CN109194116A - A kind of half-bridge circuit parallel passive flow equalizing circuit - Google Patents
A kind of half-bridge circuit parallel passive flow equalizing circuit Download PDFInfo
- Publication number
- CN109194116A CN109194116A CN201811086675.7A CN201811086675A CN109194116A CN 109194116 A CN109194116 A CN 109194116A CN 201811086675 A CN201811086675 A CN 201811086675A CN 109194116 A CN109194116 A CN 109194116A
- Authority
- CN
- China
- Prior art keywords
- circuit
- current
- side winding
- bridge
- current transformer
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 40
- 238000011084 recovery Methods 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 21
- 230000035699 permeability Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- H02M3/00—Conversion of dc power input into dc power output
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Abstract
The invention discloses a kind of half-bridge circuit parallel passive flow equalizing circuits, belong to electrical application technology field.The respective half-bridge circuit circulating current that the present invention solves the problems, such as that half-bridge module circuit occurs when used in parallel is inconsistent.Suitable for all kinds of occasions using half-bridge structure circuit, the present invention has prevented the high stream chip of use cost, use cost can control very low, use scope is also relatively broad, particularly suitable in the output biggish power supply of electric current, easy to use, external circuits are simple and clear, additionally using flow chip, do not need additionally to power, and relatively using flow chip circuit for have higher stability in use.
Description
Technical field
The present invention relates to a kind of half-bridge circuit parallel passive flow equalizing circuits, belong to electrical application technology field.
Background technique
The method that current powerful switch power supply system is generally used using more power sources in parallel when in use.Similarly exist
It can only just be designed in power supply in the design production of large power supply in order to use separate unit power supply to export bigger power as far as possible
Power unit module inside middle parallel connection is high-power to realize.This method is one of the developing direction of current power technology, can
The modular power unit of parallel running has lot of advantages, allow low power power unit module by it is in parallel easily
Be combined into powerful power-supply system, capacity can be with arbitrary extension: second is that realizing the Redundancy Design of power-supply system, improving it can
By property: third is that use occasion is unrestricted, combine as needed, it is convenient, flexible.In principle, multiple power module unit parallel connection structures
At high power system, should as separate unit power supply, in input bus and output loading, except system output electricity
Pressure remains stable outer, moreover it is possible to long-term, trouble-free reliability service.It is born this requires power unit module each in system
Electricity, thermal stress are substantially suitable, that is to say, that, it is necessary to certain corresponding measure is taken, guarantees system not each power module list of reason
The difference of member carrying situation, causes vicious circle caused by electric heating imbalance, influences system performance and reliability service.
Summary of the invention
The present invention provides a kind of half-bridge circuit parallel passive flow equalizing circuits, for when solving half-bridge module circuit in parallel
Each module problem even by current unevenness.
The technical scheme is that a kind of half-bridge circuit parallel passive flow equalizing circuit, including N number of half-bridge module in parallel,
It is divided into two parts up and down by boundary of half-bridge module output midpoint M, each part is by HF current transformer circuit, remaining electricity
Flow leadage circuit composition；
The HF current transformer circuit includes HF current transformer, metal-oxide-semiconductor；The residual current leadage circuit includes electricity
Resistance, capacitor, fast recovery diode；
First side winding T1-1, the T1-2 of all HF current transformers of upper part ..., T1-N successively seal in respective place
Half-bridge module in, position upper end metal-oxide-semiconductor source electrode export and half-bridge module midpoint M between, all high-frequency electricals of upper part
Current transformer secondary side winding T2-1, T2-2 ... T2-N are in sequential series, the secondary side winding of the last one HF current transformer
The Same Name of Ends of the secondary side winding T2-1 of the non-same polarity of T2-N and first HF current transformer reconnects, and the last one
The non-same polarity of HF current transformer secondary side winding T2-N is connected to the cathode of DC power supply by a resistance R3；
First side winding T3-1, the T3-2 of all HF current transformers of lower part ... T3-N successively seals in respective place
In half-bridge module, position is between half-bridge module midpoint M and lower end metal-oxide-semiconductor grid, all high-frequency current mutual inductances of lower part
Device secondary side winding T4-1, T4-2 ... T4-N are in sequential series, the secondary side winding T4-N's of the last one HF current transformer
The Same Name of Ends of the secondary side winding T4-1 of non-same polarity and first HF current transformer reconnects, and the last one high-frequency electrical
The non-same polarity of current transformer secondary side winding T4-N is connected to the cathode of DC power supply by a resistance R4；
1 middle and upper part of half-bridge module divides residual current leadage circuit to be mainly made of resistance R1, capacitor C1 and fast recovery diode D1,
Fast recovery diode D1 anode is connected to the cathode of DC power supply, and resistance R1 is in parallel with capacitor C1, one end and fast recovery after parallel connection
Diode D1 cathode is connected, and the other end is connected to upper end metal-oxide-semiconductor Q1 source electrode after parallel connection；
1 middle-lower part residual current leadage circuit of half-bridge module is mainly made of resistance R2, capacitor C2 and fast recovery diode D2,
Resistance R2 is in parallel with capacitor C2, and fast recovery diode D2 anode is connect with lower end metal-oxide-semiconductor Q2 grid, fast recovery diode D2 cathode
It is connect with one end of resistance R2 and capacitor C2 after parallel connection, the other end of resistance R2 and capacitor C2 after parallel connection are connected to direct current
The anode in source；
In other half-bridge modules residual current leadage circuit connection type with the residual current leadage circuit phase in half-bridge module 1
Together.
The HF current transformer magnetic core is high magnetic permeability magnet ring.
The first side winding of the HF current transformer passes through high magnetic permeability magnet ring by connecting line and is formed.
The secondary side winding of the HF current transformer is wrapped on high magnetic permeability magnet ring by the conducting wire with insulation package
It is formed.
The reversed DC break down voltage value of fast recovery diode is greater than 2 times of direct current power source voltage.
The beneficial effects of the present invention are: the present invention solves the respective half-bridge that half-bridge module circuit occurs when used in parallel
The inconsistent problem of circuit circulating current.Suitable for all kinds of occasions using half-bridge structure circuit, the present invention prevented use at
This high stream chip, use cost can control very low, and use scope is also relatively broad, particularly suitable in output electric current
Easy to use in biggish power supply, external circuits are simple and clear, additionally do not need additionally to power using chip is flowed, and
Compared with use flow chip circuit for have higher stability in use.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention；
Fig. 2 is half-bridge module high-frequency current mutual inductor connection figure；
Fig. 3 is that band carries half-bridge circuit parallel passive flow equalizing circuit；
Fig. 4 is non-bringing onto load half-bridge circuit parallel passive flow equalizing circuit；
Fig. 5 be with load in the case where half-bridge module 1 upper part residual current bleed-off circuit figure；
Fig. 6 be with load in the case where half-bridge module 1 lower partial circuit current flowing loop diagram；
Fig. 7 is the lower part residual current bleed-off circuit figure of not half-bridge module 1 in the case where bringing onto load.
Specific embodiment
Embodiment 1: as shown in figs. 1-7, a kind of half-bridge circuit parallel passive flow equalizing circuit, including N number of half-bridge module in parallel,
It is divided into two parts up and down by boundary of half-bridge module output midpoint M, each part is by HF current transformer circuit, remaining electricity
Flow leadage circuit composition；
The HF current transformer circuit includes HF current transformer, metal-oxide-semiconductor；The residual current leadage circuit includes electricity
Resistance, capacitor, fast recovery diode；
First side winding T1-1, the T1-2 of all HF current transformers of upper part ..., T1-N successively seal in respective place
Half-bridge module in, position upper end metal-oxide-semiconductor source electrode export and half-bridge module midpoint M between, all high-frequency electricals of upper part
Current transformer secondary side winding T2-1, T2-2 ... T2-N are in sequential series, the secondary side winding of the last one HF current transformer
The Same Name of Ends of the secondary side winding T2-1 of the non-same polarity of T2-N and first HF current transformer reconnects, and the last one
The non-same polarity of HF current transformer secondary side winding T2-N is connected to the cathode of DC power supply by a resistance R3；
First side winding T3-1, the T3-2 of all HF current transformers of lower part ... T3-N successively seals in respective place
In half-bridge module, position is between half-bridge module midpoint M and lower end metal-oxide-semiconductor grid, all high-frequency current mutual inductances of lower part
Device secondary side winding T4-1, T4-2 ... T4-N are in sequential series, the secondary side winding T4-N's of the last one HF current transformer
The Same Name of Ends of the secondary side winding T4-1 of non-same polarity and first HF current transformer reconnects, and the last one high-frequency electrical
The non-same polarity of current transformer secondary side winding T4-N is connected to the cathode of DC power supply by a resistance R4；
1 middle and upper part of half-bridge module divides residual current leadage circuit to be mainly made of resistance R1, capacitor C1 and fast recovery diode D1,
Fast recovery diode D1 anode is connected to the cathode of DC power supply, and resistance R1 is in parallel with capacitor C1, one end and fast recovery after parallel connection
Diode D1 cathode is connected, and the other end is connected to upper end metal-oxide-semiconductor Q1 source electrode after parallel connection；
1 middle-lower part residual current leadage circuit of half-bridge module is mainly made of resistance R2, capacitor C2 and fast recovery diode D2,
Resistance R2 is in parallel with capacitor C2, and fast recovery diode D2 anode is connect with lower end metal-oxide-semiconductor Q2 grid, fast recovery diode D2 cathode
It is connect with one end of resistance R2 and capacitor C2 after parallel connection, the other end of resistance R2 and capacitor C2 after parallel connection are connected to direct current
The anode in source；
In other half-bridge modules residual current leadage circuit connection type with the residual current leadage circuit phase in half-bridge module 1
Together.
It is high magnetic permeability magnet ring it is possible to further which the HF current transformer magnetic core is arranged.
High magnetic permeability magnetic is passed through by connecting line it is possible to further which the first side winding of the HF current transformer is arranged
Ring is formed.
It is wound it is possible to further which the secondary side winding of the HF current transformer is arranged by the conducting wire with insulation package
It is formed on high magnetic permeability magnet ring.
It is possible to further which 2 times of the reversed DC break down voltage value of the fast recovery diode greater than direct current power source voltage are arranged
(i.e. all reversed DC break down voltage values of fast recovery diode used of fast recovery diode D1, D2 and other modules are all larger than directly
2 times for flowing supply voltage).
All HF current transformer parameters are identical with specification.The primary side of HF current transformer and secondary side line
Circle inductance each depends on the equal stream error precision of circuit.
About stream:
In the half-bridge module parallel connection of not flow equalizing circuit, since each half-bridge module parameter therein in parallel cannot reach complete
Unanimously all to result in the having a certain difference property of current value that each half-bridge module flows through after being powered, this flow equalizing circuit is each
Corresponding HF current transformer is accessed in half-bridge module, by by the secondary winding of current transformer in each half-bridge module
It is sequentially connected in series, the HF current transformer secondary winding after series connection becomes an entirety, thus indirectly high-frequency current mutual inductance
Device first winding is connected according to certain relationship.Current transformer after the special connection of this in work is only to differential mode electricity in circuit
Stream plays inhibition, and does not influence on common mode current, primary by an available HF current transformer after calculating
The inductance value of winding, thus by the range of the unbalanced current limit of all half-bridge modules in parallel a to very little, thus finally
Realize the stream effect of circuital current.
If Fig. 5 is that half-bridge circuit in parallel upper part residual current of half-bridge module 1 with load is released back
Lu Tu, circuit is with load (such as Fig. 3), and half-bridge circuit upper end metal-oxide-semiconductor Q1 in parallel is turned off, lower end metal-oxide-semiconductor Q2 is opened
If still there are also differential-mode currents to exist for the HF current transformer first siding ring of upper part when logical, differential-mode current is released
Channel is the residual current leadage circuit of upper part.Differential-mode current direction is in upper part HF current transformer first siding ring
For from top to bottom, differential-mode current is gradually consumed totally by the circuit of upper part residual current leadage circuit.
If Fig. 6 is that half-bridge circuit in parallel lower partial circuit current flowing of half-bridge module 1 with load is returned
Lu Tu, circuit is with load (such as Fig. 3), and half-bridge circuit upper end metal-oxide-semiconductor Q1 in parallel is turned off, lower end metal-oxide-semiconductor Q2 is opened
When logical, Q2 plays the role of afterflow, continues as electric current present in original circuit and provides circuit.
If Fig. 7 is that half-bridge circuit lower part residual current of half-bridge module 1 in the case where not bringing onto load in parallel is released back
Lu Tu, under no-load condition (such as Fig. 4), if half-bridge circuit upper end metal-oxide-semiconductor Q1 in parallel is opened, lower end metal-oxide-semiconductor Q2 shutdown when lower part
Dividing HF current transformer first siding ring, still there are also differential-mode currents to exist, then the leakage path of differential-mode current is lower part
First-grade protection circuit.Differential-mode current direction is in lower part current transformer first siding ring for from top to bottom, differential-mode current is logical
The circuit for crossing down part first-grade protection circuit is gradually consumed totally.
Fig. 2,3,4 are only illustrated half-bridge module 1, identical for other half-bridge module working principles.
Above in conjunction with attached drawing, the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (5)
1. a kind of half-bridge circuit parallel passive flow equalizing circuit, it is characterised in that: including N number of half-bridge module in parallel, with half-bridge module
Output midpoint M is that boundary is divided into two parts up and down, and each part is by HF current transformer circuit, residual current leadage circuit
Composition；
The HF current transformer circuit includes HF current transformer, metal-oxide-semiconductor；The residual current leadage circuit includes electricity
Resistance, capacitor, fast recovery diode；
First side winding T1-1, the T1-2 of all HF current transformers of upper part ..., T1-N successively seal in respective place
Half-bridge module in, position upper end metal-oxide-semiconductor source electrode export and half-bridge module midpoint M between, all high-frequency electricals of upper part
Current transformer secondary side winding T2-1, T2-2 ... T2-N are in sequential series, the secondary side winding of the last one HF current transformer
The Same Name of Ends of the secondary side winding T2-1 of the non-same polarity of T2-N and first HF current transformer reconnects, and the last one
The non-same polarity of HF current transformer secondary side winding T2-N is connected to the cathode of DC power supply by a resistance R3；
First side winding T3-1, the T3-2 of all HF current transformers of lower part ... T3-N successively seals in respective place
In half-bridge module, position is between half-bridge module midpoint M and lower end metal-oxide-semiconductor grid, all high-frequency current mutual inductances of lower part
Device secondary side winding T4-1, T4-2 ... T4-N are in sequential series, the secondary side winding T4-N's of the last one HF current transformer
The Same Name of Ends of the secondary side winding T4-1 of non-same polarity and first HF current transformer reconnects, and the last one high-frequency electrical
The non-same polarity of current transformer secondary side winding T4-N is connected to the cathode of DC power supply by a resistance R4；
1 middle and upper part of half-bridge module divides residual current leadage circuit to be mainly made of resistance R1, capacitor C1 and fast recovery diode D1,
Fast recovery diode D1 anode is connected to the cathode of DC power supply, and resistance R1 is in parallel with capacitor C1, one end and fast recovery after parallel connection
Diode D1 cathode is connected, and the other end is connected to upper end metal-oxide-semiconductor Q1 source electrode after parallel connection；
1 middle-lower part residual current leadage circuit of half-bridge module is mainly made of resistance R2, capacitor C2 and fast recovery diode D2,
Resistance R2 is in parallel with capacitor C2, and fast recovery diode D2 anode is connect with lower end metal-oxide-semiconductor Q2 grid, fast recovery diode D2 cathode
It is connect with one end of resistance R2 and capacitor C2 after parallel connection, the other end of resistance R2 and capacitor C2 after parallel connection are connected to direct current
The anode in source；
In other half-bridge modules residual current leadage circuit connection type with the residual current leadage circuit phase in half-bridge module 1
Together.
2. half-bridge circuit parallel passive flow equalizing circuit according to claim 1, it is characterised in that: the high-frequency current mutual inductance
Device magnetic core is high magnetic permeability magnet ring.
3. half-bridge circuit parallel passive flow equalizing circuit according to claim 1, it is characterised in that: the high-frequency current mutual inductance
The first side winding of device passes through high magnetic permeability magnet ring by connecting line and is formed.
4. half-bridge circuit parallel passive flow equalizing circuit according to claim 1, it is characterised in that: the high-frequency current mutual inductance
The secondary side winding of device is wrapped on high magnetic permeability magnet ring by the conducting wire with insulation package and is formed.
5. half-bridge circuit parallel passive flow equalizing circuit according to claim 1, it is characterised in that: the fast recovery diode
Reversed DC break down voltage value is greater than 2 times of direct current power source voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086675.7A CN109194116B (en) | 2018-09-18 | 2018-09-18 | Half-bridge circuit parallel passive current equalizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086675.7A CN109194116B (en) | 2018-09-18 | 2018-09-18 | Half-bridge circuit parallel passive current equalizing circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109194116A true CN109194116A (en) | 2019-01-11 |
| CN109194116B CN109194116B (en) | 2024-01-26 |
Family
ID=64911866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086675.7A Active CN109194116B (en) | 2018-09-18 | 2018-09-18 | Half-bridge circuit parallel passive current equalizing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109194116B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565845A (en) * | 2024-01-16 | 2024-02-20 | 千顾汽车科技(江苏)有限公司 | EPB drive circuit based on QM pre-drive chip |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2305125A1 (en) * | 1999-04-16 | 2000-10-16 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Circuit arrangement with half-bridge |
| CA2434108A1 (en) * | 2002-07-02 | 2004-01-02 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Drive for a half-bridge inverter |
| CN102545594A (en) * | 2012-02-27 | 2012-07-04 | 清华大学 | Bidirectional power source of small spherical Tokamak ohm magnet |
| CN107294169A (en) * | 2017-07-17 | 2017-10-24 | 昆明理工大学 | A kind of bicycle parking cabinet control circuit, its wireless charging device and application |
| CN209217947U (en) * | 2018-09-18 | 2019-08-06 | 昆明理工大学 | A kind of half-bridge circuit parallel passive flow equalizing circuit |
-
2018
- 2018-09-18 CN CN201811086675.7A patent/CN109194116B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2305125A1 (en) * | 1999-04-16 | 2000-10-16 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Circuit arrangement with half-bridge |
| CA2434108A1 (en) * | 2002-07-02 | 2004-01-02 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Drive for a half-bridge inverter |
| CN102545594A (en) * | 2012-02-27 | 2012-07-04 | 清华大学 | Bidirectional power source of small spherical Tokamak ohm magnet |
| CN107294169A (en) * | 2017-07-17 | 2017-10-24 | 昆明理工大学 | A kind of bicycle parking cabinet control circuit, its wireless charging device and application |
| CN209217947U (en) * | 2018-09-18 | 2019-08-06 | 昆明理工大学 | A kind of half-bridge circuit parallel passive flow equalizing circuit |
Non-Patent Citations (1)
| Title |
|---|
| 梁雨林 等: "输入并联输出并联半桥变换器均流分析和试验", 低压电器, no. 18, pages 36 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565845A (en) * | 2024-01-16 | 2024-02-20 | 千顾汽车科技(江苏)有限公司 | EPB drive circuit based on QM pre-drive chip |
| CN117565845B (en) * | 2024-01-16 | 2024-04-05 | 千顾汽车科技(江苏)有限公司 | EPB drive circuit based on QM pre-drive chip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109194116B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9199327B2 (en) | Portable IGBT arc welding machine | |
| CN103780081B (en) | The equal current converter of alternating expression LLC | |
| CN103487732B (en) | Alterating and direct current compression testing device and method between the valve end of modular multilevel converter valve | |
| CN101228682B (en) | Powering unit with full bridge and wide adjusting range circuit | |
| CN105322798B (en) | Multiple Output Flyback Converter | |
| CN106990309A (en) | A kind of converter valve Tests at Steady State device and method of use AC-testing supply | |
| CN103929074B (en) | Single Stage Ac/dc Converter | |
| CN107294391A (en) | A kind of power conversion module and the power-supply system being made up of the power conversion module | |
| Hu et al. | A New Single-Phase $\boldsymbol {\Pi}-\text {Type} $5-Level Inverter Using 3-Terminal Switch-Network | |
| CN207732627U (en) | A kind of IGBT driving powers of Width funtion input | |
| CN103107728A (en) | Voltage and current mixed source type grid-connected inverter topology | |
| CN105281545A (en) | Flexible direct-current converter valve and bridge arm damping module energy taking circuit thereof | |
| CN209217947U (en) | A kind of half-bridge circuit parallel passive flow equalizing circuit | |
| CN103336163B (en) | Converter-valve AC/DC voltage test circuit of flexible high-voltage DC transmission system | |
| CN109194116A (en) | A kind of half-bridge circuit parallel passive flow equalizing circuit | |
| CN202231621U (en) | Shunt-wound structure of current transformer | |
| WO2018024035A1 (en) | Indicating circuit for switching power supply, and using method therefor | |
| CN205283404U (en) | New fly -Buck -Boost isolated form DC -DC converter circuit topology | |
| CN102882411B (en) | Single-phase seven-level inverter | |
| CN105281575B (en) | A kind of equalizer circuit | |
| CN206211839U (en) | A kind of symmetric form dual output Z source converters | |
| CN105356747B (en) | A kind of power modules of flexible direct-current transmission converter | |
| CN105490548A (en) | Switching power device | |
| CN107482884A (en) | One kind input Pressure and Control circuit | |
| CN208208756U (en) | A kind of power module of novel package structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |