CN114553030A - Stack formula fills electric pile - Google Patents
Stack formula fills electric pile Download PDFInfo
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- CN114553030A CN114553030A CN202210209358.XA CN202210209358A CN114553030A CN 114553030 A CN114553030 A CN 114553030A CN 202210209358 A CN202210209358 A CN 202210209358A CN 114553030 A CN114553030 A CN 114553030A
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- rectifying module
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- 238000010586 diagram Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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Classifications
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2173—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses a stacked charging pile, which comprises: a transformer of the charging pile is respectively connected with a high-voltage rectifying module and a low-voltage rectifying module which are connected in parallel; the high-voltage rectification module and the low-voltage rectification module are respectively connected with the inversion module in parallel; the inversion module is connected with a battery control module BMS; when the transformer is only connected with the high-voltage rectifying module, the transformer, the high-voltage rectifying module and the inverter are connected to form a secondary adjustment superposed circuit, and the secondary adjustment superposed circuit carries out low-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS; when the transformer is connected with the high-voltage rectifying module and the low-voltage rectifying module at the same time, the transformer, the high-voltage rectifying module, the low-voltage rectifying module and the inverter are connected to form a three-level adjustment superposition circuit, and the three-level adjustment superposition circuit is used for carrying out high-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS. The problem of prior art fill electric pile series connection a plurality of inverters, lead to filling electric pile's output too big, with high costs, the security is low is solved.
Description
Technical Field
The invention relates to the technical field of electric automobile charging, in particular to a stacked charging pile.
Background
The existing electric automobile charging pile is generally formed by connecting a plurality of inverters in parallel so as to improve the power of the charging pile and output rated voltage to charge the electric automobile. This just leads to filling electric pile's contravariant power too big, and is with high costs, and the security is low.
Disclosure of Invention
In order to solve the above problems, the present invention provides a stacked charging pile, including: a transformer of the charging pile is respectively connected with the high-voltage rectifying module and the low-voltage rectifying module which are connected in parallel; the high-voltage rectification module and the low-voltage rectification module are respectively connected with the inversion module in parallel; the inversion module is connected with a battery control module BMS;
when the transformer is only connected to the high-voltage rectifying module, the transformer, the high-voltage rectifying module and the inverter are connected to form a secondary adjustment superposed circuit, and the secondary adjustment superposed circuit performs low-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS;
when the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, the transformer, the high-voltage rectifying module, the low-voltage rectifying module and the inverter are connected to form a three-level adjustment superposition circuit, and the three-level adjustment superposition circuit is used for carrying out high-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS.
Further, after the transformer is only connected to the high voltage rectification module, the transformer, the high voltage rectification module and the inverter are connected to form a two-stage adjustment stacked circuit, which includes:
when the transformer is only connected to the high-voltage rectifying module, the input voltage is the initial voltage V0 of the transformer, and after the high-voltage rectifying module is connected in parallel with the inverting module, the voltage output by the inverting module is V1;
the output voltage of the two-stage regulation superposition circuit is V0+ V1.
Further, the method also comprises the following steps: the output power P of the two-stage regulation and superposition circuit is I (V0+ V1), where I is the output current of the inverter module.
Further, the second grade adjustment stack formula circuit passes through battery control module BMS carries out low voltage charging for electric automobile's on-vehicle battery, includes:
the initial voltage V0 is specifically a controllable voltage of 0-60V, the voltage output by the inverter module is specifically V1 which is direct current 480V, and the output voltage range of the two-stage adjustment superposition circuit is specifically 480V-540V;
the secondary regulation superposed circuit provides 480V-540V low-voltage charging for a vehicle-mounted battery of the electric automobile through the battery control module BMS.
Further, when the transformer is connected to the high voltage rectifier module and the low voltage rectifier module at the same time, the transformer, the high voltage rectifier module, the low voltage rectifier module and the inverter are connected to form a three-level adjustment stacked circuit, which includes:
when the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, the input voltage of the high-voltage rectifying module is the initial voltage V0 of the transformer, and the input voltage of the low-voltage rectifying module is V2;
when the high-voltage rectifying module and the low-voltage rectifying module are respectively connected with the inverter in parallel, the voltage output by the inverter module is V1;
the output voltage of the three-level adjustment and superposition type circuit is V0+ V1+ V2.
Further, the method also comprises the following steps: the output power P of the three-level regulation and superposition circuit is I (V0+ V1+ V2), where I is the output current of the inverter module.
Further, tertiary adjustment stack formula circuit passes through battery control module BMS carries out high-voltage charging for electric automobile's on-vehicle battery, includes:
the initial voltage V0 is specifically a controllable voltage of 0-60V, the voltage output by the inverter module is specifically V1 which is direct current 480V, and the input voltage V2 of the low-voltage rectifier module is specifically 60V;
the three-level adjustment superposition type circuit provides 640V-700V high-voltage charging for a vehicle-mounted battery of the electric automobile through the battery control module BMS.
Further, the high-voltage rectification module and the low-voltage rectification module specifically adopt rectification diodes.
According to the stacked charging pile, the fixed voltage is improved, the requirement on inversion voltage is reduced, the power consumption is low, and the requirement on an inverter is lower through the stacked rectifying module; the rectifier module adopts a rectifier diode, so that the cost is low, the supply is stable, and the cost of the whole charging pile can be reduced; and a primary fixed voltage is superposed, so that the reliability is higher. The problem of electric automobile fill electric pile series connection a plurality of inverters under the prior art, lead to filling electric pile's output too big, with high costs, the security is low is solved.
Drawings
FIG. 1 is a schematic diagram of a primary rectifier circuit according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a two-level trim stack according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a two-stage rectifier circuit according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a three-level adjustment stacked circuit according to an embodiment of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as limited to the embodiments set forth herein.
The invention provides a stacked charging pile, which is simple in structure and high in safety, and the output voltage of the charging pile is improved by connecting a rectifying module and an inverting module, and further, the voltages with different voltage values can be output according to the requirements of a vehicle-mounted battery. Stake is filled to stack formula is specific, include:
a transformer of the charging pile is respectively connected with the high-voltage rectifying module and the low-voltage rectifying module which are connected in parallel; the high-voltage rectification module and the low-voltage rectification module are respectively connected with the inversion module in parallel; the inversion module is connected with a battery control module BMS;
when the transformer is only connected to the high-voltage rectifying module, the transformer, the high-voltage rectifying module and the inverter are connected to form a secondary adjustment superposed circuit, and the secondary adjustment superposed circuit performs low-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS;
when the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, the transformer, the high-voltage rectifying module, the low-voltage rectifying module and the inverter are connected to form a three-level adjustment superposition circuit, and the three-level adjustment superposition circuit is used for carrying out high-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS.
As shown in fig. 1, the transformer is connected with a rectifier module to form a fixed voltage module, then connected with the inverter system in parallel, and finally connected with the BMS battery control system for charging, i.e. a primary rectifier circuit.
When the transformer is only connected to the high-voltage rectifying module, the input voltage is the initial voltage V0 of the transformer, and after the high-voltage rectifying module is connected in parallel with the inverting module, the voltage output by the inverting module is V1; a two-level adjustment stacked circuit is constructed as shown in fig. 2. The output voltage of the two-stage regulation superposition circuit is V0+ V1. The output power P of the two-stage regulation and superposition circuit is I (V0+ V1), where I is the output current of the inverter module.
The initial voltage V0 is specifically a controllable voltage of 0-60V, the voltage output by the inverter module is specifically V1 which is direct current 480V, and the output voltage range of the two-stage adjustment superposition circuit is specifically 480V-540V; the secondary regulation superposed circuit provides 480V-540V low-voltage charging for a vehicle-mounted battery of the electric automobile through the battery control module BMS.
The vehicle-mounted battery is charged at low voltage as required, and a single-pole double-throw switch is arranged before the vehicle-mounted battery is connected into a vehicle-mounted battery system, so that a fixed voltage module can be flexibly selected for normal illumination. At the moment, V1 is smaller, so that the requirement on inverter power is reduced, and the cost is reduced.
As shown in fig. 3, the transformer is connected to two associated rectifier modules, that is, the high-voltage rectifier module and the low-voltage rectifier module are connected to the transformer at the same time, and then connected to the inverter system in parallel, and finally connected to the BMS battery control system for charging, that is, the secondary rectifier circuit.
When the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, the input voltage of the high-voltage rectifying module is the initial voltage V0 of the transformer, and the input voltage of the low-voltage rectifying module is V2;
when the high-voltage rectifying module and the low-voltage rectifying module are respectively connected with the inverter in parallel, the voltage output by the inverter module is V1; a three-level adjustment stacked circuit is constructed as shown in fig. 4. The output voltage of the three-level adjustment and superposition type circuit is V0+ V1+ V2. The output power P of the three-level regulation and superposition circuit is I (V0+ V1+ V2), where I is the output current of the inverter module.
The initial voltage V0 is specifically a controllable voltage of 0-60V, the voltage output by the inverter module is specifically V1 which is direct current 480V, and the input voltage V2 of the low-voltage rectifier module is specifically 60V; the three-level adjustment superposition type circuit provides 640V-700V high-voltage charging for a vehicle-mounted battery of the electric automobile through the battery control module BMS.
The vehicle-mounted battery is charged at high voltage as required, and a single-pole double-throw switch is arranged before the vehicle-mounted battery is connected into a vehicle-mounted battery system, so that a fixed voltage module can be flexibly selected for normal illumination. At this point, V1 is smaller, further reducing the inverter power requirements.
The high-voltage rectifying module and the low-voltage rectifying module particularly adopt rectifying diodes, so that the cost is low, and the cost of the whole system can be reduced.
When the vehicle-mounted battery needs low-voltage charging, the three-level adjustment superposed circuit is disconnected, and then low-voltage mode charging can be provided for the vehicle-mounted battery needing low-voltage charging; when the vehicle-mounted battery needs high-voltage charging, the secondary and tertiary adjustment superposed circuits are simultaneously connected, and high-voltage mode charging can be provided for the vehicle-mounted battery needing high-voltage charging.
According to the stacked charging pile, the fixed voltage is improved, the requirement on inversion voltage is reduced, the power consumption is low, and the requirement on an inverter is lower through the stacked rectifying module; the rectifier module adopts a rectifier diode, so that the cost is low, the supply is stable, and the cost of the whole charging pile can be reduced; and a primary fixed voltage is superposed, so that the reliability is higher. The problem of electric automobile fill electric pile series connection a plurality of inverters under the prior art, lead to filling electric pile's output too big, with high costs, the security is low is solved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a stake of stack formula charging, its characterized in that includes:
a transformer of the charging pile is respectively connected with the high-voltage rectifying module and the low-voltage rectifying module which are connected in parallel; the high-voltage rectification module and the low-voltage rectification module are respectively connected with the inversion module in parallel; the inversion module is connected with a battery control module BMS;
when the transformer is only connected to the high-voltage rectifying module, the transformer, the high-voltage rectifying module and the inverter are connected to form a secondary adjustment superposed circuit, and the secondary adjustment superposed circuit performs low-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS;
when the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, the transformer, the high-voltage rectifying module, the low-voltage rectifying module and the inverter are connected to form a three-level adjustment superposition circuit, and the three-level adjustment superposition circuit is used for carrying out high-voltage charging on a vehicle-mounted battery of the electric automobile through the battery control module BMS.
2. The charging pile of claim 1, wherein after the transformer is connected to the high-voltage rectifier module only, the transformer, the high-voltage rectifier module and the inverter are connected to form a secondary regulation stacked circuit, comprising:
when the transformer is only connected to the high-voltage rectifying module, the input voltage is the initial voltage V0 of the transformer, and after the high-voltage rectifying module is connected in parallel with the inverting module, the voltage output by the inverting module is V1;
the output voltage of the two-stage regulation superposition circuit is V0+ V1.
3. The stacked charging pile according to claim 2, further comprising: the output power P of the two-stage regulation and superposition circuit is I (V0+ V1), where I is the output current of the inverter module.
4. The charging pile according to claim 1 or 2, wherein the secondary regulation and superposition circuit performs low-voltage charging for the vehicle-mounted battery of the electric vehicle through the battery control module BMS, and comprises:
the initial voltage V0 is specifically a controllable voltage of 0-60V, the voltage output by the inverter module is specifically V1 which is direct current 480V, and the output voltage range of the two-stage adjustment superposition circuit is specifically 480V-540V;
the secondary regulation superposed circuit provides 480V-540V low-voltage charging for a vehicle-mounted battery of the electric automobile through the battery control module BMS.
5. The charging pile of claim 1, wherein when the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, a three-level adjustment circuit is formed by connecting the transformer, the high-voltage rectifying module, the low-voltage rectifying module and the inverter, and comprises:
when the transformer is connected to the high-voltage rectifying module and the low-voltage rectifying module at the same time, the input voltage of the high-voltage rectifying module is the initial voltage V0 of the transformer, and the input voltage of the low-voltage rectifying module is V2;
when the high-voltage rectifying module and the low-voltage rectifying module are respectively connected with the inverter in parallel, the voltage output by the inverter module is V1;
the output voltage of the three-level adjustment and superposition type circuit is V0+ V1+ V2.
6. The stacked charging pile according to claim 5, further comprising: the output power P of the three-level regulation and superposition circuit is I (V0+ V1+ V2), where I is the output current of the inverter module.
7. The charging pile according to claim 1 or 5, wherein the three-level regulation and superposition circuit is used for charging a vehicle-mounted battery of an electric vehicle at a high voltage through the battery control module BMS, and comprises:
the initial voltage V0 is specifically a controllable voltage of 0-60V, the voltage output by the inverter module is specifically V1 which is direct current 480V, and the input voltage V2 of the low-voltage rectifier module is specifically 60V;
the three-level adjustment superposition type circuit provides 640V-700V high-voltage charging for a vehicle-mounted battery of the electric automobile through the battery control module BMS.
8. The stacked charging pile according to claim 1, wherein the high-voltage rectifying module and the low-voltage rectifying module are rectifier diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210209358.XA CN114553030A (en) | 2022-03-04 | 2022-03-04 | Stack formula fills electric pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210209358.XA CN114553030A (en) | 2022-03-04 | 2022-03-04 | Stack formula fills electric pile |
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| Publication Number | Publication Date |
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| CN114553030A true CN114553030A (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210209358.XA Pending CN114553030A (en) | 2022-03-04 | 2022-03-04 | Stack formula fills electric pile |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141019A (en) * | 2015-09-25 | 2015-12-09 | 西安特锐德智能充电科技有限公司 | Electric vehicle charging system |
| CN105743372A (en) * | 2016-04-21 | 2016-07-06 | 张心益 | Power conversion device of input power supply during superposed DC charging |
| CN106560971A (en) * | 2016-04-22 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging circuit, wireless charging device, wireless charging method, and wireless charging system |
| CN206341147U (en) * | 2016-11-30 | 2017-07-18 | 深圳市凌康技术股份有限公司 | The DC/DC translation circuits and charging pile of a kind of Width funtion output area |
| CN206341145U (en) * | 2016-11-07 | 2017-07-18 | 江南大学 | A kind of dual transformer series parallel structure LLC resonant converter applied to electric automobile battery charger |
| CN113580963A (en) * | 2021-09-10 | 2021-11-02 | 重庆中车时代电气技术有限公司 | Electric automobile charging system |
| CN113839565A (en) * | 2021-11-26 | 2021-12-24 | 深圳市永联科技股份有限公司 | Wide output voltage control method, wide output voltage control circuit and charging pile |
-
2022
- 2022-03-04 CN CN202210209358.XA patent/CN114553030A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141019A (en) * | 2015-09-25 | 2015-12-09 | 西安特锐德智能充电科技有限公司 | Electric vehicle charging system |
| CN105743372A (en) * | 2016-04-21 | 2016-07-06 | 张心益 | Power conversion device of input power supply during superposed DC charging |
| CN106560971A (en) * | 2016-04-22 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging circuit, wireless charging device, wireless charging method, and wireless charging system |
| CN206341145U (en) * | 2016-11-07 | 2017-07-18 | 江南大学 | A kind of dual transformer series parallel structure LLC resonant converter applied to electric automobile battery charger |
| CN206341147U (en) * | 2016-11-30 | 2017-07-18 | 深圳市凌康技术股份有限公司 | The DC/DC translation circuits and charging pile of a kind of Width funtion output area |
| CN113580963A (en) * | 2021-09-10 | 2021-11-02 | 重庆中车时代电气技术有限公司 | Electric automobile charging system |
| CN113839565A (en) * | 2021-11-26 | 2021-12-24 | 深圳市永联科技股份有限公司 | Wide output voltage control method, wide output voltage control circuit and charging pile |
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Application publication date: 20220527 |
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