CN206060569U - A kind of driving power supply circuit of three-phase VIENNA rectifier - Google Patents
A kind of driving power supply circuit of three-phase VIENNA rectifier Download PDFInfo
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- CN206060569U CN206060569U CN201620904511.0U CN201620904511U CN206060569U CN 206060569 U CN206060569 U CN 206060569U CN 201620904511 U CN201620904511 U CN 201620904511U CN 206060569 U CN206060569 U CN 206060569U
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Abstract
This utility model provides a kind of driving power supply circuit of three-phase VIENNA rectifier, including power supply VCC, Pulse Width Control chip, transformator, switching tube etc..Pulse Width Control chip output pulse drive signal drives first switch pipe Q1 and second switch pipe Q2, by VCC power inverters into high frequency alternating current, high-frequency pulse signal is transferred to by secondary by transformator, former limit coupled capacitor, AC signal is changed into unidirectional current by Jing secondary coupled capacitors, commutation diode and output filter capacitor.Each power conversion unit is separate, does not interfere with each other.
Description
Technical field
This utility model is related to a kind of driving power supply circuit of three-phase VIENNA rectifier.
Background technology
At present, State Grid Corporation of China promotes the development of electric motorcar charging station energetically, and the demand for development of electrokinetic cell is high-power
Electric automobile battery charger follow-up.However, the larger charger of power brings larger harmonic pollution to electrical network.VIENNA
Commutator is because switching tube quantity is few, power factor is high, current harmonic content is low, bridge arm switching tube is without dead zone voltage, control circuit
Simple the advantages of, is used widely.
VIENNA rectifier needs reliable and stable driving power supply to provide energy, Application No. for its drive module
The Chinese patent document of CN201310748158.2 adopts double-transistor flyback multiple-output electric power circuit, this circuit requirement switching tube
It is pressure higher, or need multiple switch pipe connect, control get up it is relatively difficult to achieve；Meanwhile, the quantity of transformer secondary winding
Excessively, complicated transformer device structure, volume increase are caused, pin number increases, reliability is reduced；And vice-side winding is wound on together
On one transformer core, heating, insulation, electric equipment compartment away from and creep age distance all there is potential safety hazard.
Utility model content
To solve the above problems, this utility model provides a kind of driving power supply circuit of three-phase VIENNA rectifier, uses
The complex structure of multiple-channel output accessory power supply in existing three-phase VIENNA rectifier is solved the problems, such as.
A kind of driving power supply circuit of three-phase VIENNA rectifier, including at least two-way rectifying output circuit 7；Its feature
For：Also include pulse generating circuit 1 and the power conversion circuit 2 corresponding with per rectifying output circuit all the way, the pulse is sent out
Raw circuit 1 includes power supply VCC, Pulse Width Control chip 3 and push-pull circuit；The push-pull circuit includes first switch pipe Q1 and second
Switching tube Q2；The output port OUT of the Pulse Width Control chip is connected with the input 4 of the push-pull circuit, and is controlled described
Push-pull circuit；Described each power conversion circuit includes a pulse transformer, and the former limit of each pulse transformer is in parallel, and
It is connected with the outfan 5 of push-pull circuit.
Further, the primary and secondary side of the pulse transformer is respectively connected with decoupling capacitor.
Further, the rectifying output circuit includes commutation diode and output filter capacitor.
Further, also including a fly-wheel diode in parallel with rectifying output circuit.
Further, in the push-pull circuit first switch pipe Q1 be NPN type triode, second switch pipe Q2 be positive-negative-positive
Audion, first switch pipe Q1 are linked together with second switch pipe Q2 base stages, form the push-pull circuit input 4；First
The emitter stage of switching tube Q1 connects the colelctor electrode of second switch pipe Q2, forms the push-pull circuit outfan 5.
This utility model provides a kind of driving power supply circuit of three-phase VIENNA rectifier, is constituted using two switching tubes
Push-pull circuit, provides the alternating current of high frequency for transformator；Multiple independent pulse transformers are adopted simultaneously, are efficiently solved existing
In technology, transformer secondary winding is more, complex manufacturing technology, the problem of operational reliability difference.
Description of the drawings
Fig. 1 is VIENNA driving power supply circuit theory diagrams.
Specific embodiment
This utility model provides a kind of driving power supply circuit of three-phase VIENNA rectifier, including power supply VCC, pulse control
Coremaking piece, transformator, switching tube etc..Pulse Width Control chip output pulse drive signal drives first switch pipe Q1 and second switch
High-frequency pulse signal, by VCC power inverters into the alternating current of high frequency, is transferred to by pipe Q2 by transformator, former limit coupled capacitor
AC signal is changed into unidirectional current by secondary, Jing secondary coupled capacitors, commutation diode and output filter capacitor.Each power turns
Change unit separate, do not interfere with each other.
The utility model is described in more detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of driving power supply circuit of three-phase VIENNA rectifier, including at least two-way rectifying output circuit
7, also including pulse generating circuit 1 and the power conversion circuit 2 corresponding with per rectifying output circuit all the way, the pulse generation
Circuit 1 includes power supply VCC, Pulse Width Control chip 3 and push-pull circuit, and the push-pull circuit includes that first switch pipe Q1 and second is opened
Pipe Q2 is closed, Pulse Width Control chip output mouth OUT is connected with push-pull circuit input 4, and controls the push-pull circuit, it is described every
Individual power conversion circuit includes a pulse transformer, and the former limit of each pulse transformer is in parallel, and with push-pull circuit
Outfan 5 connects.
Specifically, the primary and secondary side of the pulse transformer is respectively connected with decoupling capacitor；The rectifying output circuit is equal
Including commutation diode and output filter capacitor；Additionally, it is in parallel with rectifying output circuit to be additionally provided with a fly-wheel diode.
Specifically, in the push-pull circuit first switch pipe Q1 be NPN type triode, second switch pipe Q2 be positive-negative-positive three
Pole pipe, first switch pipe Q1 are linked together with second switch pipe Q2 base stages, form the push-pull circuit input 4；First opens
The emitter stage for closing pipe Q1 connects the colelctor electrode of second switch pipe Q2, forms the push-pull circuit outfan 5；Other first switch pipe
Can also for N-channel MOS pipe, while second switch pipe Q2 is P-channel metal-oxide-semiconductor, first switch pipe Q1 and second switch pipe Q2's
Grid links together, and forms push-pull circuit input 4；The source electrode of first switch pipe Q1 connects the drain electrode of second switch pipe Q2,
Form push-pull circuit outfan 5；Push-pull circuit is different using the input polarity of opposed polarity switching tube, is encouraged with a signal
The switching tube of two opposed polarities, can so have two equal in magnitude, opposite in phase pumping signals.
In addition, it is in parallel with power supply VCC to be additionally provided with one group of shunt capacitance, for stabilized power source VCC voltages；Also two in parallel
Diode be connected between the earth terminal GND of Pulse Width Control chip 3 and outfan OUT；It is additionally provided with a Diode series to exist
Between Pulse Width Control chip output OUT and push-pull circuit input 4, metering function is played.
Claims (5)
1. a kind of driving power supply circuit of three-phase VIENNA rectifier, including at least two-way rectifying output circuit (7)；Its feature
For：Also include pulse generating circuit (1) and the power conversion circuit (2) corresponding with per rectifying output circuit all the way, the arteries and veins
There is circuit (1) including power supply VCC, Pulse Width Control chip (3) and push-pull circuit in punching, the push-pull circuit includes first switch pipe
(Q1) and second switch pipe (Q2), Pulse Width Control chip output mouth (OUT) is connected with push-pull circuit, and recommends electricity described in controlling
Road, described each power conversion circuit include a pulse transformer, and the former limit of each pulse transformer is in parallel, and with push away
Draw outfan (5) connection of circuit.
2. the driving power supply circuit of a kind of three-phase VIENNA rectifier according to claim 1, it is characterized by：The pulse
The primary and secondary side of transformator is respectively connected with decoupling capacitor.
3. the driving power supply circuit of a kind of three-phase VIENNA rectifier according to claim 1, it is characterized by：The rectification
Output circuit includes commutation diode and output filter capacitor.
4. the driving power supply circuit of a kind of three-phase VIENNA rectifier according to claim 1, it is characterized by：Including one
The fly-wheel diode in parallel with the rectifying output circuit.
5. the driving power supply circuit of a kind of three-phase VIENNA rectifier according to claim 1, it is characterized by：It is described to recommend
In circuit first switch pipe (Q1) be NPN type triode, second switch pipe (Q2) be PNP type triode, first switch pipe (Q1)
Link together with second switch pipe (Q2) base stage, form the push-pull circuit input (4)；The transmitting of first switch pipe (Q1)
The colelctor electrode of pole connection second switch pipe (Q2), forms the push-pull circuit outfan (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904511.0U CN206060569U (en) | 2016-08-19 | 2016-08-19 | A kind of driving power supply circuit of three-phase VIENNA rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904511.0U CN206060569U (en) | 2016-08-19 | 2016-08-19 | A kind of driving power supply circuit of three-phase VIENNA rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060569U true CN206060569U (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620904511.0U Active CN206060569U (en) | 2016-08-19 | 2016-08-19 | A kind of driving power supply circuit of three-phase VIENNA rectifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378990A (en) * | 2018-12-08 | 2019-02-22 | 中国科学院宁波材料技术与工程研究所 | A kind of drive electric power unit |
-
2016
- 2016-08-19 CN CN201620904511.0U patent/CN206060569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378990A (en) * | 2018-12-08 | 2019-02-22 | 中国科学院宁波材料技术与工程研究所 | A kind of drive electric power unit |
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