CN210839036U - Charging and discharging circuit of bidirectional DC/DC converter - Google Patents
Charging and discharging circuit of bidirectional DC/DC converter Download PDFInfo
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- CN210839036U CN210839036U CN201921702394.XU CN201921702394U CN210839036U CN 210839036 U CN210839036 U CN 210839036U CN 201921702394 U CN201921702394 U CN 201921702394U CN 210839036 U CN210839036 U CN 210839036U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model discloses a bidirectional DC/DC converter charging and discharging circuit, which comprises a bidirectional DC/DC converter circuit unit of a bidirectional vehicle-mounted charger circuit unit connected by a transformer, wherein the bidirectional vehicle-mounted charger circuit unit is connected with external alternating current, and the bidirectional DC/DC converter circuit unit is connected with the input ends of an electric vehicle load and an electric vehicle energy feedback circuit; the bidirectional energy flow of the alternating current and the energy feedback circuit and the electric vehicle load can be realized, and the energy transmission between the energy feedback circuit and the electric vehicle load can also be realized.
Description
Technical Field
The utility model relates to an electric automobile technical field especially relates to a two-way DC/DC converter charge-discharge circuit.
Background
With the progress of technology, electric vehicles have become the development direction of future vehicles, and vehicle-mounted electronic devices have been in the trend of miniaturization, integration and high power density, and especially, as a vehicle-mounted charger and a vehicle-mounted DC/DC direct-current converter, as the electric energy conversion core component of the whole electric vehicle, the miniaturization and high integration are urgently required. The existing vehicle-mounted charger and vehicle-mounted DC/DC converter are separated, have high cost and large occupied space and are gradually eliminated, and with the adoption of the integration scheme of the vehicle-mounted charger and the vehicle-mounted DC/DC converter, partial structural parts and port wiring are saved, but a large number of electrical elements are still needed, so that the cost, the volume and the integration degree are far from the market requirement.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a two-way DC/DC converter charge-discharge circuit, for prior art, high integration, the volume reduces by a wide margin, cost greatly reduced.
In order to achieve the above object, the utility model provides a two-way DC/DC converter charge-discharge circuit includes two-way on-vehicle machine circuit unit that charges, two-way DC/DC converter circuit unit, transformer T1, two-way on-vehicle machine circuit unit with two-way DC/DC converter circuit unit passes through transformer T1 electrical connection, two-way on-vehicle machine circuit unit that charges connects electric motor car input capacitance Cin, two-way DC/DC converter circuit unit is connected with electric motor car load and electric motor car energy feedback circuit's input;
the bidirectional vehicle-mounted charger circuit unit comprises a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a fourth switching tube Q5, a relay RLY1, a first inductor L1 and a first capacitor C1;
the transformer T1 comprises a primary winding 11, a first secondary winding 21 and a second secondary winding 22;
the bidirectional DC/DC converter circuit unit comprises a first bridge circuit, a second inductor L2, a second capacitor C2, a third inductor L3, a third capacitor C3, a first output capacitor Cout1 and a second output capacitor Cout 2; the first bridge circuit comprises a fifth switch tube Q5, a sixth switch tube Q6, a seventh switch tube Q7 and the eighth switch tube Q8; the second bridge circuit comprises a ninth switching tube Q9, a tenth switching tube Q10, an eleventh switching tube Q11 and a twelfth switching tube Q12;
the electric vehicle input capacitor Cin is connected with 220V alternating current, and the first output capacitor Cout stage is connected with the input end of the electric vehicle energy feedback circuit; the second output capacitor Cout2 is connected to the electric vehicle load.
Preferably, the electric vehicle input capacitor Cin is connected in parallel with the series circuit of the first switching tube Q1 and the second switching tube Q2 and the series circuit of the third switching tube Q3 and the fourth switching tube Q5, a midpoint of the series circuit of the first switching tube Q1 and the second switching tube Q2 is connected to one end of the first inductor L1 through the relay RLY1, the other end of the first inductor L1 is connected to one end of the primary winding 11 of the transformer T1, and a midpoint of the series circuit of the third switching tube Q3 and the fourth switching tube Q5 is connected to the other end of the primary winding 11 of the transformer T1 through the first capacitor C1;
the first output capacitor Cout1 is connected in parallel with the series circuit of the fifth switching tube Q5 and the sixth switching tube Q6 and the series circuit of the seventh switching tube Q7 and the eighth switching tube Q8, a midpoint of the series circuit of the fifth switching tube Q5 and the sixth switching tube Q6 is connected to one end of the first secondary winding 21 of the transformer T1 through the second inductor L2, and a midpoint of the series circuit of the seventh switching tube Q7 and the eighth switching tube Q8 is connected to the other end of the first secondary winding 21 of the transformer T1 through the second capacitor C2;
the second output capacitor Cout2 is connected in parallel with the series circuit of the ninth switching tube Q9 and the tenth switching tube Q10 and the series circuit of the eleventh switching tube Q11 and the twelfth switching tube Q12, a midpoint of the series circuit of the ninth switching tube Q9 and the tenth switching tube Q10 is connected to one end of the second secondary winding 22 of the transformer T1 through the third inductor L3, and a midpoint of the series circuit of the eleventh switching tube Q11 and the twelfth switching tube Q12 is connected to the other end of the second secondary winding 22 of the transformer T1 through the third capacitor C3.
Preferably, when the electric vehicle is in a charging state, the relay RLY1 is closed, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q5 operate in a full-bridge control mode to convert the 220V alternating current into a stable direct current, the primary winding 11 of the transformer T1 belongs to an energy input side, the first secondary winding 21 and the second secondary winding 22 are energy output sides, and the fifth switch tube Q5, the sixth switch tube Q6, the seventh switch tube Q7 and the eighth switch tube Q8 operate in a full-bridge control mode to output Vout1 for supplying power to the electric vehicle energy feedback circuit; the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11 and the twelfth switching tube Q12 work in a full-bridge control mode, and output Vout2 supplies power to the electric vehicle load, so that the function of a vehicle-mounted charger is realized.
Preferably, when the electric vehicle is in a state that the electric vehicle energy feedback circuit supplies power to the electric vehicle load, the relay RLY1 is turned off, the first switching tube Q1, the second switching tube Q2, the third switching tube Q3 and the fourth switching tube Q5 do not work, the primary winding 11 of the transformer T1 is in an open-circuit state, the fifth switching tube Q5, the sixth switching tube Q6, the seventh switching tube Q7 and the eighth switching tube Q8 work in a full-bridge control mode, and the electric vehicle energy feedback circuit is in a discharging state; the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11 and the twelfth switching tube Q12 work in a synchronous rectification mode, and output Vout2 supplies power to the electric vehicle load, so that the function of the vehicle-mounted DC/DC converter is realized.
The utility model provides a two-way DC/DC converter charge-discharge circuit includes the two-way DC/DC converter circuit unit of the two-way vehicle-mounted charger circuit unit that connects through the transformer, and the two-way vehicle-mounted charger circuit unit connects the external alternating current, and the two-way DC/DC converter circuit unit is connected with the input of electric motor car load and electric motor car energy feedback circuit; the bidirectional energy flow of the alternating current and the energy feedback circuit and the electric vehicle load can be realized, and the energy transmission between the energy feedback circuit and the electric vehicle load can also be realized.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram of a charging and discharging circuit of a bidirectional DC/DC converter provided in an embodiment of the present invention.
Detailed Description
The utility model discloses a solve the problem that prior art exists, provide a two-way DC/DC converter charge-discharge circuit, for prior art, highly integrated, the volume reduces substantially, cost greatly reduced.
To further illustrate the technical means and effects of the present invention for achieving the objectives of the present invention, the following detailed description will be given to the specific embodiments, structures, features and effects of the bidirectional DC/DC converter charging/discharging circuit according to the present invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Referring to fig. 1, the charging and discharging circuit of the bidirectional DC/DC converter provided in the embodiment of the present invention includes a bidirectional vehicle-mounted charger circuit unit 101, a bidirectional DC/DC converter circuit unit 102, and a transformer T1, wherein the bidirectional vehicle-mounted charger circuit unit 101 and the bidirectional DC/DC converter circuit unit 102 are electrically connected through the transformer T1, the bidirectional vehicle-mounted charger circuit unit 101 is connected to an input capacitor Cin of an electric vehicle, and the bidirectional DC/DC converter circuit unit 102 is connected to an input terminal of an electric vehicle load and an electric vehicle energy feedback circuit;
the bidirectional vehicle-mounted charger circuit unit 101 comprises a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a fourth switching tube Q5, a relay RLY1, a first inductor L1 and a first capacitor C1;
the transformer T1 comprises a primary winding 11, a first secondary winding 21 and a second secondary winding 22;
the bidirectional DC/DC converter circuit unit 102 includes a first bridge circuit, a second inductor L2, a second capacitor C2, a third inductor L3, a third capacitor C3, a first output capacitor Cout1, and a second output capacitor Cout 2; the first bridge circuit comprises a fifth switch tube Q5, a sixth switch tube Q6, a seventh switch tube Q7 and the eighth switch tube Q8; the second bridge circuit comprises a ninth switching tube Q9, a tenth switching tube Q10, an eleventh switching tube Q11 and a twelfth switching tube Q12;
the electric vehicle input capacitor Cin is connected with 220V alternating current, and the first output capacitor Cout stage is connected with the input end of the electric vehicle energy feedback circuit; the second output capacitor Cout2 is connected to the electric vehicle load.
The embodiment of the utility model provides a two-way DC/DC converter charge-discharge circuit includes the two-way DC/DC converter circuit unit of the two-way on-vehicle charger circuit unit that connects through the transformer, and two-way on-vehicle charger circuit unit connects outside alternating current, and two-way DC/DC converter circuit unit is connected with electric motor car load and electric motor car energy feedback circuit's input; the bidirectional energy flow of the alternating current and the energy feedback circuit and the electric vehicle load can be realized, and the energy transmission between the energy feedback circuit and the electric vehicle load can also be realized.
Referring further to fig. 1, the electric vehicle input capacitor Cin is connected in parallel with the series circuit of the first switching tube Q1 and the second switching tube Q2 and the series circuit of the third switching tube Q3 and the fourth switching tube Q5, a midpoint of the series circuit of the first switching tube Q1 and the second switching tube Q2 is connected to one end of the first inductor L1 through the relay RLY1, the other end of the first inductor L1 is connected to one end of the primary winding 11 of the transformer T1, and a midpoint of the series circuit of the third switching tube Q3 and the fourth switching tube Q5 is connected to the other end of the primary winding 11 of the transformer T1 through the first capacitor C1;
the first output capacitor Cout1 is connected in parallel with the series circuit of the fifth switching tube Q5 and the sixth switching tube Q6 and the series circuit of the seventh switching tube Q7 and the eighth switching tube Q8, a midpoint of the series circuit of the fifth switching tube Q5 and the sixth switching tube Q6 is connected to one end of the first secondary winding 21 of the transformer T1 through the second inductor L2, and a midpoint of the series circuit of the seventh switching tube Q7 and the eighth switching tube Q8 is connected to the other end of the first secondary winding 21 of the transformer T1 through the second capacitor C2;
the second output capacitor Cout2 is connected in parallel with the series circuit of the ninth switching tube Q9 and the tenth switching tube Q10 and the series circuit of the eleventh switching tube Q11 and the twelfth switching tube Q12, a midpoint of the series circuit of the ninth switching tube Q9 and the tenth switching tube Q10 is connected to one end of the second secondary winding 22 of the transformer T1 through the third inductor L3, and a midpoint of the series circuit of the eleventh switching tube Q11 and the twelfth switching tube Q12 is connected to the other end of the second secondary winding 22 of the transformer T1 through the third capacitor C3.
As an embodiment of the present invention, when the electric vehicle is in a charging state, the relay RLY1 is closed, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q5 operate in a full-bridge control mode to convert the 220V ac power into a stable dc power, the primary winding 11 of the transformer T1 belongs to an energy input side, the first secondary winding 21 and the second secondary winding 22 are energy output sides, the fifth switch tube Q5, the sixth switch tube Q6, the seventh switch tube Q7 and the eighth switch tube Q8 operate in a full-bridge control mode to output Vout1 to power the electric vehicle energy feedback circuit; the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11 and the twelfth switching tube Q12 work in a full-bridge control mode, and output Vout2 supplies power to the electric vehicle load, so that the function of a vehicle-mounted charger is realized.
As an embodiment of the present invention, when the electric vehicle is in a state where the electric vehicle energy feedback circuit supplies power to the electric vehicle load, the relay RLY1 is turned off, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q5 do not work, the primary winding 11 of the transformer T1 is in an open-circuit state, the fifth switch tube Q5, the sixth switch tube Q6, the seventh switch tube Q7 and the eighth switch tube Q8 work in a full-bridge control mode, and the electric vehicle energy feedback circuit is in a discharging state; the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11 and the twelfth switching tube Q12 work in a synchronous rectification mode, and output Vout2 supplies power to the electric vehicle load, so that the function of the vehicle-mounted DC/DC converter is realized.
The embodiment of the utility model provides a two-way DC/DC converter charge-discharge circuit includes the two-way DC/DC converter circuit unit of the two-way on-vehicle charger circuit unit that connects through the transformer, and two-way on-vehicle charger circuit unit connects outside alternating current, and two-way DC/DC converter circuit unit is connected with electric motor car load and electric motor car energy feedback circuit's input; the bidirectional energy flow of the alternating current and the energy feedback circuit and the electric vehicle load can be realized, and the energy transmission between the energy feedback circuit and the electric vehicle load can also be realized.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The charging and discharging circuit of the bidirectional DC/DC converter is characterized by comprising a bidirectional vehicle-mounted charger circuit unit, a bidirectional DC/DC converter circuit unit and a transformer T1, wherein the bidirectional vehicle-mounted charger circuit unit is electrically connected with the bidirectional DC/DC converter circuit unit through the transformer T1, the bidirectional vehicle-mounted charger circuit unit is connected with an electric vehicle input capacitor Cin, and the bidirectional DC/DC converter circuit unit is connected with an electric vehicle load and an input end of an electric vehicle energy feedback circuit;
the bidirectional vehicle-mounted charger circuit unit comprises a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a fourth switching tube Q5, a relay RLY1, a first inductor L1 and a first capacitor C1;
the transformer T1 comprises a primary winding 11, a first secondary winding 21 and a second secondary winding 22;
the bidirectional DC/DC converter circuit unit comprises a first bridge circuit, a second inductor L2, a second capacitor C2, a third inductor L3, a third capacitor C3, a first output capacitor Cout1 and a second output capacitor Cout 2; the first bridge circuit comprises a fifth switch tube Q5, a sixth switch tube Q6, a seventh switch tube Q7 and an eighth switch tube Q8; the second bridge circuit comprises a ninth switching tube Q9, a tenth switching tube Q10, an eleventh switching tube Q11 and a twelfth switching tube Q12;
the electric vehicle input capacitor Cin is connected with 220V alternating current, and the first output capacitor Cout stage is connected with the input end of the electric vehicle energy feedback circuit; the second output capacitor Cout2 is connected to the electric vehicle load.
2. The charging and discharging circuit of claim 1, wherein the input capacitor Cin of the electric vehicle is connected in parallel with the series circuit of the first switch tube Q1 and the second switch tube Q2 and the series circuit of the third switch tube Q3 and the fourth switch tube Q5, a middle point of the series circuit of the first switch tube Q1 and the second switch tube Q2 is connected to one end of the first inductor L1 through the relay RLY1, the other end of the first inductor L1 is connected to one end of the primary winding 11 of the transformer T1, and a middle point of the series circuit of the third switch tube Q3 and the fourth switch tube Q5 is connected to the other end of the primary winding 11 of the transformer T1 through the first capacitor C1;
the first output capacitor Cout1 is connected in parallel with the series circuit of the fifth switching tube Q5 and the sixth switching tube Q6 and the series circuit of the seventh switching tube Q7 and the eighth switching tube Q8, a midpoint of the series circuit of the fifth switching tube Q5 and the sixth switching tube Q6 is connected to one end of the first secondary winding 21 of the transformer T1 through the second inductor L2, and a midpoint of the series circuit of the seventh switching tube Q7 and the eighth switching tube Q8 is connected to the other end of the first secondary winding 21 of the transformer T1 through the second capacitor C2;
the second output capacitor Cout2 is connected in parallel with the series circuit of the ninth switching tube Q9 and the tenth switching tube Q10 and the series circuit of the eleventh switching tube Q11 and the twelfth switching tube Q12, a midpoint of the series circuit of the ninth switching tube Q9 and the tenth switching tube Q10 is connected to one end of the second secondary winding 22 of the transformer T1 through the third inductor L3, and a midpoint of the series circuit of the eleventh switching tube Q11 and the twelfth switching tube Q12 is connected to the other end of the second secondary winding 22 of the transformer T1 through the third capacitor C3.
3. The charging and discharging circuit of claim 2, wherein when the electric vehicle is in a charging state, the relay RLY1 is closed, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q5 operate in a full-bridge control mode to convert the 220V ac power into a stable DC power, the primary winding 11 of the transformer T1 belongs to an energy input side, the first secondary winding 21 and the second secondary winding 22 are energy output sides, the fifth switch tube Q5, the sixth switch tube Q6, the seventh switch tube Q7 and the eighth switch tube Q8 operate in a full-bridge control mode to output Vout1 for supplying power to the electric vehicle energy feedback circuit; the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11 and the twelfth switching tube Q12 work in a full-bridge control mode, and output Vout2 supplies power to the electric vehicle load, so that the function of a vehicle-mounted charger is realized.
4. The bi-directional DC/DC converter charging and discharging circuit of claim 2, wherein when the electric vehicle is in a state where the electric vehicle energy feedback circuit supplies power to the electric vehicle load, the relay RLY1 is turned off, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q5 are not operated, the primary winding 11 of the transformer T1 is in an open state, the fifth switch tube Q5, the sixth switch tube Q6, the seventh switch tube Q7 and the eighth switch tube Q8 are operated in a full-bridge control mode, and the electric vehicle energy feedback circuit is in a discharging state; the ninth switching tube Q9, the tenth switching tube Q10, the eleventh switching tube Q11 and the twelfth switching tube Q12 work in a synchronous rectification mode, and output Vout2 supplies power to the electric vehicle load, so that the function of the vehicle-mounted DC/DC converter is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702394.XU CN210839036U (en) | 2019-10-12 | 2019-10-12 | Charging and discharging circuit of bidirectional DC/DC converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702394.XU CN210839036U (en) | 2019-10-12 | 2019-10-12 | Charging and discharging circuit of bidirectional DC/DC converter |
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| CN210839036U true CN210839036U (en) | 2020-06-23 |
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| CN201921702394.XU Active CN210839036U (en) | 2019-10-12 | 2019-10-12 | Charging and discharging circuit of bidirectional DC/DC converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737344A (en) * | 2020-12-29 | 2021-04-30 | 联合汽车电子有限公司 | Battery charging circuit |
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2019
- 2019-10-12 CN CN201921702394.XU patent/CN210839036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737344A (en) * | 2020-12-29 | 2021-04-30 | 联合汽车电子有限公司 | Battery charging circuit |
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