frequency electric capacity is connected to the GaN device, and the negative pole of high frequency electric capacity is connected to DC power supply's negative pole for reduce the EMI noise source of GaN device topology module.

According to some embodiments, the dc power supply does not refer to a fixed power supply. For example, the DC power supply may be a 9-60V DC power supply.

According to some embodiments, the dc power supply module further comprises a positive voltage supply circuit of +6VDC and a negative voltage supply circuit of-4 VDC for supplying positive and negative voltages to the at least one GaN device.

According to some embodiments, fig. 3 is a circuit schematic diagram of an EMI filter circuit provided in an embodiment of the present application. As shown in fig. 3, the EMI filter circuit includes a Transient Voltage Super (TVS) D6, a common mode filter T2, an X capacitor C103, and a Y capacitor C104. The two ends of the transient diode D6 are respectively connected to the first end and the second end of the common mode filter T2, the second end of the common mode filter T2 is connected to the dc power supply, the fourth end of the common mode filter T2 is connected to the anode of the Y capacitor C104, the fifth end of the common mode filter T2 is connected to the anode of the X capacitor C103, and the cathode of the X capacitor C103 and the cathode of the Y capacitor C104 are grounded.

The model of the TVS tube may be, for example, SM8S36CA. The model of the common mode filter T2 may be, for example, CR7915AL.

The capacitance values of the X capacitor C103 and the Y capacitor C104 may be 330pF, for example.

In some embodiments, in the related art, the input and output of the high-speed turbofan and the controller are free of an EMI filter circuit, so that EMC exceeds the standard seriously, the user requirements cannot be directly met, the technical requirements can be met only by adding measures to a terminal system and repeatedly verifying, the development cycle is long, and the capital investment is high. Therefore, the present application connects the output of the EMI filter circuit to the DC converter and the drain of the at least one GaN device by connecting the input of the EMI filter circuit to the DC power supply 9-60VDC. Can filter out the conduction interference between 300kHz and 10MH, reduce EMI and reduce the harmonic content.

In some embodiments, the EMI filter circuit further includes at least one filter capacitor, and as shown in fig. 3, filter capacitors C25, C26, C27, C101, C102, and C105 are disposed in the EMI filter circuit.

The capacitance of the filter capacitor C25 may be 12pF, the capacitance of the filter capacitors C26 and C101 may be 10uF, the capacitance of the filter capacitors C27 and C102 may be 1uF, and the capacitance of the filter capacitor C105 may be 10nF, for example.

In some embodiments, as shown in FIG. 3, the EMI filter circuit further includes a fuse F1 and a diode D7 for preventing power supply reverse connection and circuit fault protection.

The type of the fuse F1 may be FUSEI (0.4, 85), for example.

In an embodiment of the application, the high-speed high-efficiency turbofan controller further comprises an output filter, and the GaN device topology module may be connected to the high-speed high-efficiency turbofan through the output filter. The accuracy of controlling the high-speed and high-efficiency turbine fan can be improved.

According to some embodiments, the output filter may be composed of a nano-core filter inductor, a capacitor. The nano magnetic core has the characteristics of high saturation magnetic induction intensity, high magnetic permeability, low coercive force, low loss, low magnetostriction coefficient and high temperature resistance compared with the common magnetic powder core magnetic ring. The equivalent inductance technical parameter is small in size and high in efficiency.

By way of example, fig. 4 is an electrical architecture diagram of a high-speed high-efficiency turbofan controller according to an embodiment of the present application. As shown in fig. 4, the high-speed high-efficiency turbofan controller includes a dc power supply module, a remote monitoring module, three GaN device topology modules, and an output filter. The remote monitoring module comprises an MCU (microprogrammed control Unit) processor, a WIFI + BLE module, a CAN (controller area network) transceiver circuit and three phase current sampling circuits; the direct current power supply module comprises a DC/CD converter, an EMI filter circuit, a 9-60VDC direct current power supply and a high-frequency capacitor C1; the GaN device topology module comprises two GaN devices and a GaN driving circuit; the MCU processor comprises an analog-to-digital converter (ADC), an enhanced Pulse Width Modulation (PWM) module, a pin mapping module and a Universal Asynchronous Receiver/Transmitter (UART)/controller area network communication module (CAN); the phase current sampling circuit includes a sampling resistor and an operational amplifier.

And the WIFI + BLE module and the CAN transceiving circuit are connected to a serial port/controller area network communication module of the MCU processor. The input end of the GaN driving circuit is connected to the enhanced pulse width modulation module and the pin mapping module of the MCU processor. The direct current power supply module is connected to the MCU processor, the GaN device and the GaN drive circuit, provides a +3.3V direct current power supply for the MCU processor, and provides a +5V direct current power supply for the GaN drive circuit. The output ends of the three phase current sampling circuits are connected to an analog-to-digital conversion module of the MCU processor, and the input ends of the three phase current sampling circuits are connected to the motor through an output filter. And the output end of the GaN device topology module is connected to the motor through a sampling resistor and an output filter.

The analog-to-digital conversion module of the MCU processor is also used for connecting a motor bus so as to acquire the three-phase terminal voltage corresponding to the motor. The analog-to-digital conversion module of the MCU processor is also used for acquiring a temperature signal corresponding to the motor and a rotating speed signal corresponding to the motor.

In an embodiment of the present application, the GaN device topology module further includes a printed circuit board;

the GaN device and the GaN driving circuit are packaged in the printed circuit board and are connected in an overlapping mode.

According to some embodiments, in the related art, the stray inductance of the high-speed turbofan controller is mostly between tens of nH and hundreds of nH, and high current change rate and voltage change rate exist. This application is through folding the GaN device with GaN drive circuit and being connected, and carry out the module encapsulation with it, can reduce the stray inductance of the topological module of GaN device to about 5nH, realization 100kHz switching frequency demand that can be stable, and the DC power supply module only need provide + 5V's direct current voltage supply can, the application design circuit of controller can be simplified, the power density of controller can be improved, the current rate of change and the voltage rate of change of high-speed turbofan controller can be reduced, and then can reduce the condition that the GaN device leads to the GaN device to damage by the influence of miscellaneous inductance and parasitic capacitance.

In the embodiment of the application, electronic components contained in the GaN device and the GaN driving circuit are arranged on the front surface of the printed circuit board;

the GaN device and the electronic component are connected in the printed circuit board through wiring, the wiring does not pass through the lower part of the GaN device, and the wire length of the wiring surrounding the GaN device is not higher than 1/3 of the perimeter of the GaN device;

the GaN device is grounded on the front surface of the printed circuit board through a ground wire, a GND network is arranged in the ground wire and comprises at least two through holes, and the through holes are used for connecting the ground wire to the copper foil on the back surface of the printed circuit board.

According to some embodiments, the GND network is arranged in the grounding wire, so that EMI interference can be reduced, communication gain can be increased by over 3dB, and transmission distance can be increased by 5-10m.

In the embodiment of the application, the direct current power supply module comprises a high-frequency capacitor, and the high-frequency capacitor is arranged in the printed circuit board and is arranged on the power supply interface of the GaN device, so that the EMI noise source of the GaN device topology module can be further reduced.

According to some embodiments, when the high-speed high-efficiency turbofan controller employs a printed circuit board, the GaN device topology module is disposed at an edge of the printed circuit board.

According to some embodiments, the clearance of the via holes is set to be less than or equal to 5mil, so that the conduction area and the circulation area can be reduced, and the size and the cost of the high-speed and high-efficiency turbofan controller can be further reduced.

To sum up, the high-speed high-efficiency turbofan controller provided by the embodiment of the application comprises: the GaN device topology module comprises two GaN devices and a GaN driving circuit, and the GaN devices are connected to the remote monitoring module through the GaN driving circuit; the direct-current power supply module is connected to the remote monitoring module and the GaN device topology module and used for supplying power to the remote monitoring module and the GaN device topology module; the remote monitoring module is connected to the GaN device topology module and used for controlling the switching sequence state of the GaN device through the GaN driving circuit based on a motor driving application program in the remote monitoring module and refreshing the motor driving application program based on a program refreshing instruction; and the GaN device topology module is used for controlling the high-speed and high-efficiency turbine fan according to the switching sequence state of the GaN device. According to the controller, the GaN device is adopted to replace the MOSFET, the switching frequency can be increased to 100kHz, the dead time can be controlled at a nanosecond level, the noise of the controller can be reduced, and the efficiency, the response speed, the power density and the service life of the controller are improved. The motor driving application program is refreshed through the remote monitoring module based on the program refreshing instruction, after-sale analysis can be conducted remotely, and convenience of after-sale analysis of the controller can be improved.

In order to implement the above embodiments, the present application further provides a program refreshing method.

As shown in fig. 5, fig. 5 is a flowchart of a first program refreshing method provided in the embodiment of the present application, where the method may be implemented by relying on a computer program and may be executed on a high-speed high-efficiency turbofan controller.

Specifically, the program refreshing method includes:

s101, receiving a program refreshing instruction, and entering a diagnosis programming mode according to the program refreshing instruction;

according to some embodiments, the program refresh command refers to a command acquired by the high speed high efficiency turbofan controller for refreshing a motor drive application. The program refresh command is not specific to a fixed command. For example, the program refresh command may change when the high speed high efficiency turbofan controller obtains a modification command for the program refresh command.

According to some embodiments, the diagnostic programming mode refers to a mode for discovering and addressing software or hardware problems in a high speed, high efficiency turbine fan controller. The diagnostic programming mode is not specific to a fixed mode. For example, the diagnostic programming mode may change when a high speed high efficiency turbofan controller changes. The diagnostic programming mode may also change when the high speed high efficiency turbofan controller obtains a mode modification instruction for the diagnostic programming mode.

It will be readily appreciated that when the high-speed high-efficiency turbofan controller receives a program refresh command, the high-speed high-efficiency turbofan controller may enter a diagnostic programming mode according to the program refresh command.

S102, performing interactive handshake with an upper computer according to a diagnosis programming mode to establish a data transmission channel;

according to some examples, the host computer refers to a computer that can directly issue a manipulation command. The upper computer is not particularly designated as a fixed upper computer. Including but not limited to a personal computer, host computer master computer, etc.

In some embodiments, the data transmission channel refers to a channel used for data transmission between the upper computer and the high-speed high-efficiency turbofan controller. The data transmission channel does not refer to a fixed channel. For example, the data transmission path may change when a high speed high efficiency turbofan controller changes. When the upper computer changes, the data transmission channel can also change.

It is easy to understand that, when the high-speed high-efficiency turbofan controller enters the diagnostic programming mode, the high-speed high-efficiency turbofan controller can perform interactive handshake with the upper computer according to the diagnostic programming mode to establish a data transmission channel.

And S103, carrying out data transmission through a data transmission channel, and carrying out program refreshing on the motor driving application program according to the received data.

According to some embodiments, the motor drive application refers to an application employed by a high-speed high-efficiency turbofan controller in driving a fan. The motor drive application is not specific to a fixed application. For example, when the high-speed high-efficiency turbofan controller receives a program modification instruction for a motor drive application, the motor drive application may be changed.

It is easy to understand that, when the high-speed and high-efficiency turbofan controller establishes a data transmission channel with the upper computer, the high-speed and high-efficiency turbofan controller can perform data transmission through the data transmission channel and perform program refreshing on the motor driving application program according to the received data.

In summary, the program refreshing method provided in the embodiment of the present application receives a program refreshing command, and enters a diagnostic programming mode according to the program refreshing command; performing interactive handshake with an upper computer according to a diagnosis programming mode to establish a data transmission channel; and carrying out data transmission through the data transmission channel, and carrying out program refreshing on the motor driving application program according to the received data. This application is through carrying out mutual shaking hands with the host computer according to diagnosis programming mode, can provide long-range after-sales analysis service to high-speed high-efficient turbine fan controller, and then can improve the convenience of high-speed high-efficient turbine fan controller after-sales analysis.

Referring to fig. 6, fig. 6 is a flowchart of a second program refreshing method provided by the embodiment of the present application, which may be implemented by relying on a computer program and may be run on a high-speed and high-efficiency turbofan controller.

Specifically, the program refresh method includes:

s201, receiving a program refreshing instruction, and entering a diagnosis programming mode according to the program refreshing instruction;

according to some embodiments, when the high-speed and high-efficiency turbofan controller receives a program refresh command and enters a diagnostic programming mode according to the program refresh command, the high-speed and high-efficiency turbofan controller further needs to run a current motor drive application program, execute power-on initialization parameters, and read flash parameters inside the high-speed and high-efficiency turbofan controller. And then, the high-speed and high-efficiency turbofan controller judges whether the received data is a program refreshing command or not. And if the high-speed and high-efficiency turbofan controller judges that the received data is not a program refreshing instruction, continuing to operate the current motor driving application program. And if the high-speed high-efficiency turbofan controller judges that the received data is a program refreshing instruction, exiting the current motor driving application program and entering a diagnosis programming mode. Accordingly, the accuracy of the high speed, high efficiency turbofan controller entering the diagnostic programming mode may be improved.

S202, performing interactive handshake with an upper computer according to a diagnosis programming mode to establish a data transmission channel;

according to some embodiments, when the interactive handshake is performed with the upper computer according to the diagnostic programming mode, if the handshake is successful, the high-speed and high-efficiency turbofan controller sends a program downloading request instruction, and meanwhile, a data transmission request, receiving and response mechanism is established between the high-speed and high-efficiency turbofan controller and the upper computer.

S203, judging whether the data is received completely based on the request and response data packets;

it is easy to understand that, when a data transmission channel is established between the high-speed high-efficiency turbofan controller and the upper computer, the high-speed high-efficiency turbofan controller can obtain data transmitted by the upper computer according to the data transmission channel. Meanwhile, the high-speed and high-efficiency turbofan controller can judge whether the data transmitted by the upper computer are received completely or not based on the request and response data packets.

S204, if the data reception is finished, verifying the data;

according to some embodiments, when the data is verified after the data is received, the high-speed and high-efficiency turbine fan controller exits the data transmission mode and then verifies the data. Therefore, the accuracy of data verification can be improved.

In some embodiments, if the high-speed high-efficiency turbofan controller determines that the data check passes, the high-speed high-efficiency turbofan controller may perform a program refresh on the motor drive application according to the data that passes the check.

In some embodiments, if the high-speed high-efficiency turbofan controller determines that the data verification fails, the high-speed high-efficiency turbofan controller may re-request downloading of the data. And if the number of times of newly requesting to download the data exceeds the preset number of times of downloading, directly exiting the disconnected programming mode and stopping the program refreshing.

It is easy to understand that when the high-speed high-efficiency turbofan controller judges that the data is received completely, the high-speed high-efficiency turbofan controller can verify the data.

S205, performing data analysis on the data passing the verification to extract a target motor driving application program;

according to some embodiments, the target motor driving application refers to a motor driving application transmitted by an upper computer and received by the high-speed high-efficiency turbofan controller when the high-speed high-efficiency turbofan controller performs program refreshing. The target motor drive application is not specific to a fixed application. For example, when data transmitted by the upper computer changes, the target motor drive application program may change. The target motor drive application may also change when the high-speed high-efficiency turbofan controller changes.

It is easy to understand that when the high-speed high-efficiency turbofan controller judges that the data transmitted by the upper computer passes the verification, the high-speed high-efficiency turbofan controller can analyze the data passing the verification so as to extract the target motor driving application program.

S206, erasing the initial motor driving application program, and writing the target motor driving application program to obtain the written target motor driving application program;

according to some embodiments, the initial motor driver application refers to a motor driver application currently loaded by the high-speed high-efficiency turbofan controller when the high-speed high-efficiency turbofan controller performs program refreshing. The initial motor drive application is not specific to a fixed application. For example, the initial motor drive application may change when a high speed high efficiency turbofan controller changes.

It will be readily appreciated that when the high-speed high-efficiency turbofan controller extracts the target motor drive application, the high-speed high-efficiency turbofan controller may erase the initial motor drive application and write to the target motor drive application. Further, the high-speed high-efficiency turbofan controller can obtain the written target motor drive application program.

S207, reading the written target motor driving application program, and judging whether the code of the read target motor driving application program is consistent with the code of the extracted target motor driving application program;

it is readily understood that when the written target motor drive application is available to the high-speed high-efficiency turbofan controller, the high-speed high-efficiency turbofan controller may perform a program read-out of the written target motor drive application. Further, the high-speed high-efficiency turbofan controller may determine whether the read code of the target motor drive application is identical to the extracted code of the target motor drive application.

And S208, if the voltage is consistent with the preset voltage, ending and resetting the diagnosis programming mode.

According to some embodiments, if the high-speed high-efficiency turbofan controller determines that the read code of the target motor drive application program is inconsistent with the extracted code of the target motor drive application program, the high-speed high-efficiency turbofan controller may erase the initial motor drive application program again and write the target motor drive application program. And if the times of re-erasing and writing exceed the preset writing times, directly exiting the disconnected programming mode and stopping the program refreshing.

It will be readily appreciated that if the high-speed high-efficiency turbofan controller determines that the read target motor drive application code is consistent with the extracted target motor drive application code, the high-speed high-efficiency turbofan controller may end and reset the diagnostic programming mode.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A high speed high efficiency turbofan controller, comprising: the GaN device topology module comprises two GaN devices and a GaN driving circuit, and the GaN devices are connected to the remote monitoring module through the GaN driving circuit; wherein the content of the first and second substances,

the GaN device topology module is used for controlling the high-speed high-efficiency turbine fan according to the switching sequence state of the GaN device;

wherein, the DC power supply module includes: the device comprises a direct current converter, a direct current power supply, an electromagnetic interference EMI filter circuit and a high-frequency capacitor; wherein the content of the first and second substances,

2. The high-speed high-efficiency turbofan controller of claim 1 wherein the remote monitoring module comprises a remote communications module and a Micro Control Unit (MCU) processor; wherein, the first and the second end of the pipe are connected with each other,

3. The high-speed high-efficiency turbofan controller of claim 2 wherein the remote monitoring module further comprises a signal sampling module;

4. The high-speed high-efficiency turbofan controller of claim 1 wherein the GaN device topology module further comprises a printed circuit board;

the GaN device and the GaN driving circuit are packaged in the printed circuit board, and the GaN device and the GaN driving circuit are connected in an overlapping mode.

5. The high-speed high-efficiency turbofan controller of claim 4 wherein the GaN devices and the GaN drive circuitry comprise electronic components mounted to a front side of the printed circuit board;

the GaN device and the electronic component are connected in the printed circuit board through a wiring, the wiring does not pass through the lower part of the GaN device, and the length of the wiring around the GaN device is not higher than 1/3 of the perimeter of the GaN device;

6. The high-speed high-efficiency turbofan controller of claim 4 wherein the DC power module comprises a high frequency capacitor mounted to the power interface of the GaN device in the printed circuit board.

7. A program refresh method operating in a high speed high efficiency turbofan controller according to any of claims 1 to 6 comprising:

8. The method of claim 7, wherein said transmitting data via said data transmission channel and performing a program refresh on a motor drive application based on the received data comprises:

if the data reception is finished, verifying the data;

9. The method of claim 8, wherein the performing a program refresh of the motor drive application based on the verified data comprises:

performing data analysis on the data passing the verification to extract a target motor driving application program;

erasing the initial motor driving application program, and writing the target motor driving application program to obtain the written target motor driving application program;

if so, the diagnostic programming mode is ended and reset.