CN110021926A - A kind of DC output circuit and charging pile - Google Patents
A kind of DC output circuit and charging pile Download PDFInfo
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- CN110021926A CN110021926A CN201910442102.1A CN201910442102A CN110021926A CN 110021926 A CN110021926 A CN 110021926A CN 201910442102 A CN201910442102 A CN 201910442102A CN 110021926 A CN110021926 A CN 110021926A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The application proposes a kind of DC output circuit and charging pile.N number of DC output unit is sequentially connected in series by series component, first pole of N number of DC output unit is connected to the corresponding first branch, anti-backflow device is correspondingly arranged in each first branch, the second pole of N number of DC output unit is connected to corresponding second branch.Switch the series connection or parallel connection between each DC output unit by series component and parallel component.By with anti-backflow device is set in the first of each DC output unit extremely adjacent each first branch, it is being switched to moment in parallel, prevent the output electric current of each road DC output unit from flowing backwards, so that the rush of current for avoiding voltage difference from generating easilys lead to device failure.
Description
Technical field
This application involves charging fields, in particular to a kind of DC output circuit and charging pile.
Background technique
With the development of technology, the bigger DC output power demand the bigger, in order to be compatible with high pressure and low-voltage, high-current, direct current
Output serial and parallel switching circuit is widely used.
Direct current output switches in series and parallel to be related to switching between two-way or multiple-channel output, when series circuit disconnects,
Due to the presence of output capacitance, output voltage will not directly be reduced to zero, and residual voltage not can guarantee absolutely equal, switch
For moment in parallel, two-way direct current output capacitor occurs that residual voltage is counter to be filled, and the rush of current that voltage difference generates easilys lead to derailing switch
Part damage.
Summary of the invention
The application's is designed to provide a kind of DC output circuit and charging pile, to solve the above problems.
To achieve the goals above, the embodiment of the present application the technical solution adopted is as follows:
In a first aspect, the embodiment of the present application provides a kind of DC output circuit, the circuit includes: series component, parallel connection
Component and N number of DC output unit, the parallel component include the N first branch, N second branch and N number of anti-backflow
Device, wherein N is the positive integer more than or equal to 2.
N number of DC output unit is sequentially connected in series by the series component；The first of N number of DC output unit
Pole is connected to the corresponding first branch；The anti-backflow dress is correspondingly arranged in the first branch described in each
It sets；Second pole of N number of DC output unit is connected to the corresponding second branch.
The series component is used to switch the series connection of the two neighboring DC output unit；
The parallel component is used to switch the parallel connection of DC output unit described in any two；
The anti-backflow device is used to prevent the output electric current backflow of the corresponding DC output unit.
Further, the anode of the described first extremely described DC output unit；The described second extremely described direct current output
The cathode of unit.
Further, when N is 2, N number of DC output unit is respectively the first DC output unit, the second direct current
Output unit；
The anode of second DC output unit is connected to first DC output unit by the series component
Cathode；
The parallel component further include: 2 second switches；
The second switch is respectively arranged at the second branch being connected with first DC output unit, described
The connected first branch of two DC output units.
Further, when N is the positive integer more than or equal to 3, N number of DC output unit includes: the first direct current
Output unit, the second DC output unit and N-2 third DC output unit；
The N-2 third DC output unit is sequentially connected in series by the series component；The second direct current output list
The anode of member is connected to the cathode of a third DC output unit；The cathode of first DC output unit is connected to
The anode of one third DC output unit；
The parallel component includes: 2N-2 second switch；
The second switch is respectively arranged at the second branch being connected with first DC output unit, described
The connected first branch of two DC output units, the third the DC output unit connected first branch and institute
State the connected second branch of third DC output unit.
Further, the series circuit includes N-1 first switch；N number of DC output unit passes through the N-1
A first switch is sequentially connected in series.
Alternatively, the cathode of the described first extremely described DC output unit；The described second extremely described DC output unit
Anode.
Further, when N is 2, N number of DC output unit is respectively the first DC output unit, the second direct current
Output unit；
The anode of second DC output unit is connected to first DC output unit by the series component
Cathode；
The parallel component further include: 2 second switches；
The second switch is respectively arranged at the first branch being connected with first DC output unit, described
The connected second branch of two DC output units.
Further, the anti-backflow device is diode or metal-oxide-semiconductor.
Further, when the anti-backflow device is metal-oxide-semiconductor, the DC output circuit further includes driving device；
The driving device is electrically connected with the metal-oxide-semiconductor；
The driving device is used to send out when each DC output unit is worked normally to the corresponding metal-oxide-semiconductor
Send trigger signal.
Second aspect, the embodiment of the present application provide a kind of charging pile, and the charging pile includes direct current described in first aspect
Output circuit.
Compared with the existing technology, the beneficial effect of a kind of DC output circuit and charging pile provided by the embodiment of the present application
Fruit: N number of DC output unit is sequentially connected in series by series component, and the first pole of N number of DC output unit is connected to correspondence
The first branch, anti-backflow device, the second pole difference of N number of DC output unit are correspondingly arranged in each first branch
It is connected to corresponding second branch.Switch the series connection between each DC output unit by series component and parallel component
Or parallel connection.By being filled with setting anti-backflow in the first of each DC output unit extremely adjacent each first branch
It sets, is being switched to moment in parallel, can prevent the output electric current of each road DC output unit from flowing backwards, to avoid voltage difference
The rush of current of generation easilys lead to device failure.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
The connection schematic diagram for the DC output circuit that Fig. 1 is N provided by the embodiments of the present application when being 2；
The connection for the DC output circuit that Fig. 2 is N provided by the embodiments of the present application when being positive integer more than or equal to 3 is shown
It is intended to；
Fig. 3 be provided by the embodiments of the present application first extremely cathode and N be 2 DC output circuit connection schematic diagram；
Fig. 4 is the connection of DC output circuit when anti-backflow device provided by the embodiments of the present application is diode and N is 2
Schematic diagram；
Fig. 5 is the connection of DC output circuit when anti-backflow device provided by the embodiments of the present application is metal-oxide-semiconductor and N is 2
Schematic diagram；
Fig. 6 is the connection block diagram of another DC output circuit provided by the embodiments of the present application.
In figure: 10- DC output unit；20- series component；30- parallel component；40- driving device；The first direct current of 101-
Output unit；The second DC output unit of 102-；103- third DC output unit；The 301- first branch；302- second branch；
303- anti-backflow device.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile the application's
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
In the description of the present application, it should be noted that the orientation or position of the instructions such as term " on ", "lower", "inner", "outside"
Set relationship be based on the orientation or positional relationship shown in the drawings or this application product using when the orientation or position usually put
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the application with concrete condition
In concrete meaning.
With reference to the accompanying drawing, it elaborates to some embodiments of the application.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1, Fig. 2 are please referred to, the embodiment of the invention provides a kind of DC output circuit, which is applied to
Charging pile or other power supply units.The DC output circuit includes: N number of DC output unit 10, series component 20 and parallel connection
Component 30.Wherein, parallel component 30 includes the N first branch 301, N second branch 302 and N number of anti-backflow device 303.
In order to make it easy to understand, the value of N is 2 in Fig. 1, but do not regard this as a limit, direct current output electricity provided in an embodiment of the present invention
Lu Zhong, N are the positive integer more than or equal to 2.
Please continue to refer to Fig. 1, Fig. 2, two DC output units 10 of arbitrary neighborhood are connected by series component 20, from
And N number of DC output unit 10 is sequentially connected in series by series component 20.First pole of N number of DC output unit 10 is connected to
The corresponding first branch 301 is correspondingly arranged on anti-backflow device 303 in each first branch 301.N number of direct current output list
Second pole of member 10 is connected to corresponding second branch 302.It is connected each other because of the N first branch 301 again, N item second
Branch 302 is connected each other, so any two DC output unit 10 can be parallel connection.
In one possible implementation, N number of DC output unit 10 can be different power module direct current output
Port, or different power circuits output inside the same power module, it is not limited here.
Two DC output units 10 of arbitrary neighborhood are connected by series component 20, so that series component 20 is for cutting
Change the series connection of two neighboring DC output unit 10.
Parallel component 30 is used to switch the parallel connection of any two DC output unit 10.
By switching series connection and parallel connection between each direct current supply unit 10, make the DC output circuit can
To meet different voltage requirements or current needs.In one possible implementation, pass through series component 20, parallel component
30 make each DC output unit 10 be one another in series, and export maximum voltage at this time；Alternatively, passing through series component 20, group in parallel
Part 30 makes each DC output unit 10 in parallel two-by-two, exports maximum current at this time.
Anti-backflow device 303 is used to prevent the output electric current backflow of corresponding DC output unit 10.A kind of possible
In implementation, DC output circuit switches in series and parallel to be related to switching between two-way or multiple-channel output, works as series circuit
When disconnection, due to the presence of output capacitance, output voltage will not directly be reduced to zero, and residual voltage not can guarantee absolute phase
Deng, anti-backflow device 303 for being switched to moment in parallel, the output electric current backflow of each road DC output unit is prevented, is prevented
Output capacitance occurs that residual voltage is counter fills, so that the rush of current for avoiding voltage difference from generating easilys lead to device failure.
In conclusion in DC output circuit provided in an embodiment of the present invention, by with each DC output unit
Anti-backflow device is set in first extremely adjacent each first branch, is being switched to moment in parallel, each road direct current can be prevented defeated
The output electric current of unit flows backwards that the residual voltage between output capacitance is counter to be filled out, thus the electric current punching for avoiding voltage difference from generating
It hits and easilys lead to device failure.
In one possible implementation, the anode of the first extremely DC output unit 10, the second extremely direct current output
The cathode of unit 10.
When the anode of the first extremely DC output unit 10, the cathode of the second extremely DC output unit 10, and when N=2,
For the connection relationship between DC output unit 10 and parallel component 30, the embodiment of the present invention also proposed a kind of possible reality
Existing mode, please continue to refer to Fig. 1:
2 DC output units 10 are respectively the first DC output unit 101, the second DC output unit 102.In parallel group
Part 30 further includes 2 second switch S2.
The anode of second DC output unit 102 is connected to the negative of the first DC output unit 101 by series component 20
Pole.
It is defeated that second switch S2 is respectively arranged at the second branch 302 being connected with the first DC output unit 101, the second direct current
The connected first branch 301 of unit 102 out.
When series component 20 disconnects, and two second switch S2 are closed, the first DC output unit 101 and the second direct current
Output unit 102 is parallel connection.When series component 20 is closed, and two second switch S2 are disconnected, the first direct current output list
Member 101 and the second DC output unit 102 are series connection.
When the anode of the first extremely DC output unit 10, the cathode of the second extremely DC output unit 10, and when N >=3,
For the connection relationship between DC output unit 10 and parallel component 30, the embodiment of the present invention also proposed a kind of possible reality
Existing mode, please continue to refer to Fig. 2:
N number of DC output unit 10 includes: the first DC output unit 101, the second DC output unit 102 and N-2
A third DC output unit 103.Parallel component 30 includes 2N-2 second switch S2.
By series component 20, N-2 third DC output unit 103 is sequentially connected in series, the second DC output unit 102
Anode is connected to the cathode of a third DC output unit 103, and the cathode of the first DC output unit 101 is connected to one
The anode of three DC output units 103.
It is defeated that second switch S2 is respectively arranged at the second branch 302 being connected with the first DC output unit 101, the second direct current
The connected first branch 301 of unit 102, third the DC output unit 103 connected first branch 301 and third direct current are defeated out
The connected second branch 302 of unit 103 out.
It, can be with by switching the state of series component 20 and each second switch S2 between each DC output unit 10
Select series connection between the DC output unit 10 and DC output unit 10 in switch operating of specific works and simultaneously
Connection state, so that the DC output circuit be made to can satisfy more different voltage requirements or current needs.For example, working as and first
The series component 20 and second switch S2 that DC output unit 101 is connected simultaneously switch off, then the first DC output unit 101 is not
It is in running order, i.e., it does not work.
Please continue to refer to Fig. 1, Fig. 2, in one possible implementation, series circuit 20 includes N-1 first switch
S1。
N number of DC output unit 10 is sequentially connected in series by N-1 first switch S1.
By switching the state of first switch S1, to switch the series connection of two neighboring DC output unit 10, such as
Shown in Fig. 1, when first switch S1 is closed, and each second switch S2 is disconnected, the first DC output unit 101 and the second direct current are defeated
Unit 102 is connected out.
In one possible implementation, the cathode of the first extremely DC output unit 10；Second extremely direct current output
The anode of unit 10.
When the cathode of the first extremely DC output unit 10；The anode of second extremely DC output unit 10, and when N=2,
For the connection relationship between DC output unit 10 and parallel component 30, the embodiment of the present invention also proposed a kind of possible reality
Existing mode, please refers to Fig. 3:
2 DC output units 10 are respectively the first DC output unit 101, the second DC output unit 102.In parallel group
Part 30 further includes 2 second switch S2.
The anode of second DC output unit 102 is connected to the negative of the first DC output unit 101 by series component 20
Pole.
Second switch S2 is respectively arranged at the first branch 301 being connected with the first DC output unit 101 and the second direct current
The connected second branch 302 of output unit 102.
When series component 20 disconnects, and two second switch S2 are closed, the first DC output unit 101 and the second direct current
Output unit 102 is parallel connection.When series component 20 is closed, and two second switch S2 are disconnected, the first direct current output list
Member 101 and the second DC output unit 102 are series connection.
On the basis of Fig. 1, the embodiment of the invention also provides a kind of possible implementations, please refer to Fig. 4, Fig. 5, prevent
Counterflow unit 303 uses diode or metal-oxide-semiconductor.In other possible implementations, on the basis of Fig. 2, Fig. 3, anti-backflow
Device 303 uses diode or metal-oxide-semiconductor, while needing adaptively to modify the connection relationship of anti-backflow device 303.
Referring to Fig. 6, the embodiment of the present invention also provides a kind of possible DC output circuit, anti-backflow device 303 is MOS
Pipe, for example, the metal-oxide-semiconductor in Fig. 5.DC output circuit further includes driving device 40.Wherein, driving device 40 and anti-backflow device
303 electrical connections.
Driving device 40 is used for when each DC output unit 10 works normally, and sends triggering letter to corresponding metal-oxide-semiconductor
Number.When metal-oxide-semiconductor receives trigger signal, the internal resistance of metal-oxide-semiconductor is reduced, to reduce the loss of circuit, saves the energy.
When each DC output unit 10 is in switching state (when series connection is switched to parallel connection or shape in parallel
When state is switched to series connection), trigger signal is not sent to corresponding metal-oxide-semiconductor, prevents the electric current backflow of output.
First switch S1 and second switch S2 in the embodiment of the present invention can use relay switch or metal-oxide-semiconductor.
The embodiment of the invention also provides a kind of charging pile, which includes above-mentioned DC output circuit, to realize
The corresponding technical effect of the DC output circuit.In addition to this, which further includes but is not limited to electric pile body, communication unit
Member, charging gun, electricity computing unit and charge unit.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case where without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and scope of the present application is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included in the application.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of DC output circuit, which is characterized in that the circuit includes: that series component, parallel component and N number of direct current are defeated
Unit out, the parallel component include the N first branch, N second branch and N number of anti-backflow device, wherein N be greater than
Or the positive integer equal to 2；
N number of DC output unit is sequentially connected in series by the series component；First pole of N number of DC output unit point
It is not connected to the corresponding first branch；The anti-backflow device is correspondingly arranged in the first branch described in each；Institute
The second pole for stating N number of DC output unit is connected to the corresponding second branch；
The series component is used to switch the series connection of the two neighboring DC output unit；
The parallel component is used to switch the parallel connection of DC output unit described in any two；
The anti-backflow device is used to prevent the output electric current backflow of the corresponding DC output unit.
2. DC output circuit as described in claim 1, which is characterized in that
The anode of the described first extremely described DC output unit；
The cathode of the described second extremely described DC output unit.
3. DC output circuit as claimed in claim 2, which is characterized in that when N is 2, N number of DC output unit point
It Wei not the first DC output unit, the second DC output unit；
The anode of second DC output unit is connected to the negative of first DC output unit by the series component
Pole；
The parallel component further include: 2 second switches；
The second switch is respectively arranged at the second branch being connected with first DC output unit, described second directly
Flow the connected first branch of output unit.
4. DC output circuit as claimed in claim 2, which is characterized in that when N is the positive integer more than or equal to 3, institute
Stating N number of DC output unit includes: the first DC output unit, the second DC output unit and N-2 third direct current output
Unit；
The N-2 third DC output unit is sequentially connected in series by the series component；Second DC output unit
Anode is connected to the cathode of a third DC output unit；The cathode of first DC output unit is connected to one
The anode of the third DC output unit；
The parallel component includes: 2N-2 second switch；
The second switch is respectively arranged at the second branch being connected with first DC output unit, described second directly
Flow the connected first branch of the connected first branch of output unit, the third DC output unit and described the
The connected second branch of three DC output units.
5. DC output circuit as described in claim 1, which is characterized in that the series circuit includes N-1 first switch；
N number of DC output unit is sequentially connected in series by the N-1 first switch.
6. DC output circuit as described in claim 1, which is characterized in that
The cathode of the described first extremely described DC output unit；
The anode of the described second extremely described DC output unit.
7. DC output circuit as claimed in claim 6, which is characterized in that when N is 2, N number of DC output unit point
It Wei not the first DC output unit, the second DC output unit；
The anode of second DC output unit is connected to the negative of first DC output unit by the series component
Pole；
The parallel component further include: 2 second switches；
The second switch is respectively arranged at the first branch being connected with first DC output unit, described second directly
Flow the connected second branch of output unit.
8. DC output circuit as described in claim 1, which is characterized in that
The anti-backflow device is diode or metal-oxide-semiconductor.
9. DC output circuit as claimed in claim 8, which is characterized in that described when the anti-backflow device is metal-oxide-semiconductor
DC output circuit further includes driving device；
The driving device is electrically connected with the metal-oxide-semiconductor；
The driving device is used for when each DC output unit works normally, and sends touching to the corresponding metal-oxide-semiconductor
It signals.
10. a kind of charging pile, which is characterized in that the charging pile includes any direct current output electricity of claim 1~9
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442102.1A CN110021926A (en) | 2019-05-24 | 2019-05-24 | A kind of DC output circuit and charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442102.1A CN110021926A (en) | 2019-05-24 | 2019-05-24 | A kind of DC output circuit and charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110021926A true CN110021926A (en) | 2019-07-16 |
Family
ID=67194405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910442102.1A Pending CN110021926A (en) | 2019-05-24 | 2019-05-24 | A kind of DC output circuit and charging pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994193A (en) * | 2021-05-06 | 2021-06-18 | 深圳市永联科技股份有限公司 | Charging protection circuit module and related product |
| CN114274826A (en) * | 2021-12-24 | 2022-04-05 | 阳光电源股份有限公司 | Direct-current voltage output switching circuit, switching method and charging pile power module |
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|---|---|---|---|---|
| US20060279259A1 (en) * | 2005-06-06 | 2006-12-14 | Abb Oy | Method and arrangement for charging capacitors of direct-voltage intermediate circuit of frequency converter |
| CN208127918U (en) * | 2018-03-27 | 2018-11-20 | 深圳市科华恒盛科技有限公司 | A kind of power distribution unit of DC charging system |
| CN208508566U (en) * | 2018-07-07 | 2019-02-15 | 深圳驿普乐氏科技有限公司 | A kind of DC power supply and its series-parallel circuit |
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2019
- 2019-05-24 CN CN201910442102.1A patent/CN110021926A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060279259A1 (en) * | 2005-06-06 | 2006-12-14 | Abb Oy | Method and arrangement for charging capacitors of direct-voltage intermediate circuit of frequency converter |
| CN208127918U (en) * | 2018-03-27 | 2018-11-20 | 深圳市科华恒盛科技有限公司 | A kind of power distribution unit of DC charging system |
| CN208508566U (en) * | 2018-07-07 | 2019-02-15 | 深圳驿普乐氏科技有限公司 | A kind of DC power supply and its series-parallel circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994193A (en) * | 2021-05-06 | 2021-06-18 | 深圳市永联科技股份有限公司 | Charging protection circuit module and related product |
| CN114274826A (en) * | 2021-12-24 | 2022-04-05 | 阳光电源股份有限公司 | Direct-current voltage output switching circuit, switching method and charging pile power module |
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Application publication date: 20190716 Assignee: Xi'an teride lingchong New Energy Technology Co., Ltd Assignor: Xi'an TGOOD Intelligent Charging Technology Co.,Ltd. Contract record no.: X2020370010026 Denomination of invention: A DC output circuit and charging pile License type: Common License Record date: 20201130 |
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