CN109624733A - It is a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger - Google Patents
It is a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger Download PDFInfo
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- CN109624733A CN109624733A CN201811448690.1A CN201811448690A CN109624733A CN 109624733 A CN109624733 A CN 109624733A CN 201811448690 A CN201811448690 A CN 201811448690A CN 109624733 A CN109624733 A CN 109624733A
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- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
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- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
- H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
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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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of for the vehicle-mounted DC/DC converter of high speed electric vehicle and the merging main circuit of Vehicular charger, including circuit for charging machine and DC/DC conversion electric power circuit, circuit for charging machine includes full bridge switching circuit and main transformer, the output end of main transformer is equipped with full-bridge rectification pipe, DC/DC conversion circuit includes level-one BUCK circuit and a pair of of MOS switch pipe and the full pulsewidth push-pull circuit that main transformer is constituted, i.e., exports winding centre tap in charger.The present invention is switched over switch by the state of OBC and DC, is realized the two-in-one scheme of shared main transformer, is optimized the cost of vehicle-mounted integral power supply, and do not influence on the other functions and index of circuit.
Description
Technical field
The present invention relates to vehicle power supply fields, are related specifically to a kind of DC/DC converter and vehicle for high speed electric vehicle
Carry the consolidation circuit of charger.
Background technique
Vehicular charger OBC and DC/DC conversion electric power is two important electric components in pure electric automobile, by two sets
It is following trend that independent electrical design component, which is mounted in the same shell,.This mode principle is simple, can save knot
Component and part wiring cost have begun the approval for obtaining vehicle producer.And use the design of circuit integrating can be further
Electronic component quantity inside optimization, further decreases overall cost, and structure can be facilitated to design.However, in the prior art this
Kind of consolidation circuit in two operating conditions circuit reliability of operation, the guarantee of technical indicator, will not rush between each other
Equal detailed problems of dashing forward have to be solved.The especially corresponding OBC full-bridge rectification output design of high power vehicular integrated design, needs
Solve the problems, such as how to dock in a dc mode with DC mode.
Summary of the invention
The deficiency that it is an object of the invention to be directed in the integrated technique scheme for being currently used for solving small-power low-speed vehicle,
There is provided it is a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger, to solve the above problems.
Technical problem solved by the invention can be realized using following technical scheme:
It is a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger, including circuit for charging machine
Further include control switch and two metal-oxide-semiconductors with DC/DC conversion electric power circuit, the circuit for charging machine include main transformer and
The full-bridge main switch circuit being connected with the primary side winding end of main transformer；The side of paying of main transformer is equipped with main output winding and auxiliary
Winding is exported, the main output winding terminal of main transformer is equipped with full bridge rectifier, and full bridge rectifier includes diode D1, two poles
The cathode of pipe D2, diode D3 and diode D4, diode D1 are connected with the cathode of diode D2, anode and the master of diode D1
The cathode of one end and diode D3 for exporting winding is connected, and the anode of diode D3 is connected with the anode of diode D4, two poles
The cathode of pipe D4 is connected with the other end of the positive and main output winding of diode D2；The both ends of control switch are defeated with master respectively
The cathode of the centre tap of winding and diode D2 are connected out, and main output winding is passing through two metal-oxide-semiconductors and diode D4 just
Extremely it is connected；DC/DC conversion electric power circuit constitutes push-pull circuit by two metal-oxide-semiconductors；The auxiliary output winding terminal of main transformer is logical
At least two diodes and a capacitor are crossed for realizing lower pressure rectifier filtering.
Further, the anode of the diode D4 is connected with the source electrode of two metal-oxide-semiconductors, the drain electrode difference of two metal-oxide-semiconductors
It is connected with the cathode of the cathode of diode D3 and diode D4.
It further, further include switch J3, one end of switch J3 is connected with the source electrode of two metal-oxide-semiconductors, and switch J3's is another
End is connected with the anode of diode D4.
Further, further include the pre- voltage regulator circuit of diode C1 and BUCK, the pre- voltage regulator circuit of BUCK include diode D5,
One end of switching tube K7 and inductance L1, inductance L1 are connected with the cathode of diode D2, the other end of inductance L1 respectively with diode
The cathode of D5 and the source electrode of switching tube K7 are connected, and the drain electrode of switching tube K7 is connected with the anode of capacitor C1, the cathode of capacitor C1
It is connected with the anode of the anode of diode D5 and diode D4, the both ends of capacitor C1 form charger output end.
Further, the full-bridge main switch circuit includes switching tube K1, switching tube K2, switching tube K3 and switching tube K4,
The drain electrode of switching tube K1 and the drain electrode of switching tube K3 are connected with PFC bus, the drain electrode of the source electrode and switching tube K2 of switching tube K1
Be connected, the source electrode of switching tube K3 is connected with the drain electrode of switching tube K4, the source electrode of the source electrode of switching tube K2 and switching tube K4 with
The end power supply VCC is connected, and the drain electrode of switching tube K4 is connected by switch J1 with one end of the primary side winding of main transformer, transformer
The other end of primary side winding is connected with the source electrode of switching tube K1；When system is in charger mode, switch J1 closure, control are opened
Shutdown is opened, and when system is in DC mode, switch J1 is disconnected, control switch is closed.
It further, further include switch J31, the main output winding of the main transformer includes that first set gradually is taken out
Head, centre tap and the second tap, 1 end of switch J31 are connected with the first tap, and 2 ends of switch J32 are connected with the second tap,
3 ends and 4 ends of switch J31 pass through two metal-oxide-semiconductors respectively and are connected with the cathode of diode charging machine output end.
Further, the auxiliary output winding terminal is equipped with diode D6, diode D7 and capacitor C2, and diode D6 is just
Pole is connected with one end of auxiliary output winding, the positive phase of the cathode of diode D6 and the cathode of diode D7 and capacitor C2
Even, the cathode of capacitor C2 is connected with the centre tap of auxiliary output winding, and the both ends of capacitor C2 form DC output end.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention is the Vehicular charger circuit that DC/DC conversion function can be achieved, and clear principle switches with a small amount of relay
Cost it is easy to control, the high-power output of OBC may be implemented, output area is wide, and platform is relatively specific for the dynamic of voltage levels
Power battery, the i.e. occasion of high speed electric vehicle.The present invention is switched over switch by the state of OBC and DC, realizes shared main transformer
The two-in-one scheme of depressor, compared with the scheme of OBC output full-wave rectification, it is defeated that full-bridge rectification is more suitable for high voltage output high-power
Out.And it is solved with the output tapped DC handover scheme of winding and solves reversed DC topology under OBC output all-wave finishing condition
To ideally realize the pooling function of DC/DC converter and Vehicular charger, further simplify device usage amount and
Structure member design, optimizes the cost of vehicle-mounted integral power supply, and circuit theory is simple, reliable, other functions to circuit and
Index does not influence.
Detailed description of the invention
Fig. 1 is the consolidation circuit of the DC/DC converter and Vehicular charger of the present invention for high speed electric vehicle
Structural schematic diagram.
Fig. 2 is pattern switching disconnecting switch J2 using double-contact and the structural schematic diagram of Multiple coil.
Fig. 3 is the physical circuit figure of the consolidation circuit of the DC/DC converter and Vehicular charger for high speed electric vehicle.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to FIG. 1 to FIG. 3, a kind of DC/DC converter and Vehicular charger for high speed electric vehicle of the present invention
Consolidation circuit, further include control switch and two metal-oxide-semiconductors.Circuit for charging machine includes main transformer and the original with main transformer
The connected full-bridge main switch circuit of side winding terminal.The side of paying of main transformer is equipped with main output winding and auxiliary output winding, main transformer
The main output winding terminal of depressor is equipped with full bridge rectifier.Full bridge rectifier includes diode D1, diode D2, diode D3
With diode D4.The cathode of diode D1 is connected with the cathode of diode D2, the anode of diode D1 and the one of main output winding
The cathode of end and diode D3 are connected.Diode D3 anode be connected with the anode of diode D4, the cathode of diode D4 and
The other end of the positive and main output winding of diode D2 is connected.The both ends of control switch J2 are respectively and in main output winding
Between the cathode of tap and diode D2 be connected, main output winding pass through two metal-oxide-semiconductors be connected with the anode of diode D4.Center
Tap is connected to the BUCK output end of DC circuit with control switch J2, forms a cascade DC conversion circuit.DC/DC conversion electricity
Source circuit constitutes push-pull circuit by two metal-oxide-semiconductors.Main transformer auxiliary output winding terminal by least two diodes with
And a capacitor is for realizing lower pressure rectifier filtering.
The anode of diode D4 is connected with the source electrode of metal-oxide-semiconductor K5 and metal-oxide-semiconductor K6, the drain electrode difference of metal-oxide-semiconductor K5 and metal-oxide-semiconductor K6
It is connected with the cathode of the cathode of diode D3 and diode D4.
It further include switch J3, one end of switch J3 is connected with the source electrode of two metal-oxide-semiconductors, the other end and diode of switch J3
The anode of D4 is connected.Due to the high-voltage MOS pipe K5, the metal-oxide-semiconductor K6 that are attempted by rectifying tube, its inherent body diode restores
Characteristic is poor, needs that switch J3 is added when " charger " and " DC " state switch, metal-oxide-semiconductor K5 is disconnected in OBC work status
With metal-oxide-semiconductor K6.
It further include the pre- voltage regulator circuit of diode C1 and BUCK, the pre- voltage regulator circuit of BUCK includes diode D5, switching tube K7
With inductance L1.One end of inductance L1 is connected with the cathode of diode D2, the other end of the inductance L1 cathode with diode D5 respectively
And the source electrode of switching tube K7 is connected.The drain electrode of switching tube K7 is connected with the anode of capacitor C1, the cathode and diode of capacitor C1
The anode of D5 and the anode of diode D4 are connected, and the both ends of capacitor C1 form charger output end.
Full-bridge main switch circuit includes switching tube K1, switching tube K2, switching tube K3 and switching tube K4.The drain electrode of switching tube K1
And the drain electrode of switching tube K3 is connected with PFC bus, the source electrode of switching tube K1 is connected with the drain electrode of switching tube K2.Switching tube K3's
Source electrode is connected with the drain electrode of switching tube K4, and the source electrode of switching tube K2 and the source electrode of switching tube K4 are connected with the end power supply VCC, opens
The drain electrode for closing pipe K4 is connected by switch J1 with one end of the primary side winding of main transformer.The other end of the primary side winding of transformer
It is connected with the source electrode of switching tube K1.In order to which the peripheral components of main transformer when DC and charger OBC being made to work do not generate conflict,
When system is in charger mode, switch J1 closure, control switch J2 are disconnected, and when system is in DC mode, switch J1
It disconnects, control switch J2 closure.
The occasion changed greatly is required in certain charging end output voltages, if be not able to satisfy with centre tapped simplex winding
The requirement of DC design parameter is combined, can be solved by the way of adding winding, it is not direct that DC, which recommends switch metal-oxide-semiconductor, at this time
It is attempted by rectifying tube, in detail as shown in Figure 2.System further includes switch J31, and the main output winding of the main transformer includes successively
The first tap, centre tap and the second tap being arranged.1 end of switch J31 is connected with the first tap, 2 ends of switch J32 and the
Two taps are connected, and 3 ends and 4 ends of switch J31 pass through two metal-oxide-semiconductors respectively and are connected with the cathode of diode charging machine output end.
Auxiliary output winding terminal is equipped with diode D6, diode D7 and capacitor C2.The anode of diode D6 is exported with auxiliary
One end of winding is connected, and the cathode of diode D6 is connected with the anode of the cathode of diode D7 and capacitor C2.Capacitor C2's is negative
Pole is connected with the centre tap of auxiliary output winding, and the both ends of capacitor C2 form DC output end.
Fig. 3 is that the consolidation circuit design of the practical DC/DC converter and Vehicular charger for high speed electric vehicle is real
Example.When working under charger mode, switch J10 and switch J40 are closed, and control switch J20 and switch J30 are disconnected.Switching tube
K10~K40 can be controlled using phase-shifting full-bridge, can also be controlled using soft-switch PWM, to drive the primary side winding of main transformer
N1.Main output winding N2 voltage exports after inductance L10, capacitor C10 filtering to electricity after diode D10~D40 full-bridge rectification
Chi Duan.
DC/DC conversion electric power circuit includes sequentially connected output filter circuit, in such a mode switch J10, switch J40
It disconnects, control switch J20, switch J30 closure.The pre- voltage regulator circuit cascade being made of diode D5, switching tube K7 and inductance L1,
Main output winding forms DC main switch circuit by N2 (N2A, N2B) and metal-oxide-semiconductor K50 and metal-oxide-semiconductor K60 and constitutes the complete main electricity of DC
Road.The both ends of DC/DC conversion electric power circuit are separately connected power battery and low-voltage electrical apparatus；Rectification circuit includes auxiliary output winding
N3, diode D6, diode D7 complete low-voltage, high-current output with filter capacitor C2.
To improve overall efficiency, under OBC mode, switching tube K7 can use big space rate or DC driven, defeated to improve
Return loss out.In a dc mode, synchronous rectification replacement diode D6 and diode D7 can be used to improve rectification damage
It loses.
The influence of metal-oxide-semiconductor K5, metal-oxide-semiconductor K6 to circuit can be cut under OBC mode with single contact J2.It can also use respectively
Two independent switches simultaneously switch off the two metal-oxide-semiconductors.Especially in the design of wide output voltage, needs to increase and pay side winding
And increase J40 simultaneously.
The output end of existing all-in-one machine circuit arrangement uses full-wave rectifying circuit, is relatively specific for being less than low in 200V
The OBC of voltage is exported, and the high-power charger of the common 3.3KW or more of passenger car generally uses full bridge rectifier, in this way
It can choose lower rectifying tube pressure resistance and improve the utilization rate of output winding.The present invention is solved by the change in topology theory
Certainly problem above.
By taking one exports the charger of charging voltage 300V as an example, DC output voltage V2 is set as 13.8V, charger exports
Voltage range is between 200-400V.
In view of output voltage is 300V cell grade, DC uses the pre- voltage regulator circuit of BUCK, to improve the efficiency that DC is converted,
Generally take umber of turn of the 1T as 13.8V.To cover power battery end 200V lower limit, N2A, B=11T are taken, then reflected voltage
About (13.8+0.6) * 10=158V, setting pre- pressure stabilizing maximum duty cycle about 80%, BUCK output can cover, and category compares conjunction
Manage section.
For OBC full-bridge main circuit primary side winding, PFC busbar voltage is set as 400V, winding N1 needs to meet
When holding voltage about 400V, DC output end voltage about 15V, then NP=400/15=26T, the number of turns that charger exports winding is about NS
=400*26/400=26T.The winding for having been determined as 22T in view of DC primary side winding, therefore main transformer being needed to add a 4T again
Just it is able to satisfy the requirement that charger pays side output voltage.
Working principle:
1, charger OBC operating mode:
Full-bridge main switch circuit is formed by switching tube K10~K40, by phase-shifting full-bridge special integrated circuit UCC3895 and
The lower soft switch conversion for completing AC/DC main circuit of the combination driving of IR2110 special driving chip.MCU output relay control at this time
Logic processed is switch J10, switch J40 closure, and switch J20, switch J30 are disconnected.There is diode D10~D40 to complete output rectification
Output direct current charges the battery after inductance L10, capacitor C20 filtering.
2, DC operating mode:
MCU output relay control logic is switch J10, switch J40 disconnection, switch J20, switch J30 closure.It is former at this time
Side winding is hanging, and N2 winding is recommended full pulsewidth by metal-oxide-semiconductor K50, metal-oxide-semiconductor K60 completion and converted, by diode D50, switching tube K70
The pre- pressure stabilizing of BUCK is completed with inductance L10, PWM is completed by UC3842 chip and is controlled to adjust.To realize output end to power battery end
The adaptation that voltage significantlys change.N3 winding exports the rectification through diode D61, diode D62, diode D71 and diode D72
And low-voltage, high-current output is realized after the filtering of inductance L20, capacitor C20.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger, including circuit for charging machine and
DC/DC conversion electric power circuit, it is characterised in that: further include control switch and two metal-oxide-semiconductors, the circuit for charging machine includes main transformer
Depressor and the full-bridge main switch circuit being connected with the primary side winding end of main transformer；Main transformer pay side be equipped with it is main output around
Group and auxiliary output winding, the main output winding terminal of main transformer are equipped with full bridge rectifier, and full bridge rectifier includes two poles
The cathode of pipe D1, diode D2, diode D3 and diode D4, diode D1 are connected with the cathode of diode D2, diode D1
Anode be connected with one end of main output winding and the cathode of diode D3, positive and diode D4 the anode of diode D3
It is connected, the other end of the positive and main output winding of the cathode and diode D2 of diode D4 is connected；The both ends of control switch
It is connected respectively with the cathode of the centre tap of main output winding and diode D2, main output winding passes through two metal-oxide-semiconductors and two
The anode of pole pipe D4 is connected；DC/DC conversion electric power circuit constitutes push-pull circuit by two metal-oxide-semiconductors；The auxiliary of main transformer is defeated
Winding terminal is by least two diodes and a capacitor for realizing lower pressure rectifier filtering out.
2. it is according to claim 1 for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger,
Be characterized in that: the diode D4 anode be connected with the source electrode of two metal-oxide-semiconductors, the drain electrode of two metal-oxide-semiconductors respectively with diode
The cathode of D3 and the cathode of diode D4 are connected.
3. it is according to claim 2 for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger,
It is characterized in that: further including switch J3, one end of switch J3 is connected with the source electrode of two metal-oxide-semiconductors, the other end of switch J3 and two poles
The anode of pipe D4 is connected.
4. it is according to claim 3 for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger,
It is characterized in that: further including the pre- voltage regulator circuit of diode C1 and BUCK, the pre- voltage regulator circuit of BUCK includes diode D5, switching tube K7
It is connected with one end of inductance L1, inductance L1 with the cathode of diode D2, the other end of the inductance L1 cathode with diode D5 respectively
And the source electrode of switching tube K7 is connected, the drain electrode of switching tube K7 is connected with the anode of capacitor C1, the cathode and diode of capacitor C1
The anode of D5 and the anode of diode D4 are connected, and the both ends of capacitor C1 form charger output end.
5. it is according to claim 2 for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger,
Be characterized in that: the full-bridge main switch circuit includes switching tube K1, switching tube K2, switching tube K3 and switching tube K4, switching tube K1
Drain electrode and the drain electrode of switching tube K3 be connected with PFC bus, the source electrode of switching tube K1 is connected with the drain electrode of switching tube K2, switch
The source electrode of pipe K3 is connected with the drain electrode of switching tube K4, the source electrode of the source electrode of switching tube K2 and switching tube K4 with the end power supply VCC
It is connected, the drain electrode of switching tube K4 is connected by switch J1 with one end of the primary side winding of main transformer, the primary side winding of transformer
The other end be connected with the source electrode of switching tube K1；When system is in charger mode, switch J1 closure, control switch are disconnected,
When system is in DC mode, switch J1 is disconnected, control switch is closed.
6. it is according to claim 1 for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger,
It is characterized in that: further including switch J31, the main output winding of the main transformer includes the first tap set gradually, intermediate pumping
Head and the second tap, 1 end of switch J31 are connected with the first tap, and 2 ends of switch J32 are connected with the second tap, and the 3 of switch J31
End and 4 ends pass through two metal-oxide-semiconductors respectively and are connected with the cathode of diode charging machine output end.
7. it is according to claim 1 for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger,
Be characterized in that: the auxiliary output winding terminal is equipped with diode D6, diode D7 and capacitor C2, anode and the auxiliary of diode D6
The one end for exporting winding is connected, and the cathode of diode D6 is connected with the anode of the cathode of diode D7 and capacitor C2, capacitor C2
Cathode be connected with the centre tap of auxiliary output winding, the both ends of capacitor C2 formation DC output end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448690.1A CN109624733A (en) | 2018-11-28 | 2018-11-28 | It is a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger |
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|---|---|---|---|
| CN201811448690.1A CN109624733A (en) | 2018-11-28 | 2018-11-28 | It is a kind of for the DC/DC converter of high speed electric vehicle and the consolidation circuit of Vehicular charger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380620A (en) * | 2019-06-17 | 2019-10-25 | 嘉善中正新能源科技有限公司 | A kind of inverter circuit for the two-way DC of high power vehicular |
| CN111452643A (en) * | 2020-03-30 | 2020-07-28 | 上海电气集团股份有限公司 | Vehicle-mounted charger, integrated circuit of vehicle-mounted DC/DC and electric automobile |
| WO2021003648A1 (en) * | 2019-07-08 | 2021-01-14 | 深圳欣锐科技股份有限公司 | Voltage conversion circuit of integrated vehicle-mounted charger |
| WO2021003650A1 (en) * | 2019-07-08 | 2021-01-14 | 深圳欣锐科技股份有限公司 | Voltage conversion circuit for integrated vehicle-mounted charger |
| WO2021003649A1 (en) * | 2019-07-08 | 2021-01-14 | 深圳欣锐科技股份有限公司 | Voltage conversion circuit of integrated vehicle-mounted charger |
| EP4258530A1 (en) * | 2022-04-07 | 2023-10-11 | Toyota Jidosha Kabushiki Kaisha | Power conversion apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110380620A (en) * | 2019-06-17 | 2019-10-25 | 嘉善中正新能源科技有限公司 | A kind of inverter circuit for the two-way DC of high power vehicular |
| CN110380620B (en) * | 2019-06-17 | 2024-03-19 | 嘉善中正新能源科技有限公司 | Inverter circuit for high-power vehicle-mounted bidirectional DC |
| WO2021003648A1 (en) * | 2019-07-08 | 2021-01-14 | 深圳欣锐科技股份有限公司 | Voltage conversion circuit of integrated vehicle-mounted charger |
| WO2021003650A1 (en) * | 2019-07-08 | 2021-01-14 | 深圳欣锐科技股份有限公司 | Voltage conversion circuit for integrated vehicle-mounted charger |
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| CN111452643A (en) * | 2020-03-30 | 2020-07-28 | 上海电气集团股份有限公司 | Vehicle-mounted charger, integrated circuit of vehicle-mounted DC/DC and electric automobile |
| CN111452643B (en) * | 2020-03-30 | 2023-01-31 | 上海电气集团股份有限公司 | Vehicle-mounted charger, vehicle-mounted DC/DC integrated circuit and electric vehicle |
| EP4258530A1 (en) * | 2022-04-07 | 2023-10-11 | Toyota Jidosha Kabushiki Kaisha | Power conversion apparatus |
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Application publication date: 20190416 |