CN112366966A - Single-switch half-bridge electric energy converter - Google Patents
Single-switch half-bridge electric energy converter Download PDFInfo
- Publication number
- CN112366966A CN112366966A CN202011296780.0A CN202011296780A CN112366966A CN 112366966 A CN112366966 A CN 112366966A CN 202011296780 A CN202011296780 A CN 202011296780A CN 112366966 A CN112366966 A CN 112366966A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- diode
- switch
- inductor
- respectively connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 126
- 238000006243 chemical reaction Methods 0.000 abstract description 42
- 230000002457 bidirectional effect Effects 0.000 abstract description 12
- 230000000295 complement effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 15
- 230000007547 defect Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
A single-switch half-bridge electric energy converter relates to the field of electric energy converters. The invention aims to solve the problems that the existing electric energy converters need to be mutually isolated when in complementary driving, are difficult to realize current mode conversion and soft switch control, and are difficult to realize active power factor conversion control and bidirectional electric energy conversion. One end of a switch S of the single-switch half-bridge electric energy converter is respectively connected with the cathode of a direct-current power supply, the anode of a diode D and a capacitor Co2And the other end of the switch S is respectively connected with an inductor LpOne terminal of the diode D, one terminal of the capacitor C, the inductor LpThe other end of the capacitor is respectively connected with the anode of the direct current power supply and the capacitor Co1One terminal of (C), a capacitoro1The other end of the output transformer is respectively connected with the primary end of the output transformer and the capacitor Co2The other end of the capacitor C is connected with the other end of the primary side of the output transformer, and the secondary side of the output transformer is an alternating current output end.
Description
Technical Field
The invention belongs to the field of electric energy converters.
Background
In the field of power converters, one of the most widely used power converters at present is a conventional half-bridge power converter formed by connecting an output loop between one capacitor bridge arm and one switch bridge arm, as shown in fig. 1, which is also the most classical DC/AC power converter. The traditional half-bridge power converter has the following defects:
(1) the switching devices are connected in series up and down in the bridge arm structure, and the connection relationship of the switching devices causes mutual isolation in complementary driving, so that the circuit structure is complex and inconvenient to control;
(2) current mode conversion is not easy to realize;
(3) input active power factor control is not easy to realize;
(4) the hidden trouble that the upper switch and the lower switch are directly connected in operation under certain occasions exists.
Although there is a single-switch current-mode converter in the field of power conversion, it has the advantages of driving function, simple and convenient control, and easy implementation of current-mode conversion, as shown in fig. 2. However, when the switch is applied to a general power grid, the current and voltage stress of a switch device is large, so that the wide application of the switch device is limited.
Through analysis, the two traditional electric energy converter circuit structures have the defects, and the main reasons are caused by the connection relationship of all the connecting components forming the circuit structure and the circuit structure form.
In summary, the following problems exist in the application of the conventional half-bridge converter:
1. the driving control is complicated and needs to be isolated from each other.
2. Current mode conversion and soft switching control are not easily achieved.
3. It is not easy to realize active power factor conversion control and bidirectional electric energy conversion.
Disclosure of Invention
The invention provides three single-switch half-bridge electric energy converters for solving the problems that the existing electric energy converters need to be mutually isolated during complementary driving, current mode conversion and soft switch control are not easy to realize, and active power factor conversion control and bidirectional electric energy conversion are not easy to realize.
A first single-switch half-bridge power converter comprises: inductor LpCapacitor C, capacitor Co1Capacitor Co2A switch S, a diode D and an output transformer, wherein one end of the switch S is respectively connected with the cathode of the DC power supply, the anode of the diode D and a capacitor Co2And the other end of the switch S is respectively connected with an inductor LpOne terminal of the diode D, one terminal of the capacitor C, the inductor LpThe other end of the capacitor is respectively connected with the anode of the direct current power supply and the capacitor Co1One terminal of (C), a capacitoro1The other end of the output transformer is respectively connected with the primary end of the output transformer and the capacitor Co2The other end of the capacitor C is connected with the other end of the primary side of the output transformer, and the secondary side of the output transformer is an alternating current output end.
A second single-switch half-bridge power converter comprises: inductor LiInductor LpInductor LRCapacitor C, capacitor CiCapacitor CoDiode D1Diode D2Diode D3Switch S and resistor RLDCOne end of the switch S is respectively connected with one end of the alternating current power supply and the capacitor CiAnd the other end of the switch S is respectively connected with an inductor LpOne terminal of the capacitor C, the inductor LiOne end of the inductor L is connected with the other end of the alternating current power supplyiThe other ends of the two capacitors are respectively connected with a capacitor CiAnother terminal of (1), diode D2Anode and diode D1Negative electrode of (2), diode D3A diode D connected in parallel at both ends of the switch S2Respectively connected with the inductors LpAnother terminal of (1), a capacitor CoAnd a resistor RLDCThe other end of the capacitor C is connected with an inductor LROne terminal of (D), diode D1Positive electrodes of the two electrodes are respectively connected with an inductor LRAnother terminal of (1), a capacitor CoAnother terminal of (1) and a resistor RLDCAnd the other end of the same.
The second single-switch half-bridge power converter further includes: capacitor CrAnd a resistance RLACCapacitor CrConnected in parallel to the diode D3Two ends, resistance RLACOne end of (1) and an inductor LRIs connected to the other end of the resistor RLACThe other end of the diode D is respectively connected with the diode D1Positive electrode and capacitor CoAnother terminal of (1) and a resistor RLDCAnd the other end of the two are connected.
The second single-switch half-bridge power converter further includes: diode D4And an active capacitance Co1Polar capacitance Co1Connected in parallel to a resistor RLACAnd a polar capacitance Co1Negative electrode of (1) and inductor LRIs connected at the other end, diode D4Is connected in parallel to the inductor LRAnd an active capacitance Co1Both ends of the series structure are formed, and a diode D4Positive electrode and inductor LRAre connected at one end.
A third type of single-switch half-bridge power converter includes: inductor LiInductor LpCapacitor CbCapacitor CiCapacitor Co1Capacitor Co2Diode D1Diode D2Diode D3Switch S, resistor RLACAnd a resistance RLDCOne end of the switch S is respectively connected with one end of the alternating current power supply and the capacitor CiAnd the other end of the switch S is respectively connected with an inductor LpOne terminal of and a capacitor CbOne terminal of (1), inductance LiOne end of the inductor L is connected with the other end of the alternating current power supplyiThe other ends of the two capacitors are respectively connected with a capacitor CiAnother terminal of (1), diode D2Anode and diode D1Negative electrode of (2), diode D3A diode D connected in parallel at both ends of the switch S2Respectively connected with the inductors LpAnother terminal of (1), a capacitor Co1And a resistor RLDCOne terminal of (C), a capacitorbAnother end of the resistor R is connected with a resistor RLACOne terminal of (1), resistance RLACThe other ends of the two capacitors are respectively connected with a capacitor Co1Another terminal of (1) and a capacitor Co2One terminal of (D), diode D1Respectively connected with a capacitor Co2Another terminal of (1) and a resistor RLDCAnd the other end of the same.
The single-switch half-bridge bidirectional electric energy converter has the following beneficial effects:
1. the circuit structure is simple, and the number of power switching devices is small;
2. the driving control is convenient, and the current mode conversion and control are easy to realize;
3. several power switching devices can be connected in parallel for use and soft switching control;
4. the system has the functions of self-evolution and multi-occasion output and bidirectional transformation;
5. the components forming the circuit structure are all universal electronic components, and the assembly cost and the batch organization production cost of the unit are both low.
Drawings
FIG. 1 is a circuit diagram of a conventional half-bridge power converter;
FIG. 2 is a circuit diagram of a single switch current mode converter;
fig. 3 is a schematic circuit diagram of a single-switch half-bridge power converter according to an embodiment;
FIG. 4 is an equivalent circuit diagram of the circuit shown in FIG. 3;
FIG. 5 is a diagram of a single switch Boost half-bridge circuit developed for the circuit of FIG. 3;
fig. 6 is a schematic diagram of a combined circuit structure of a conventional Boost/PFC converter and a conventional half-bridge converter;
FIGS. 7 and 8 are schematic diagrams of single-switch half-bridge circuit structures of class E operation conversion and CUK conversion respectively, which are evolved from the circuit in FIG. 3;
fig. 9 and fig. 10 are schematic diagrams of two circuit structures for input rectification of a conventional half bridge respectively;
fig. 11 is a schematic circuit diagram of a single-switch half-bridge power converter according to a second embodiment;
fig. 12 is an equivalent circuit diagram of the operating principle of the single-switch bidirectional power converter shown in fig. 11;
fig. 13 is a schematic circuit diagram of a single-switch half-bridge power converter according to a third embodiment;
fig. 14, 15 and 16 are schematic circuit structures of the Boost/PFC, class E half bridge and CNK converter of the evolution of fig. 11, respectively;
FIG. 17 is a schematic diagram of an exemplary isolated UPS system circuit configuration;
FIG. 18 is a schematic diagram of an isolated UPS system using basic converter units A and B;
FIG. 19 is a schematic diagram of a classical Vienna high power factor converter circuit configuration;
fig. 20 is a schematic circuit diagram of a circuit structure of the basic conversion unit C and the vienna converter after being fused.
Detailed Description
The first embodiment is as follows: referring to fig. 3, the present embodiment will be described in detail, comparing the two circuit configurations shown in fig. 1 and 2, and incorporating the capacitor bridge arm in the circuit shown in fig. 1 into the circuit shown in fig. 2, or using the inductor L in fig. 2pInstead of the upper arm switch S in FIG. 12The connection relationship of other components is not changed, the new circuit structure formed in this way is shown in fig. 3, and the equivalent circuit of the working principle is shown in fig. 4. The concrete structure is as follows:
the method comprises the following steps: inductor LpCapacitor C, capacitor Co1Capacitor Co2A switch S, a diode D and an output transformer,
one end of the switch S is respectively connected with the cathode of the direct current power supply, the anode of the diode D and the capacitor Co2And the other end of the switch S is respectively connected with an inductor LpOne terminal of the diode D, one terminal of the capacitor C, the inductor LpThe other end of the capacitor is respectively connected with the anode of the direct current power supply and the capacitor Co1One terminal of (C), a capacitoro1The other end of the output transformer is respectively connected with the primary end of the output transformer and the capacitor Co2The other end of the capacitor C is connected with the other end of the primary side of the output transformer, and the secondary side of the output transformer is an alternating current output end.
The capacitor C in the circuits of fig. 3 and 4 is a blocking capacitor of the output circuit, and the real and dotted lines in fig. 4 respectively indicate the switching directions of the operating current when the switch S is turned on and off during the operation of the circuit, that is, the output load passes through the reciprocating switching current once in each switching period, the operating principle of the output load circuit is basically the same as that of a conventional half bridge, and the DC/AC power conversion function can be realized for the output load.
Because the drive control is simplified, the single-switch half-bridge power converter can easily realize current type conversion, inherits the direct current unbalance resisting capability of the traditional half-bridge power converter, and practices prove that the midpoint of a capacitor bridge arm in the circuit is the midpoint voltage of the input voltage, so that the single-switch half-bridge power converter can be used in some occasionsCan be used as a balance bridge. Another characteristic of this embodiment is that it can be used as an electric energy converter platform, and the field of view needs to adaptively evolve the connection relationship of several passive components in its circuit structure to meet the needs of multiple situations, for example: two diodes are respectively connected to the inductor LpBoth ends enable the circuit to have a Boost function and realize active PFC control, and the circuit becomes a Boost half bridge, as shown in FIG. 5. D in FIG. 52To isolate the diode, D3Is a boost diode.
In certain demanding situations, a combined circuit configuration of a conventional Boost/PFC converter + a conventional half-bridge converter is often seen, as shown in fig. 6. But its wide use is limited due to the increased complexity and cost of the combined circuit structure. The circuit shown in fig. 5 can be a simplified version of the circuit shown in fig. 6 with an expanded application range through proper evolution. Similarly, the output circuit of the present embodiment can be evolved into a single-switch half-bridge extended version of class E operation conversion and CUK conversion as a platform, as shown in fig. 7 and 8. The platform evolution action widens the application range of the single-switch half-bridge converter, and the main basis of the platform evolution is that the single-switch half-bridge converter has a common point in the working principle.
The structure of this embodiment is referred to as a basic conversion unit a, and the basic conversion unit a is used as a platform to change the connection relationship of main components so that the operating current thereof is suitable for input rectification. It is known that the conventional half-bridge converter also has an AC/AC or input rectifying function, but the wide application thereof is affected by the defects existing in the practical application. The structure of a traditional half-bridge circuit for input rectification is shown in fig. 9 and 10, and the voltage stress of each component in the circuit of fig. 9 is large except that the driving control is complicated; the two general purpose switching devices in the circuit of fig. 10 have large conduction losses during input rectification.
The second embodiment is as follows: specifically describing this embodiment with reference to fig. 11 and 12, this embodiment replaces the lower end of the switch S in the basic conversion unit a to one end of the ac input and removes the input rectifier diode bridge arm of that end; the other end of the alternating current input is connected with an LC inductance-capacitance input filter network; an LC capacitor inductor series loop is connected to the original position of the switch S. The specific structure is shown in fig. 11, and the working principle equivalent circuit is shown in fig. 12.
Specifically, the single-switch half-bridge power converter according to this embodiment includes: inductor LiInductor LpInductor LRCapacitor C, capacitor CiCapacitor CoDiode D1Diode D2Diode D3Switch S and resistor RLDC，
One end of the switch S is respectively connected with one end of the alternating current power supply and the capacitor CiAnd the other end of the switch S is respectively connected with an inductor LpOne terminal of the capacitor C, the inductor LiOne end of the inductor L is connected with the other end of the alternating current power supplyiThe other ends of the two capacitors are respectively connected with a capacitor CiAnother terminal of (1), diode D2Anode and diode D1Negative electrode of (2), diode D3A diode D connected in parallel at both ends of the switch S2Respectively connected with the inductors LpAnother terminal of (1), a capacitor CoAnd a resistor RLDCThe other end of the capacitor C is connected with an inductor LROne terminal of (D), diode D1Positive electrodes of the two electrodes are respectively connected with an inductor LRAnother terminal of (1), a capacitor CoAnother terminal of (1) and a resistor RLDCAnd the other end of the same.
In fig. 12, solid and broken lines indicate the direction of change of the operating current during the on and off periods of the switch S, respectively. Practice also proves that the single-switch half-bridge power converter of the embodiment can realize the bridgeless input active rectification function even only one switch is used for working, and can also carry out single-switch single-stage AC/AC conversion in many occasions.
The evolution function of the single-switch half-bridge power converter with the conversion platform in this embodiment is shown in fig. 14, 15 and 16, which are single-switch converters each having a bridgeless input rectification function, and they are respectively: single switch Boost/PFC, class E and CNK single switch converters.
Further, as shown in fig. 15, the single-switch bidirectional power converter further includes: capacitor CrAnd a resistance RLACCapacitor CrConnected in parallel to the diode D3Two ends, resistance RLACOne end of (1) and an inductor LRIs connected to the other end of the resistor RLACThe other end of the diode D is respectively connected with the diode D1Positive electrode and capacitor CoAnother terminal of (1) and a resistor RLDCAnd the other end of the two are connected.
Further, as shown in fig. 16, the single-switch bidirectional power converter further includes: diode D4And an active capacitance Co1，
Polar capacitance Co1Connected in parallel to a resistor RLACAnd a polar capacitance Co1Negative electrode of (1) and inductor LRThe other end of the first and second connecting rods is connected,
diode D4Is connected in parallel to the inductor LRAnd an active capacitance Co1Both ends of the series structure are formed, and a diode D4Positive electrode and inductor LRAre connected at one end.
The third concrete implementation mode: specifically, referring to fig. 13, the single-switch half-bridge power converter according to the present embodiment includes: inductor LiInductor LpCapacitor CbCapacitor CiCapacitor Co1Capacitor Co2Diode D1Diode D2Diode D3Switch S, resistor RLACAnd a resistance RLDC，
One end of the switch S is respectively connected with one end of the alternating current power supply and the capacitor CiAnd the other end of the switch S is respectively connected with an inductor LpOne terminal of and a capacitor CbOne terminal of (1), inductance LiOne end of the inductor L is connected with the other end of the alternating current power supplyiThe other ends of the two capacitors are respectively connected with a capacitor CiAnother terminal of (1), diode D2Anode and diode D1Negative electrode of (2), diode D3A diode D connected in parallel at both ends of the switch S2Respectively connected with the inductors LpAnother terminal of (1), a capacitor Co1And a resistor RLDCOne terminal of (C), a capacitorbAnother end of the resistor R is connected with a resistor RLACOne terminal of (1), resistance RLACThe other ends of the two capacitors are respectively connected with a capacitor Co1In addition toOne terminal and a capacitor Co2One terminal of (D), diode D1Respectively connected with a capacitor Co2Another terminal of (1) and a resistor RLDCAnd the other end of the same.
The single-switch half-bridge power converter according to the second embodiment is referred to as a basic conversion unit B, and the single-switch half-bridge power converter according to the second embodiment is referred to as a basic conversion unit C. The basic conversion unit C only has more bridge arm midpoint voltage than the basic conversion unit B, other differences are not large, voltage stress of the power switch is the same, functional evolution can be carried out, direct current voltage can be output to a rear-stage load at the E-F point, and AC and DC loads can be output simultaneously.
The basic features of the elementary transform unit B, C are as follows:
a. the circuit structure is simple, and the power switch devices are the least.
b. The driving control is convenient, and the current mode conversion and control are easy to realize.
c. It is easy to connect several power switches in parallel and to perform soft switching control.
d. The self-evolution adaptive multi-situation output function is achieved, and the basic transformation unit B, C has a bidirectional transformation function.
e. The components forming the circuit structure are all universal electronic components, and the assembly cost and the batch organization production cost of the unit are both low.
f. The basic conversion unit C also has the capability of resisting imbalance of direct current.
In practical operation, the single-switch bidirectional power converter according to the above two embodiments can be applied as follows:
1. in the field of medium and small power uninterruptible power supplies, which generally comprise AC/DC and DC/AC converters, the circuit shown in fig. 17 is a typical isolated UPS system, which uses a conventional diode bridge rectification method and 9 power switching devices.
An isolated UPS system constructed using the basic conversion unit A, B is shown in fig. 18. As can be seen from the conventional Boost + conventional half-bridge output shown in fig. 17, a large-capacity electrolytic capacitor with a higher voltage must be used as a DC load between the Boost/PFC of the front stage and the DC/AC conversion of the rear stage, and the three unreliable large-capacity electrolytic capacitors can be omitted by directly converting the input rectification into the AC conversion by using the basic conversion unit B. Most importantly, 4 power switches are omitted, only 5 power switches are used, and almost half of the power switches are omitted before.
2. Use of a basic converter unit C in a three-phase network
In the field of three-phase input rectification, a classical vienna high power factor converter is used with good functionality and practicability, as shown in fig. 19. The converter mainly has the advantages in three-phase input rectification: the power conversion rate is high, the THD of input current is small, the voltage of a switching device is low, high power factor control is easy to realize, and the reliability is high. The disadvantages are that: the number of switching devices is large, the control is complex, and only unidirectional rectification transformation can be realized.
Compared with the circuit structure of the basic conversion unit C and the Vienna converter, the basic conversion unit C and the Vienna converter are combined together, the basic conversion unit C can inherit respective advantages and can also make best use of advantages and avoid disadvantages, the combined Vienna converter can overcome the defects of the three points, not only are switching devices reduced, but also control is simple, and a direct conversion output function is added, so that the Vienna converter has a bidirectional conversion function, namely a platform evolution function and a combination function of the basic conversion unit C, and a specific circuit is shown in figure 20.
The fewer the number of components that pass from the input to the output of the load, the more efficient and reliable the device will be. More knowledge, evolution and application of single-switch half-bridge bidirectional power converters are needed in more fields, especially in the industrial field.
Claims (5)
1. A single-switch half-bridge power converter, comprising: inductor LpCapacitor C, capacitor Co1Capacitor Co2A switch S, a diode D and an output transformer,
one end of the switch S is respectively connected with the cathode of the direct current power supply, the anode of the diode D and the capacitor Co2And the other end of the switch S is respectively connected with an inductor LpOne terminal of the diode D, one terminal of the capacitor C, the inductor LpIn addition toOne end of the capacitor is respectively connected with the anode of the direct current power supply and the capacitor Co1One terminal of (C), a capacitoro1The other end of the output transformer is respectively connected with the primary end of the output transformer and the capacitor Co2The other end of the capacitor C is connected with the other end of the primary side of the output transformer, and the secondary side of the output transformer is an alternating current output end.
2. A single-switch half-bridge power converter, comprising: inductor LiInductor LpInductor LRCapacitor C, capacitor CiCapacitor CoDiode D1Diode D2Diode D3Switch S and resistor RLDC，
One end of the switch S is respectively connected with one end of the alternating current power supply and the capacitor CiAnd the other end of the switch S is respectively connected with an inductor LpOne terminal of the capacitor C, the inductor LiOne end of the inductor L is connected with the other end of the alternating current power supplyiThe other ends of the two capacitors are respectively connected with a capacitor CiAnother terminal of (1), diode D2Anode and diode D1Negative electrode of (2), diode D3A diode D connected in parallel at both ends of the switch S2Respectively connected with the inductors LpAnother terminal of (1), a capacitor CoAnd a resistor RLDCThe other end of the capacitor C is connected with an inductor LROne terminal of (D), diode D1Positive electrodes of the two electrodes are respectively connected with an inductor LRAnother terminal of (1), a capacitor CoAnother terminal of (1) and a resistor RLDCAnd the other end of the same.
3. The single-switch half-bridge power converter of claim 2, further comprising: capacitor CrAnd a resistance RLACCapacitor CrConnected in parallel to the diode D3Two ends, resistance RLACOne end of (1) and an inductor LRIs connected to the other end of the resistor RLACThe other end of the diode D is respectively connected with the diode D1Positive electrode and capacitor CoAnother terminal of (1) and a resistor RLDCAnd the other end of the two are connected.
4. The single-switch half-bridge power converter of claim 2, further comprising: diode D4And an active capacitance Co1，
Polar capacitance Co1Connected in parallel to a resistor RLACAnd a polar capacitance Co1Negative electrode of (1) and inductor LRThe other end of the first and second connecting rods is connected,
diode D4Is connected in parallel to the inductor LRAnd an active capacitance Co1Both ends of the series structure are formed, and a diode D4Positive electrode and inductor LRAre connected at one end.
5. A single-switch half-bridge power converter, comprising: inductor LiInductor LpCapacitor CbCapacitor CiCapacitor Co1Capacitor Co2Diode D1Diode D2Diode D3Switch S, resistor RLACAnd a resistance RLDC，
One end of the switch S is respectively connected with one end of the alternating current power supply and the capacitor CiAnd the other end of the switch S is respectively connected with an inductor LpOne terminal of and a capacitor CbOne terminal of (1), inductance LiOne end of the inductor L is connected with the other end of the alternating current power supplyiThe other ends of the two capacitors are respectively connected with a capacitor CiAnother terminal of (1), diode D2Anode and diode D1Negative electrode of (2), diode D3A diode D connected in parallel at both ends of the switch S2Respectively connected with the inductors LpAnother terminal of (1), a capacitor Co1And a resistor RLDCOne terminal of (C), a capacitorbAnother end of the resistor R is connected with a resistor RLACOne terminal of (1), resistance RLACThe other ends of the two capacitors are respectively connected with a capacitor Co1Another terminal of (1) and a capacitor Co2One terminal of (D), diode D1Respectively connected with a capacitor Co2Another terminal of (1) and a resistor RLDCAnd the other end of the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296780.0A CN112366966A (en) | 2020-11-18 | 2020-11-18 | Single-switch half-bridge electric energy converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296780.0A CN112366966A (en) | 2020-11-18 | 2020-11-18 | Single-switch half-bridge electric energy converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112366966A true CN112366966A (en) | 2021-02-12 |
Family
ID=74533233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011296780.0A Pending CN112366966A (en) | 2020-11-18 | 2020-11-18 | Single-switch half-bridge electric energy converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112366966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448274A (en) * | 2022-04-12 | 2022-05-06 | 南京博兰得电子科技有限公司 | Three-phase single-stage resonant type electric energy conversion device and control method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008589A (en) * | 1996-03-05 | 1999-12-28 | California Institute Of Technology | Single-switch, high power factor, ac-to-ac power converters |
| US20050030778A1 (en) * | 2003-08-09 | 2005-02-10 | Phadke Vijay Gangadhar | Soft switched zero voltage transition full bridge converter |
| CN101499732A (en) * | 2009-01-20 | 2009-08-05 | 华南理工大学 | Single stage semi-bridge AC-DC converter |
| US20100271852A1 (en) * | 2009-04-28 | 2010-10-28 | Fuji Electric Systems Co., Ltd. | Power conversion circuit |
| US20110317452A1 (en) * | 2010-06-25 | 2011-12-29 | Gueorgui Iordanov Anguelov | Bi-directional power converter with regulated output and soft switching |
| CN103401461A (en) * | 2013-07-30 | 2013-11-20 | 浙江大学 | High-frequency boosting isolation inverter |
| CN103904923A (en) * | 2014-04-17 | 2014-07-02 | 南京航空航天大学 | High-gain high-frequency boosting and rectifying isolated converter based on hybrid rectifying bridge arm and switch capacitors |
| CN104810936A (en) * | 2015-05-14 | 2015-07-29 | 哈尔滨工业大学 | Wireless power supply device used for pipeline internal load |
| JP2016208693A (en) * | 2015-04-23 | 2016-12-08 | 住友電気工業株式会社 | Power conversion device |
| WO2017049179A1 (en) * | 2015-09-18 | 2017-03-23 | Murata Manufacturing Co., Ltd. | Converters with hold-up operation |
-
2020
- 2020-11-18 CN CN202011296780.0A patent/CN112366966A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008589A (en) * | 1996-03-05 | 1999-12-28 | California Institute Of Technology | Single-switch, high power factor, ac-to-ac power converters |
| US20050030778A1 (en) * | 2003-08-09 | 2005-02-10 | Phadke Vijay Gangadhar | Soft switched zero voltage transition full bridge converter |
| CN101499732A (en) * | 2009-01-20 | 2009-08-05 | 华南理工大学 | Single stage semi-bridge AC-DC converter |
| US20100271852A1 (en) * | 2009-04-28 | 2010-10-28 | Fuji Electric Systems Co., Ltd. | Power conversion circuit |
| US20110317452A1 (en) * | 2010-06-25 | 2011-12-29 | Gueorgui Iordanov Anguelov | Bi-directional power converter with regulated output and soft switching |
| CN103401461A (en) * | 2013-07-30 | 2013-11-20 | 浙江大学 | High-frequency boosting isolation inverter |
| CN103904923A (en) * | 2014-04-17 | 2014-07-02 | 南京航空航天大学 | High-gain high-frequency boosting and rectifying isolated converter based on hybrid rectifying bridge arm and switch capacitors |
| JP2016208693A (en) * | 2015-04-23 | 2016-12-08 | 住友電気工業株式会社 | Power conversion device |
| CN104810936A (en) * | 2015-05-14 | 2015-07-29 | 哈尔滨工业大学 | Wireless power supply device used for pipeline internal load |
| WO2017049179A1 (en) * | 2015-09-18 | 2017-03-23 | Murata Manufacturing Co., Ltd. | Converters with hold-up operation |
Non-Patent Citations (2)
| Title |
|---|
| MINH-KHAI NGUYEN等: "A Single-Phase Single-Stage Switched-Boost Inverter With Four Switcher", IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 33, no. 8, 20 September 2017 (2017-09-20), pages 6769 - 6781, XP011682524, DOI: 10.1109/TPEL.2017.2754547 * |
| 阚加荣等: "电流型降压桥式伪直流环节微逆变器", 电网技术, vol. 41, no. 1, 5 January 2017 (2017-01-05), pages 99 - 105 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448274A (en) * | 2022-04-12 | 2022-05-06 | 南京博兰得电子科技有限公司 | Three-phase single-stage resonant type electric energy conversion device and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8760128B2 (en) | Three-phase boost-buck power factor correction converter | |
| CN108988676B (en) | Single-stage isolated bidirectional AC-DC converter | |
| CN103259433B (en) | High-frequency isolation type tri-level inverter based on forward converter | |
| CN104852567A (en) | Totem-pole bridgeless power factor correction circuit of soft switch | |
| JP2000316281A (en) | 3-phase split boost converter with main stage and auxiliary stage | |
| CN110061650B (en) | Single-stage isolated three-phase bidirectional AC/DC converter and control method | |
| CN102158072B (en) | Power inverter of parallel-connected electric bridge type impedance network | |
| US20230223861A1 (en) | Electrical power converter | |
| CN114744895A (en) | Single-stage isolation resonant three-phase rectifier | |
| CN100530923C (en) | Single-phase and triple-phase impedance source booster and step-down DC/DC converter | |
| CN102185491B (en) | Serial and parallel connection electrical bridge type impedance network power converter | |
| CN112366966A (en) | Single-switch half-bridge electric energy converter | |
| CN106899203A (en) | Positive activation type five-electrical level inverter | |
| CN216122243U (en) | Isolated Delta rectifier based on phase-shifted full bridge | |
| CN114640257B (en) | Direct current conversion circuit, inverter and inverter midpoint balancing method | |
| CN216699852U (en) | Single-inductor double-output Delta rectifier | |
| Gorji et al. | Galvanically isolated switched-boost-based DC-DC converter | |
| CN214045457U (en) | Bidirectional DC-DC converter | |
| CN115441757A (en) | Five-level PWM rectifier and power supply equipment | |
| CN101257250B (en) | Transformer primary voltage nip bit three phase single-stage bridge type power factor correcting converter | |
| CN210958160U (en) | Soft switching circuit | |
| CN110798086B (en) | Three-level soft switching rectifying circuit | |
| CN107359803B (en) | Positive activation type high-frequency isolation three-level inverter | |
| CN110277923A (en) | A kind of soft switch in three electrical levels DC converter of Active control primary current shutdown | |
| CN214205359U (en) | Improved Delta type rectifier based on soft switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |