WO2013075623A1 - Dc/dc bidirectional converter - Google Patents

Dc/dc bidirectional converter Download PDF

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Publication number
WO2013075623A1
WO2013075623A1 PCT/CN2012/084942 CN2012084942W WO2013075623A1 WO 2013075623 A1 WO2013075623 A1 WO 2013075623A1 CN 2012084942 W CN2012084942 W CN 2012084942W WO 2013075623 A1 WO2013075623 A1 WO 2013075623A1
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WO
WIPO (PCT)
Prior art keywords
transformer
coil
switch
bidirectional converter
terminal
Prior art date
Application number
PCT/CN2012/084942
Other languages
French (fr)
Inventor
Shichao Chen
Shulin Liang
Xiaohua Tang
Original Assignee
Shenzhen Byd Auto R&D Company Limited
Byd Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Byd Auto R&D Company Limited, Byd Company Limited filed Critical Shenzhen Byd Auto R&D Company Limited
Publication of WO2013075623A1 publication Critical patent/WO2013075623A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • 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
    • H02M3/33569—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 having several active switching elements
    • H02M3/33576—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 having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33584—Bidirectional converters

Definitions

  • the present disclosure generally relates to a converter, and more particularly to a DC/DC bidirectional converter.
  • a DC/DC bidirectional converter is configured to realize a buck or a boost function.
  • the DC/DC bidirectional converter adopts an extra boost circuit to realize the boost function and an extra buck circuit to realize the buck function.
  • the extra boost circuit and buck circuit may result in a large size, a heavy weight and a high cost of the DC/DC bidirectional converter.
  • a DC/DC bidirectional converter may need to be provided, which may reduce a size, a weight and a cost of the DC/DC bidirectional converter.
  • a DC/DC bidirectional converter may comprise: a first transformer with a variable turns ratio, a second transformer with a variable turns ratio, a first switch, a second switch, a high voltage control module and a low voltage control module.
  • the first switch and the second switch are configured to switch on alternately to control the turns ratio of the first transformer and the turns ratio of the second transformer, in which a secondary coil of the first transformer and a secondary coil of the second transformer are connected via the first switch or the second switch.
  • the high voltage control module is used for high voltage AC/DC conversion.
  • the high voltage control module has a first terminal for inputting and outputting a high voltage and a second terminal connected with the secondary coil of the second transformer and the secondary coil of the first transformer respectively.
  • the low voltage control module is used for low voltage AC/DC conversion.
  • the low voltage control module has a fourth terminal for inputting and outputting a low voltage and a third terminal connected with a primary coil of the first transformer and a primary coil of the second transformer respectively.
  • the DC/DC bidirectional converter by varying the turns ratio of the first transformer and the turns ratio of the second transformer, a boost and buck function may be realized without any extra boost circuit or buck circuit.
  • the DC/DC bidirectional converter has advantages of small size, light weight and low cost. Because the DC/DC bidirectional converter adopts two transformers to share a total power, a size of a single transformer can be reduced, and the size of the DC/DC bidirectional converter is reduced accordingly. In addition, the DC/DC bidirectional converter with a small size also has advantages of easy control, high efficiency and good reliability.
  • Fig. 1 is a schematic diagram view showing a structure of a DC/DC bidirectional converter according to an exemplary embodiment of the present disclosure.
  • Fig. 2 is a schematic diagram showing a circuit of the DC/DC bidirectional converter according to an exemplary embodiment of the present disclosure.
  • the DC/DC bidirectional converter may comprise a first transformer Tl with a variable turns ratio, a second transformer T2 with a variable turns ratio, a first switch Kl, a second switch K2, a high voltage control module 1 and a low voltage control module 2.
  • the first switch Kl and the second switch K2 are configured to switch on alternately to control the turns ratio of the first transformer Tl and the turns ratio of the second transformer T2.
  • a secondary coil of the first transformer Tl and a secondary coil of the second transformer T2 are connected via the first switch Kl or the second switch K2.
  • the high voltage control module 1 is used for high voltage AC/DC conversion.
  • the high voltage control module 1 has first terminals (V1+ and V1-) for inputting and outputting a high voltage respectively, and second terminals connected with the secondary coil of the second transformer T2 and the secondary coil of the first transformer Tl respectively.
  • the low voltage control module 2 is used for low voltage AC/DC conversion.
  • the low voltage control module 2 has fourth terminals (V2+ and V2-) for inputting and outputting a low voltage respectively, and third terminals connected with a primary coil of the first transformer Tl and a primary coil of the second transformer T2 respectively.
  • the high voltage may range from about 330V to about 570V, and the low voltage may range from about 9V to about 16V.
  • the secondary coil of the first transformer Tl may comprise a first coil LI and a second coil L2.
  • a first end of the first coil LI and a first end of the second coil L2 are led out as a first common terminal.
  • the secondary coil of the second transformer T2 may comprise a third coil L3 and a fourth coil L4.
  • a first end of the third coil L3 and a first end of the fourth coil L4 are led out as a second common terminal.
  • the second terminal of the high voltage control module 1 is connected with a second end of the first coil LI and a second end of the third coil L3 respectively.
  • a first end of the first switch Kl is connected with the first common terminal, and a second end of the first switch Kl is connected with the second common terminal.
  • a first end of the second switch K2 is connected with a second end of the second coil L2 and a second end of the second switch K2 is connected with a second end of the fourth coil L3.
  • Fig. 2 is a schematic circuit diagram showing the DC/DC bidirectional converter according to an exemplary embodiment of the present disclosure.
  • the low voltage control module 1 comprises a first push-pull circuit and a second push-pull circuit.
  • the first push-pull circuit is connected to the primary coil of the first transformer Tl
  • the second push-pull circuit is connected to the primary coil of the second transformer T2
  • the first push-pull circuit and the second push-pull circuit are connected in parallel.
  • the first push-pull circuit may comprise a first transistor Q5 and a second transistor Q6, and the second push-pull circuit may comprise a third transistor Q7 and a fourth transistor Q8.
  • the high voltage control module 1 is a phase-shift full bridge circuit, which may comprise a first IGBT Ql, a second IGBT Q2, a third IGBT Q3 and a fourth IGBT Q4.
  • the first IGBT Ql, the second IGBT Q2, the third IGBT Q3 and the fourth IGBT Q4 forming a bridge connection are used as a switch.
  • the phase-shift full bridge circuit may adopt a MOSFET as the switch.
  • an input terminal of the phase-shift full bridge circuit is the first terminal of the high voltage control module 1
  • an output terminal of the phase-shift full bridge circuit is the second terminal of the high voltage control module 1.
  • first transformer Tl and the second transformer T2 may have a same parameter, such as a transformation ratio, a power rating, a frequency characteristic and an efficiency.
  • a boost process and a buck process of the DC/DC bidirectional converter will be described in detail as follows.
  • the first switch Kl switches on and the second switch K2 switches off, so that the first coil LI of the first transformer Tl and the third coil L3 of the second transformer T2 are selected to work, that is, the first coil LI and the third coil L3 are connected in series.
  • a high voltage DC (direct current ) electricity inputted from the first terminal of the high voltage control module 1 is converted into a high voltage AC (alternating current ) electricity via the phase-shift full bridge circuit, then is bucked via the first transformer Tl and the second transformer T2 to be inputted to the third terminal of the low voltage control module 2, and then is converted back into a low voltage DC electricity via the first push-pull circuit and the second push-pull circuit to be outputted from the fourth terminal of the low voltage control module 2.
  • the first switch Kl switches off and the second switch K2 switches on, so that the secondary coil of the first transformer Tl and the secondary coil of the second transformer T2 are connected in series.
  • a low voltage DC electricity inputted from the fourth terminal of the low voltage control module 2 is converted into a low voltage AC electricity via the first push-pull circuit and the second push-pull circuit, then is boosted via the first transformer Tl and the second transformer T2 to be inputted to the second terminal of the high voltage control module 1, and then is converted back into a high voltage DC electricity via the phase-shift full bridge circuit to be outputted from the first terminal of the high voltage control module 1.
  • the boost and buck function may be realized without any extra boost circuit or buck circuit.
  • the DC/DC bidirectional converter has advantages of small size, light weight and low cost. Because the DC/DC bidirectional converter adopts two transformers to share a total power, a size of a single transformer can be reduced, and the size of the DC/DC bidirectional converter is reduced accordingly. In addition, the DC/DC bidirectional converter with a small size also has advantages of easy control, high efficiency and good reliability.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A DC/DC bidirectional converter comprises: a first transformer (Tl ) with a variable turn ratio, a second transformer (T2) with a variable turn ratio, a first switch (Kl), a second switch (K2), a high voltage control module (1) and a low voltage control module (2). The first switch (Kl) and the second switch (K2) are configured to switch on alternately to control the turn ratio of the first transformer (Tl) and the turn ratio of the second transformer (T2), in which a secondary coil of the first transformer (Tl) and a second coil of the second transformer (T2) are connected via the first switch (Kl) or the second switch (K2). The high voltage control module (1) is used for high voltage AC/DC conversion and the low voltage control module (2) is used for low voltage AC/DC conversion. The DC/DC bidirectional converter has advantages of small size, light weight and low cost.

Description

DC/DC BIDIRECTIONAL CONVERTER
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority to and benefits of Chinese Patent Application No. 201120475396.7, filed with the State Intellectual Property Office of P. R. C. on November 25, 2011, the entire contents of which are incorporated herein by reference.
FIELD
The present disclosure generally relates to a converter, and more particularly to a DC/DC bidirectional converter.
BACKGROUND
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
Usually, a DC/DC bidirectional converter is configured to realize a buck or a boost function.
Conventionally, the DC/DC bidirectional converter adopts an extra boost circuit to realize the boost function and an extra buck circuit to realize the buck function. However, the extra boost circuit and buck circuit may result in a large size, a heavy weight and a high cost of the DC/DC bidirectional converter.
SUMMARY
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In viewing thereof, the present disclosure is directed to solve at least one of the problems existing in the prior art. Accordingly, a DC/DC bidirectional converter may need to be provided, which may reduce a size, a weight and a cost of the DC/DC bidirectional converter.
According to a first aspect of the present disclosure, a DC/DC bidirectional converter is provided. The DC/DC bidirectional converter may comprise: a first transformer with a variable turns ratio, a second transformer with a variable turns ratio, a first switch, a second switch, a high voltage control module and a low voltage control module. The first switch and the second switch are configured to switch on alternately to control the turns ratio of the first transformer and the turns ratio of the second transformer, in which a secondary coil of the first transformer and a secondary coil of the second transformer are connected via the first switch or the second switch. The high voltage control module is used for high voltage AC/DC conversion. The high voltage control module has a first terminal for inputting and outputting a high voltage and a second terminal connected with the secondary coil of the second transformer and the secondary coil of the first transformer respectively. The low voltage control module is used for low voltage AC/DC conversion. The low voltage control module has a fourth terminal for inputting and outputting a low voltage and a third terminal connected with a primary coil of the first transformer and a primary coil of the second transformer respectively.
With the DC/DC bidirectional converter according to embodiments of the present disclosure, by varying the turns ratio of the first transformer and the turns ratio of the second transformer, a boost and buck function may be realized without any extra boost circuit or buck circuit. The DC/DC bidirectional converter has advantages of small size, light weight and low cost. Because the DC/DC bidirectional converter adopts two transformers to share a total power, a size of a single transformer can be reduced, and the size of the DC/DC bidirectional converter is reduced accordingly. In addition, the DC/DC bidirectional converter with a small size also has advantages of easy control, high efficiency and good reliability.
Other advantages and features of the disclosure are described below.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other aspects and advantages of the disclosure will become apparent and more readily appreciated from the following descriptions taken in conjunction with the drawings in which:
Fig. 1 is a schematic diagram view showing a structure of a DC/DC bidirectional converter according to an exemplary embodiment of the present disclosure; and
Fig. 2 is a schematic diagram showing a circuit of the DC/DC bidirectional converter according to an exemplary embodiment of the present disclosure.
DETAILED DESCRIPTION Embodiments of the present disclosure will be described in detail in the following descriptions, examples of which are shown in the drawings, in which the same or similar elements and elements having same or similar functions are denoted by like reference numerals throughout the descriptions. It is to be understood that, the embodiments described herein are merely used to generally understand the present disclosure, but shall not be construed to limit the present disclosure.
In the following, a DC/DC bidirectional converter will be described in detail, in which like numerals refer to like elements through the drawings.
As shown in Fig. 1, a DC/DC bidirectional converter is provided. The DC/DC bidirectional converter may comprise a first transformer Tl with a variable turns ratio, a second transformer T2 with a variable turns ratio, a first switch Kl, a second switch K2, a high voltage control module 1 and a low voltage control module 2.
The first switch Kl and the second switch K2 are configured to switch on alternately to control the turns ratio of the first transformer Tl and the turns ratio of the second transformer T2. A secondary coil of the first transformer Tl and a secondary coil of the second transformer T2 are connected via the first switch Kl or the second switch K2.
The high voltage control module 1 is used for high voltage AC/DC conversion. The high voltage control module 1 has first terminals (V1+ and V1-) for inputting and outputting a high voltage respectively, and second terminals connected with the secondary coil of the second transformer T2 and the secondary coil of the first transformer Tl respectively.
The low voltage control module 2 is used for low voltage AC/DC conversion. The low voltage control module 2 has fourth terminals (V2+ and V2-) for inputting and outputting a low voltage respectively, and third terminals connected with a primary coil of the first transformer Tl and a primary coil of the second transformer T2 respectively.
In an embodiment, the high voltage may range from about 330V to about 570V, and the low voltage may range from about 9V to about 16V.
In an embodiment, the secondary coil of the first transformer Tl may comprise a first coil LI and a second coil L2. A first end of the first coil LI and a first end of the second coil L2 are led out as a first common terminal. The secondary coil of the second transformer T2 may comprise a third coil L3 and a fourth coil L4. A first end of the third coil L3 and a first end of the fourth coil L4 are led out as a second common terminal. In an embodiment, the second terminal of the high voltage control module 1 is connected with a second end of the first coil LI and a second end of the third coil L3 respectively. A first end of the first switch Kl is connected with the first common terminal, and a second end of the first switch Kl is connected with the second common terminal. A first end of the second switch K2 is connected with a second end of the second coil L2 and a second end of the second switch K2 is connected with a second end of the fourth coil L3.
Fig. 2 is a schematic circuit diagram showing the DC/DC bidirectional converter according to an exemplary embodiment of the present disclosure. As shown in Fig. 2, the low voltage control module 1 comprises a first push-pull circuit and a second push-pull circuit. The first push-pull circuit is connected to the primary coil of the first transformer Tl, the second push-pull circuit is connected to the primary coil of the second transformer T2, and the first push-pull circuit and the second push-pull circuit are connected in parallel. In an embodiment, the first push-pull circuit may comprise a first transistor Q5 and a second transistor Q6, and the second push-pull circuit may comprise a third transistor Q7 and a fourth transistor Q8.
The high voltage control module 1 is a phase-shift full bridge circuit, which may comprise a first IGBT Ql, a second IGBT Q2, a third IGBT Q3 and a fourth IGBT Q4. The first IGBT Ql, the second IGBT Q2, the third IGBT Q3 and the fourth IGBT Q4 forming a bridge connection are used as a switch. Alternatively, the phase-shift full bridge circuit may adopt a MOSFET as the switch.
In an embodiment, an input terminal of the phase-shift full bridge circuit is the first terminal of the high voltage control module 1 , and an output terminal of the phase-shift full bridge circuit is the second terminal of the high voltage control module 1.
Furthermore, the first transformer Tl and the second transformer T2 may have a same parameter, such as a transformation ratio, a power rating, a frequency characteristic and an efficiency.
A boost process and a buck process of the DC/DC bidirectional converter will be described in detail as follows.
For the buck process, the first switch Kl switches on and the second switch K2 switches off, so that the first coil LI of the first transformer Tl and the third coil L3 of the second transformer T2 are selected to work, that is, the first coil LI and the third coil L3 are connected in series. A high voltage DC (direct current ) electricity inputted from the first terminal of the high voltage control module 1 is converted into a high voltage AC (alternating current ) electricity via the phase-shift full bridge circuit, then is bucked via the first transformer Tl and the second transformer T2 to be inputted to the third terminal of the low voltage control module 2, and then is converted back into a low voltage DC electricity via the first push-pull circuit and the second push-pull circuit to be outputted from the fourth terminal of the low voltage control module 2.
For the boost process, the first switch Kl switches off and the second switch K2 switches on, so that the secondary coil of the first transformer Tl and the secondary coil of the second transformer T2 are connected in series. A low voltage DC electricity inputted from the fourth terminal of the low voltage control module 2 is converted into a low voltage AC electricity via the first push-pull circuit and the second push-pull circuit, then is boosted via the first transformer Tl and the second transformer T2 to be inputted to the second terminal of the high voltage control module 1, and then is converted back into a high voltage DC electricity via the phase-shift full bridge circuit to be outputted from the first terminal of the high voltage control module 1.
With the DC/DC bidirectional converter according to embodiments of the present disclosure, by varying the turns ratio of the first transformer and the turns ratio of the second transformer , the boost and buck function may be realized without any extra boost circuit or buck circuit. The DC/DC bidirectional converter has advantages of small size, light weight and low cost. Because the DC/DC bidirectional converter adopts two transformers to share a total power, a size of a single transformer can be reduced, and the size of the DC/DC bidirectional converter is reduced accordingly. In addition, the DC/DC bidirectional converter with a small size also has advantages of easy control, high efficiency and good reliability.
Although explanatory embodiments have been shown and described, it would be appreciated by those skilled in the art that changes, alternatives, and modifications may be made in the embodiments without departing from spirit and principles of the disclosure. Such changes, alternatives, and modifications all fall into the scope of the claims and their equivalents.

Claims

WHAT IS CLAIMED IS:
1. A DC/DC bidirectional converter, comprising:
a first transformer with a variable turns ratio;
a second transformer with a variable turns ratio;
a first switch and a second switch configured to switch on alternately to control the turns ratio of the first transformer and the turns ratio of the second transformer, wherein a secondary coil of the first transformer and a secondary coil of the second transformer are connected via the first switch or the second switch;
a high voltage control module for high voltage AC/DC conversion, with a first terminal for inputting and outputting a high voltage and a second terminal connected with the secondary coil of the second transformer and the secondary coil of the first transformer respectively; and
a low voltage control module for low voltage AC/DC conversion, with a fourth terminal for inputting and outputting a low voltage and a third terminal connected with a primary coil of the first transformer and a primary coil of the second transformer respectively.
2. The DC/DC bidirectional converter according to claim 1, wherein the secondary coil of the first transformer comprises a first coil and a second coil, and a first end of the first coil and a first end of the second coil are led out as a first common terminal.
3. The DC/DC bidirectional converter according to claim 1 or 2, wherein the secondary coil of the second transformer comprises a third coil and a fourth coil, and a first end of the third coil and a first end of the fourth coil are led out as a second common terminal.
4. The DC/DC bidirectional converter according to claim 3, wherein
the second terminal of the high voltage control module is connected with a second end of the first coil and a second end of the third coil respectively;
a first end of the first switch is connected with the first common terminal, and a second end of the first switch is connected with the second common terminal; and
a first end of the second switch is connected with a second end of the second coil and a second end of the second switch is connected with a second end of the fourth coil.
5. The DC/DC bidirectional converter of any of claims 1-4, wherein the low voltage control module comprises a first push-pull circuit and a second push-pull circuit, the first push-pull circuit is connected to the primary coil of the first transformer, the second push-pull circuit is connected to the primary coil of the second transformer, and the first push-pull circuit and the second push-pull circuit are connected in parallel.
6. The DC/DC bidirectional converter according to claim 5, wherein an input terminal of the first push-pull circuit and an input terminal of the second push-pull circuit are the third terminal of the low voltage control module, and an output terminal of the first push-pull circuit and an output terminal of the second push-pull circuit are the fourth terminal of the low voltage control module.
7. The DC/DC bidirectional converter according to any of claims 1-6, wherein the first push-pull circuit and the second push-pull circuit comprise a transistor respectively.
8. The DC/DC bidirectional converter according to any of claims 1-7, wherein the high voltage control module is a phase-shift full bridge circuit.
9. The DC/DC bidirectional converter according to claim 8, wherein the phase-shift full bridge circuit comprises an IGBT as a switch.
10. The DC/DC bidirectional converter according to claim 8, wherein the phase-shift full bridge circuit comprises a MOSFET as a switch.
11. The DC/DC bidirectional converter of any of claims 8-10, wherein an input terminal of the phase-shift full bridge circuit is the first terminal of the high voltage control module, and an output terminal of the phase-shift full bridge circuit is the second terminal of the high voltage control module.
12. The DC/DC bidirectional converter according to any of claims 1-11, wherein the first transformer and the second transformer have a same parameter comprising a transformation ratio, a power rating, a frequency characteristic and an efficiency.
13. The DC/DC bidirectional converter according to any of claims 1-12, wherein the high voltage ranges from about 330V to about 570V.
14. The DC/DC bidirectional converter according to any of claims 1-13, wherein the low voltage ranges from about 9V to about 16V.
PCT/CN2012/084942 2011-11-25 2012-11-21 Dc/dc bidirectional converter WO2013075623A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201120475396 CN202374182U (en) 2011-11-25 2011-11-25 DC/DC (Direct Current/Direct Current) bidirectional converter
CN201120475396.7 2011-11-25

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US10581334B2 (en) 2017-02-04 2020-03-03 Abb Schweiz Ag DC-DC converter and control method
CN112455177A (en) * 2019-09-09 2021-03-09 冷王公司 Transport climate control system with self-configuring matrix power converter
US11192451B2 (en) 2018-09-19 2021-12-07 Thermo King Corporation Methods and systems for energy management of a transport climate control system
US11260723B2 (en) 2018-09-19 2022-03-01 Thermo King Corporation Methods and systems for power and load management of a transport climate control system
US11993131B2 (en) 2018-12-31 2024-05-28 Thermo King Llc Methods and systems for providing feedback for a transport climate control system

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CN202374182U (en) * 2011-11-25 2012-08-08 比亚迪股份有限公司 DC/DC (Direct Current/Direct Current) bidirectional converter
WO2015004825A1 (en) * 2013-07-11 2015-01-15 三菱電機株式会社 Dc-dc converter
CN104868731B (en) * 2014-02-21 2017-09-29 东莞钜威动力技术有限公司 Two-way isolation DC DC converters
CN105576956B (en) * 2014-11-05 2019-11-19 中兴通讯股份有限公司 Power circuit and Switching Power Supply
CN111490588B (en) * 2020-04-02 2023-07-14 国网浙江省电力有限公司杭州供电公司 Method for realizing mutual backup of communication power supply and operation power supply of transformer substation

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CN202374182U (en) * 2011-11-25 2012-08-08 比亚迪股份有限公司 DC/DC (Direct Current/Direct Current) bidirectional converter

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CN202374182U (en) * 2011-11-25 2012-08-08 比亚迪股份有限公司 DC/DC (Direct Current/Direct Current) bidirectional converter

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FR3014260A1 (en) * 2013-12-03 2015-06-05 Renault Sa METHOD AND SYSTEM FOR CONTROLLING A BIDIRECTIONAL CHARGER OF A MOTOR VEHICLE BATTERY.
US10581334B2 (en) 2017-02-04 2020-03-03 Abb Schweiz Ag DC-DC converter and control method
US11192451B2 (en) 2018-09-19 2021-12-07 Thermo King Corporation Methods and systems for energy management of a transport climate control system
US11260723B2 (en) 2018-09-19 2022-03-01 Thermo King Corporation Methods and systems for power and load management of a transport climate control system
US11993131B2 (en) 2018-12-31 2024-05-28 Thermo King Llc Methods and systems for providing feedback for a transport climate control system
CN112455177A (en) * 2019-09-09 2021-03-09 冷王公司 Transport climate control system with self-configuring matrix power converter
EP3790141A1 (en) * 2019-09-09 2021-03-10 Thermo King Corporation Transport climate control system with a self-configuring matrix power converter
US11376922B2 (en) 2019-09-09 2022-07-05 Thermo King Corporation Transport climate control system with a self-configuring matrix power converter

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