CN207399039U - A kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle - Google Patents
A kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle Download PDFInfo
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- CN207399039U CN207399039U CN201721567005.8U CN201721567005U CN207399039U CN 207399039 U CN207399039 U CN 207399039U CN 201721567005 U CN201721567005 U CN 201721567005U CN 207399039 U CN207399039 U CN 207399039U
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Abstract
The utility model provides a kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle, wherein, isolated power supply circuit includes public power and three single-phase isolated power supply sub-circuits, the isolated power supply sub-circuit includes recommending control circuit and the single-phase bridge arm isolated power supply sub-circuit equal with single-phase IGBT drive circuit quantity in three-phase bridge IGBT Parallel Control circuits, and the single-phase bridge arm isolated power supply sub-circuit includes recommending switching tube circuit, isolating transformer and voltage tripler rectifier circuit.The isolated power supply circuit that the utility model embodiment provides has the advantages that number of power sources is few, small and stability is high.
Description
Technical field
The utility model is related to technical field of vehicle more particularly to a kind of isolated power supply circuit, using isolated power supply electricity
The three-phase bridge IGBT Parallel Controls circuit on road and the vehicle of application three-phase bridge IGBT Parallel Control circuits.
Background technology
Inside the vehicle in circuit, due to the voltage and current in power driving circuit compared to control circuit voltage and
Electric current is much greater, and power driving circuit can generate electromagnetic interference.Therefore, in order to make control circuit from power drive electricity
The electromagnetic interference on road, it is ensured that the reliability of control circuit and power driving circuit and control circuit are subjected to electrical isolation.
In full-bridge or half-bridge circuit, the driving power of upper and lower half-bridge is mutually isolated, but due to drive integrated circult
Do not integrate isolated power supply, it is therefore desirable to which outside provides isolation drive power supply.In the prior art, provided for three full-bridge circuits
The mode of six tunnel driving powers has：Six road separated transformer isolated power supplies, six winding output isolated power supply of single phase transformer, monotropic pressure
Bridge independently descends bridge to share the modes such as four road output isolated power supplies on device, wherein, although six road separated transformer isolated power supply technologies
Fairly simple but number of devices is more, circuit cost is high；The design difficulty of six winding output isolated power supply of single phase transformer is high, transformation
Winding quantity inside device is more, causes volume of transformer larger；Bridge independently descends bridge to share four tunnels output isolation electricity on single phase transformer
The similary manufacture difficulty in source is high, and the voltage that can be exported under a winding during bridge load variation to other windings can have an impact, electricity
There are destabilizing factors on road.
In any of the above mode, the problem of difficulty is high, volume of transformer is big, circuit cost is high low with stability is designed and produced
The solution do not got well.
Utility model content
The utility model provides a kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle, to solve
Isolation driving power designs and produces difficulty height in bridge circuit at present, volume of transformer is big, circuit cost is high low with stability
Problem.
The utility model provides a kind of isolated power supply circuit, applied to the IGBT in three-phase bridge IGBT Parallel Control circuits
Driving circuit, including public power and three single-phase isolated power supply sub-circuits, the isolated power supply sub-circuit includes recommending control
Circuit and the single-phase bridge arm isolated power supply equal with single-phase IGBT drive circuit quantity in three-phase bridge IGBT Parallel Control circuits
Sub-circuit, the single-phase bridge arm isolated power supply sub-circuit include recommending switching tube circuit, isolating transformer and voltage tripler rectifier electricity
Road, wherein,
The isolating transformer includes the primary coil and secondary coil that intercouple, wherein, the primary coil includes
The Same Name of Ends of first primary coil and the second primary coil, the different name end of first primary coil and second primary coil
Anode with the public power is connected；
The switching tube circuit of recommending includes the first primary coil and first switch pipe being series at the public power two
It the first switch circuit at end and the second primary coil and second switch pipe is series at the second of the public power both ends opens
Powered-down road；
The input terminal for recommending control circuit is electrically connected with the public power, the control terminal of the first switch pipe with
The the first output terminal electrical connection for recommending control circuit, the control terminal of the second switch pipe and the control circuit of recommending
Second output terminal is electrically connected；
Correspondence is electrically connected two input terminals of the voltage tripler rectifier circuit with the both ends of the secondary coil respectively, described
The output terminal of voltage tripler rectifier circuit is used to be electrically connected with the power supply terminal of the IGBT drive circuit.
Optionally, the voltage tripler rectifier circuit includes the first capacitance, the second capacitance, the 3rd capacitance, the first diode, the
Two diodes, the 3rd diode and three output terminals, wherein, the cathode of first capacitance and the first end of the secondary coil
Electrical connection, the anode of first capacitance are electrically connected with the anode of the first diode, the cathode of the first diode and described second
The anode electrical connection of capacitance, the cathode of second capacitance are electrically connected with the second end of the secondary coil, the two or two pole
The anode of pipe is electrically connected with the second end of the secondary coil, the anode of the cathode of second diode and first capacitance
Electrical connection, the anode of the 3rd capacitance are electrically connected with the cathode of second capacitance, the cathode and the 3rd of the 3rd capacitance
The anode electrical connection of diode, the cathode of the 3rd diode are electrically connected with the first end of the secondary coil.
The utility model also provides a kind of three-phase bridge IGBT Parallel Control circuits, including IGBT drive circuit and every
From power circuit, the isolated power supply electric power system includes public power and three single-phase isolated power supply sub-circuits, described single-phase
Isolated power supply sub-circuit includes recommending control circuit and drives electricity with single-phase IGBT in three-phase bridge IGBT Parallel Control circuits
The equal single-phase bridge arm separaant circuit of way amount, the single-phase bridge arm isolated power supply sub-circuit and the IGBT drive circuit one
One corresponds to and is connected, wherein, the single-phase bridge arm isolated power supply sub-circuit includes recommending switching tube circuit, isolating transformer and three times
Voltage rectifier,
The isolating transformer includes the primary coil and secondary coil that intercouple, wherein, the primary coil includes
The Same Name of Ends of first primary coil and the second primary coil, the different name end of first primary coil and second primary coil
Anode with the public power is connected；
The switching tube circuit of recommending includes the first primary coil and first switch pipe being series at the public power two
It the first switch circuit at end and the second primary coil and second switch pipe is series at the second of the public power both ends opens
Powered-down road；
The input terminal for recommending control circuit is electrically connected with the public power, the control terminal of the first switch pipe with
The the first output terminal electrical connection for recommending control circuit, the control terminal of the second switch pipe and the control circuit of recommending
Second output terminal is electrically connected；
Correspondence is electrically connected two input terminals of the voltage tripler rectifier circuit with the both ends of the secondary coil respectively, described
The output terminal of voltage tripler rectifier circuit is used to be electrically connected with the power supply terminal of the IGBT drive circuit.
Optionally, the voltage tripler rectifier circuit includes the first capacitance, the second capacitance, the 3rd capacitance, the first diode, the
Two diodes, the 3rd diode and three output terminals, wherein, the cathode of first capacitance and the first end of the secondary coil
Electrical connection, the anode of first capacitance are electrically connected with the anode of the first diode, the cathode of the first diode and described second
The anode electrical connection of capacitance, the cathode of second capacitance are electrically connected with the second end of the secondary coil, the two or two pole
The anode of pipe is electrically connected with the second end of the secondary coil, the anode of the cathode of second diode and first capacitance
Electrical connection, the anode of the 3rd capacitance are electrically connected with the cathode of second capacitance, the cathode and the 3rd of the 3rd capacitance
The anode electrical connection of diode, the cathode of the 3rd diode are electrically connected with the first end of the secondary coil.
Optionally, the IGBT drive circuit includes the first triode, the second triode and resistance, first triode
Collector be electrically connected with the cathode of first diode, the emitter of first triode and second triode
Emitter is electrically connected, and the collector of second triode is electrically connected with the anode of the 3rd diode, one end of the resistance and
The emitter electrical connection of first triode, the other end of the resistance with the gate pole of IGBT for being electrically connected, the 3rd capacitance
Anode for being electrically connected with the emitter of IGBT.
The utility model also provides a kind of vehicle, including three-phase bridge IGBT Parallel Control circuits as described above.
In the utility model embodiment, single-phase bridge arm isolated power supply sub-circuit is in three-phase bridge IGBT Parallel Control circuits
Each IGBT drive circuit power supply when, multiple single-phase isolated power supply sub-circuits share a public power, and the quantity of power supply is few,
Reduce product cost；To each IGBT drive circuit, correspondence is designed with isolating transformer respectively, avoids single transformer body
The problem of product occupies greatly very much product space；What the power supply of each IGBT drive circuit was mutually isolated, avoid wherein one
Winding load changes and influences the situation of other windings, improves the stability of integrated circuit.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, the utility model embodiment will be retouched below
Attached drawing is briefly described needed in stating, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is single-phase bridge arm isolated power supply sub-circuit in a kind of isolated power supply circuit that the utility model embodiment provides
Structure diagram；
Fig. 2 is a kind of structure diagram for three phase full bridge IGBT Parallel Control circuits that the utility model embodiment provides；
Fig. 3 is IGBT drive circuit in a kind of three-phase bridge IGBT Parallel Control circuits that the utility model embodiment provides
Structure diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is the implementation of the utility model part of the embodiment rather than whole
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of isolated power supply electric power system provided by the utility model, in parallel applied to three-phase bridge IGBT
IGBT drive circuit in control circuit, including public power and three single-phase isolated power supply sub-circuits 100, the isolated power supply
Sub-circuit 100 include recommend control circuit 10 and with single-phase IGBT drive circuit quantity in three-phase bridge IGBT Parallel Control circuits
Equal single-phase bridge arm isolated power supply sub-circuit 20, the single-phase bridge arm isolated power supply sub-circuit 20 include recommending switching tube circuit
21st, isolating transformer 22 and voltage tripler rectifier circuit 23, wherein,
The isolating transformer 22 includes the primary coil and secondary coil that intercouple, wherein, the primary coil bag
Include the first primary coil and the second primary coil, the different name end of first primary coil and second primary coil it is of the same name
The anode with the public power is held to be connected；
The switching tube circuit 21 of recommending includes the first primary coil and first switch pipe being series at the public power
The first switch circuit at both ends and the second primary coil and second switch pipe are series at the second of the public power both ends
On-off circuit；
The input terminal for recommending control circuit 10 is electrically connected with the public power, the control terminal of the first switch pipe
It is electrically connected with first output terminal for recommending control circuit 10, the control terminal of the second switch pipe recommends control electricity with described
The second output terminal electrical connection on road 10；
Correspondence is electrically connected two input terminals of the voltage tripler rectifier circuit 23 with the both ends of the secondary coil respectively, institute
The output terminal of voltage tripler rectifier circuit 23 is stated for being electrically connected with the power supply terminal of the IGBT drive circuit.
In the present embodiment, the first output terminal and second output terminal of recommending control circuit 10 are alternately exported by default duty cycle
Pulse-width signal, so as to which the conducting of first switch pipe, the shut-off of second switch pipe or the shut-off of first switch pipe, second switch pipe be made to lead
It is logical, first switch circuit and second switch circuit is in other words namely made to be alternately produced electric current.The different name of first primary coil
Anode of the Same Name of Ends of end and the second primary coil with the common unit is connected, therefore the first primary coil and the second primary
The current direction of coil is opposite.Under the magnetic field being alternately produced in primary coil, secondary coil is alternately produced two opposite sensings
Electromotive force for voltage tripler rectifier circuit 23 provides alternating current, and after 23 rectification of voltage tripler rectifier circuit, output terminal is IGBT drivings
The direct current of circuit with stable.
In the utility model embodiment, single-phase bridge arm isolated power supply sub-circuit 20 is to three-phase bridge IGBT Parallel Control circuits
In each IGBT drive circuit power supply when, multiple single-phase isolated power supply sub-circuits 100 share a public power, reduce electricity
The quantity in source, reduces product cost；To each IGBT drive circuit, correspondence is designed with isolating transformer 22 respectively, avoids list
A volume of transformer occupies greatly very much the problem of product space；What the power supply of each IGBT drive circuit was mutually isolated, it keeps away
Exempt from wherein winding load variation and influenced the situation of other windings, improve the stability of integrated circuit.
Optionally, the voltage tripler rectifier circuit 24 includes the first capacitance C1, the second capacitance C2, the 3rd capacitance C3, first
Diode D1, the second diode D2, the 3rd diode D3 and three output terminals, wherein, the cathode of the first capacitance C1 and institute
The first end electrical connection of secondary coil is stated, the anode of the first capacitance C1 is electrically connected with the anode of the first diode D1, and first
The cathode of diode D1 is electrically connected with the anode of the second capacitance C2, cathode and the secondary coil of the second capacitance C2
Second end electrical connection, the anode of the second diode D2 is electrically connected with the second end of the secondary coil, the described 2nd 2
The cathode of pole pipe D2 is electrically connected with the anode of the first capacitance C1, the anode of the 3rd capacitance C3 and the second capacitance C2
Cathode electrical connection, the cathode of the 3rd capacitance C3 is electrically connected with the anode of the 3rd diode D3, the 3rd diode D3
Cathode be electrically connected with the first end of the secondary coil.
In the present embodiment, in the case where the first primary coil and the second primary coil are alternately produced magnetic field, secondary coil alternately produces
Two opposite induced electromotive forces are given birth to provide alternating current for voltage tripler rectifier circuit, when the second primary coil generates magnetic field,
Second diode and the 3rd diode current flow, the cut-off of the first diode, the first capacitance and the 3rd capacitance are charged to Vout；First
When primary coil generates magnetic field, the first diode current flow, the second diode and the cut-off of the 3rd diode, the second capacitance are charged to
2Vout.In the present embodiment, after 24 rectification of voltage tripler rectifier circuit, output terminal includes cathode output end, cathode output end and public affairs
End altogether, using the anode of second capacitance as cathode output end, the cathode of the 3rd capacitance is as cathode output end, the second capacitance
As common port between the 3rd capacitance, therefore, the voltage that can obtain cathode output end is 2Vout, cathode output end-
Vout, so as to provide stable three times straightening galvanic electricity for IGBT drive circuit.In the present embodiment, voltage tripler rectifier circuit 24 is just
Pole output terminal output voltage is+15V, and cathode output end output voltage is -8V.
Fig. 2 is please referred to, the utility model additionally provides a kind of three-phase bridge IGBT Parallel Control circuits, including IGBT
Driving circuit and isolated power supply circuit, the isolated power supply electric power system include public power and three single-phase isolated power supplies
Sub-circuit 100, the single-phase isolated power supply sub-circuit 100 include recommending control circuit 10 and with three-phase bridge IGBT and joint control
The equal single-phase bridge arm isolated power supply sub-circuit 20 of single-phase IGBT drive circuit quantity in circuit processed, the single-phase bridge arm isolation electricity
Source sub-circuit 20 is connected with IGBT drive circuit one-to-one corresponding, and the single-phase bridge arm isolated power supply sub-circuit 20 includes recommending
Switching tube circuit 21, isolating transformer 22 and voltage tripler rectifier circuit 23, wherein,
The isolating transformer 22 includes the primary coil and secondary coil that intercouple, wherein, the primary coil bag
Include the first primary coil and the second primary coil, the different name end of first primary coil and second primary coil it is of the same name
The anode with the public power is held to be connected；
The switching tube circuit 21 of recommending includes the first primary coil and first switch pipe being series at the public power
The first switch circuit at both ends and the second primary coil and second switch pipe are series at the second of the public power both ends
On-off circuit；
The input terminal for recommending control circuit 10 is electrically connected with the public power, the control terminal of the first switch pipe
It is electrically connected with first output terminal for recommending control circuit 10, the control terminal of the second switch pipe recommends control electricity with described
The second output terminal electrical connection on road 10；
Correspondence is electrically connected two input terminals of the voltage tripler rectifier circuit 23 with the both ends of the secondary coil respectively, institute
The output terminal of voltage tripler rectifier circuit 23 is stated for being electrically connected with the power supply terminal of the IGBT drive circuit.
Three-phase bridge IGBT Parallel Controls circuit can be full-bridge circuit or half-bridge circuit, if full-bridge circuit,
Per having upper bridge arm and lower bridge arm in circuitry phase in full-bridge circuit, then the single-phase bridge arm in single-phase isolated power supply sub-circuit 100 every
Quantity from power supply sub-circuit 20 is two；It is only there are one bridge arm in every circuitry phase in half-bridge circuit, then single if half-bridge circuit
The quantity for isolating the single-phase bridge arm isolated power supply sub-circuit 20 in power supply sub-circuit 100 is one.
In the present embodiment, the first output terminal and second output terminal of recommending control circuit 10 are alternately exported by default duty cycle
Pulse-width signal, so as to which the conducting of first switch pipe, the shut-off of second switch pipe or the shut-off of first switch pipe, second switch pipe be made to lead
It is logical, first switch circuit and second switch circuit is in other words namely made to be alternately produced electric current.The different name of first primary coil
Anode of the Same Name of Ends of end and the second primary coil with the common unit is connected, therefore the first primary coil and the second primary
The current direction of coil is opposite.Under the magnetic field being alternately produced in primary coil, secondary coil is alternately produced two opposite sensings
Electromotive force for voltage tripler rectifier circuit 23 provides alternating current, and after 23 rectification of voltage tripler rectifier circuit, output terminal is that IGBT drives
The direct current of dynamic circuit with stable.
In the utility model embodiment, single-phase bridge arm isolated power supply sub-circuit 20 is to three-phase bridge IGBT Parallel Control circuits
In each IGBT drive circuit power supply when, multiple single-phase isolated power supply sub-circuits 100 share a public power, the number of power supply
Amount is few, reduces product cost；To each IGBT drive circuit, correspondence is designed with isolating transformer 22 respectively, avoids single change
Depressor volume occupies greatly very much the problem of product space；What the power supply of each IGBT drive circuit was mutually isolated, it avoids
The load of a wherein winding changes and influences the situation of other windings, improves the stability of integrated circuit.
Optionally, the voltage tripler rectifier circuit 24 includes the first capacitance C1, the second capacitance C2, the 3rd capacitance C3, first
Diode D1, the second diode D2, the 3rd diode D3 and three output terminals, wherein, the cathode of the first capacitance C1 and institute
The first end electrical connection of secondary coil is stated, the anode of the first capacitance C1 is electrically connected with the anode of the first diode D1, and first
The cathode of diode D1 is electrically connected with the anode of the second capacitance C2, cathode and the secondary coil of the second capacitance C2
Second end electrical connection, the anode of the second diode D2 is electrically connected with the second end of the secondary coil, the described 2nd 2
The cathode of pole pipe D2 is electrically connected with the anode of the first capacitance C1, the anode of the 3rd capacitance C3 and the second capacitance C2
Cathode electrical connection, the cathode of the 3rd capacitance C3 is electrically connected with the anode of the 3rd diode D3, the 3rd diode D3
Cathode be electrically connected with the first end of the secondary coil.
In the present embodiment, in the case where the first primary coil and the second primary coil are alternately produced magnetic field, secondary coil alternately produces
Raw two opposite induced electromotive forces power for voltage tripler rectifier circuit, when the second primary coil generates magnetic field, the two or two
Pole pipe and the 3rd diode current flow, the cut-off of the first diode, the first capacitance and the 3rd capacitance are charged to Vout；In the first primary line
When circle generates magnetic field, the first diode current flow, the second diode and the cut-off of the 3rd diode, the second capacitance are charged to 2Vout.This
In embodiment, the output terminal of voltage tripler rectifier circuit 24 includes cathode output end, cathode output end and common port, by described second
The anode of capacitance is as cathode output end, and the cathode of the 3rd capacitance is as cathode output end, between the second capacitance and the 3rd capacitance
As common port, therefore, the voltage that can obtain cathode output end is 2Vout,-the V of cathode output endout, so as to be driven for IGBT
The three times straightening galvanic electricity of dynamic circuit with stable.In the present embodiment, the cathode output end output voltage of voltage tripler rectifier circuit 24
For+15V, cathode output end output voltage is -8V.
Please refer to Fig. 3, optionally, the IGBT drive circuit include the first triode Q1, the second triode Q2 and
Resistance R, the collector of the first triode Q1 are electrically connected with the cathode of the first diode D1, the first triode Q1
Emitter be electrically connected with the emitter of the second triode Q2, the collector and the 3rd diode of the second triode Q2
The anode electrical connection of D3, one end of the resistance R are electrically connected with the emitter of the first triode Q1, the other end of the resistance R
It is electrically connected for the gate pole with IGBT, the anode of the 3rd capacitance C3 is used to be electrically connected with the emitter of IGBT.One or three pole
The base stage of pipe Q1 and the second triode Q2 are electrically connected with electric machine controller.
Each IGBT drive circuit in three-phase bridge IGBT Parallel Controls circuit can obtain isolated power supply electricity as a result,
The electric energy being isolated with other IGBT drive circuits that road is provided.It is obtained in the base stage of the first triode Q1 and the second triode Q2
It is turned on to IGBT is triggered during control signal.
The utility model additionally provides a kind of vehicle, including three-phase bridge IGBT Parallel Control circuits as described above.
Since the structure and circuit connecting relation of vehicle body are the prior arts, three-phase bridge IGBT Parallel Control circuits
Connection relation has been described in detail in the above-described embodiments, therefore, for the structure and electricity of specific vehicle in the present embodiment
Road connection relation repeats no more.
The above is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be wanted with right
Subject to the protection domain asked.
Claims (6)
1. a kind of isolated power supply circuit, applied to the IGBT drive circuit in three-phase bridge IGBT Parallel Control circuits, feature
It is, including public power and three single-phase isolated power supply sub-circuits, the isolated power supply sub-circuit includes recommending control circuit
The single-phase bridge arm isolated power supply electricity equal with single-phase IGBT drive circuit quantity in three-phase bridge IGBT Parallel Control circuits
Road, the single-phase bridge arm isolated power supply sub-circuit include recommending switching tube circuit, isolating transformer and voltage tripler rectifier circuit,
In,
The isolating transformer includes the primary coil and secondary coil that intercouple, wherein, the primary coil includes first
The Same Name of Ends of primary coil and the second primary coil, the different name end of first primary coil and second primary coil with
The anode of the public power is connected；
The switching tube circuit of recommending includes the first primary coil and first switch pipe being series at the public power both ends
First switch circuit and the second switch electricity that the second primary coil and second switch pipe are series to the public power both ends
Road；
The input terminal for recommending control circuit is electrically connected with the public power, the control terminal of the first switch pipe with it is described
The first output terminal electrical connection of control circuit is recommended, the control terminal of the second switch pipe recommends the second of control circuit with described
Output terminal is electrically connected；
Correspondence is electrically connected two input terminals of the voltage tripler rectifier circuit with the both ends of the secondary coil respectively, described three times
The output terminal of voltage rectifier is used to be electrically connected with the power supply terminal of the IGBT drive circuit.
2. isolated power supply circuit according to claim 1, which is characterized in that the voltage tripler rectifier circuit includes the first electricity
Appearance, the second capacitance, the 3rd capacitance, the first diode, the second diode, the 3rd diode and three output terminals, wherein, described
The cathode of one capacitance is electrically connected with the first end of the secondary coil, the anode of first capacitance and the anode of the first diode
Electrical connection, the cathode of the first diode be electrically connected with the anode of second capacitance, the cathode of second capacitance and described secondary
The second end electrical connection of grade coil, the anode of second diode is electrically connected with the second end of the secondary coil, and described the
The cathode of two diodes is electrically connected with the anode of first capacitance, the anode of the 3rd capacitance and bearing for second capacitance
Pole is electrically connected, and the cathode of the 3rd capacitance is electrically connected with the anode of the 3rd diode, the cathode of the 3rd diode and institute
State the first end electrical connection of secondary coil.
3. a kind of three-phase bridge IGBT Parallel Control circuits, which is characterized in that including IGBT drive circuit and isolated power supply electricity
Road, the isolated power supply electric power system include public power and three single-phase isolated power supply sub-circuits, the single-phase isolated power supply
Sub-circuit include recommending control circuit and with single-phase IGBT drive circuit quantity phase in three-phase bridge IGBT Parallel Control circuits
Deng single-phase bridge arm separaant circuit, the single-phase bridge arm isolated power supply sub-circuit and the IGBT drive circuit correspond phase
Even, the single-phase bridge arm isolated power supply sub-circuit includes recommending switching tube circuit, isolating transformer and voltage tripler rectifier circuit,
In,
The isolating transformer includes the primary coil and secondary coil that intercouple, wherein, the primary coil includes first
The Same Name of Ends of primary coil and the second primary coil, the different name end of first primary coil and second primary coil with
The anode of the public power is connected；
The switching tube circuit of recommending includes the first primary coil and first switch pipe being series at the public power both ends
First switch circuit and the second switch electricity that the second primary coil and second switch pipe are series to the public power both ends
Road；
The input terminal for recommending control circuit is electrically connected with the public power, the control terminal of the first switch pipe with it is described
The first output terminal electrical connection of control circuit is recommended, the control terminal of the second switch pipe recommends the second of control circuit with described
Output terminal is electrically connected；
Correspondence is electrically connected two input terminals of the voltage tripler rectifier circuit with the both ends of the secondary coil respectively, described three times
The output terminal of voltage rectifier is used to be electrically connected with the power supply terminal of the IGBT drive circuit.
4. three-phase bridge IGBT Parallel Control circuits according to claim 3, which is characterized in that the voltage tripler rectifier electricity
Road includes the first capacitance, the second capacitance, the 3rd capacitance, the first diode, the second diode, the 3rd diode and three outputs
End, wherein, the cathode of first capacitance is electrically connected with the first end of the secondary coil, the anode of first capacitance and the
The anode electrical connection of one diode, the cathode of the first diode are electrically connected with the anode of second capacitance, second capacitance
Cathode be electrically connected with the second end of the secondary coil, the anode of second diode and the second end of the secondary coil
Electrical connection, the cathode of second diode are electrically connected with the anode of first capacitance, the anode of the 3rd capacitance and institute
The cathode electrical connection of the second capacitance is stated, the cathode of the 3rd capacitance is electrically connected with the anode of the 3rd diode, and the described 3rd 2
The cathode of pole pipe is electrically connected with the first end of the secondary coil.
5. three-phase bridge IGBT Parallel Control circuits according to claim 4, which is characterized in that the IGBT drive circuit
Including the first triode, the second triode and resistance, the cathode of the collector of first triode and first diode
Electrical connection, the emitter of first triode are electrically connected with the emitter of second triode, second triode
Collector is electrically connected with the anode of the 3rd diode, and one end of the resistance is electrically connected with the emitter of the first triode, described
For being electrically connected with the gate pole of IGBT, the anode of the 3rd capacitance is used to be electrically connected with the emitter of IGBT the other end of resistance
It connects.
6. a kind of vehicle, which is characterized in that including the three-phase bridge IGBT Parallel Controls as any one of claim 3-5
Circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721567005.8U CN207399039U (en) | 2017-11-21 | 2017-11-21 | A kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721567005.8U CN207399039U (en) | 2017-11-21 | 2017-11-21 | A kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle |
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| CN207399039U true CN207399039U (en) | 2018-05-22 |
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| CN201721567005.8U Active CN207399039U (en) | 2017-11-21 | 2017-11-21 | A kind of isolated power supply circuit, three-phase bridge IGBT Parallel Controls circuit and vehicle |
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| CN110445361A (en) * | 2019-08-01 | 2019-11-12 | 成都芯源系统有限公司 | Discharge circuit and discharge method of safety capacitor |
| CN110445391A (en) * | 2019-07-29 | 2019-11-12 | 深圳开沃汽车有限公司 | A kind of novel electric automobile motor controller IGBT driving power circuit |
| CN111030460A (en) * | 2019-12-02 | 2020-04-17 | 广州金升阳科技有限公司 | High-voltage output converter |
| CN111342644A (en) * | 2018-12-19 | 2020-06-26 | 比亚迪股份有限公司 | Drive circuit and voltage conversion device |
| CN112054684A (en) * | 2020-08-12 | 2020-12-08 | 北京卫星制造厂有限公司 | Ultrahigh-voltage aerospace switch power supply circuit topological structure |
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2017
- 2017-11-21 CN CN201721567005.8U patent/CN207399039U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342644A (en) * | 2018-12-19 | 2020-06-26 | 比亚迪股份有限公司 | Drive circuit and voltage conversion device |
| CN110445391A (en) * | 2019-07-29 | 2019-11-12 | 深圳开沃汽车有限公司 | A kind of novel electric automobile motor controller IGBT driving power circuit |
| CN110445361A (en) * | 2019-08-01 | 2019-11-12 | 成都芯源系统有限公司 | Discharge circuit and discharge method of safety capacitor |
| CN111030460A (en) * | 2019-12-02 | 2020-04-17 | 广州金升阳科技有限公司 | High-voltage output converter |
| CN112054684A (en) * | 2020-08-12 | 2020-12-08 | 北京卫星制造厂有限公司 | Ultrahigh-voltage aerospace switch power supply circuit topological structure |
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