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DC charging system of portable charger

A DC charging and charging machine technology, applied in charging stations, battery circuit devices, charging different batteries, etc., can solve the problems of large volume, high cost, and bulky, and achieve the effect of small volume, low cost, and light weight

Pending Publication Date: 2019-07-02
华盛新能源科技(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is expensive, bulky and heavy

Method used

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  • DC charging system of portable charger
  • DC charging system of portable charger
  • DC charging system of portable charger

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Embodiment Construction

[0026] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, a DC charging system for a portable charger includes a DSP main control circuit, an active PFC correction circuit, and a DCDC full-bridge phase-shifting resonant soft switch circuit. EMC input filter circuit, EMC input filter circuit is connected to single-phase rectification and soft start circuit, and then connected to active PFC correction circuit, active PFC correction circuit is connected to DCDC full-bridge phase-shifting resonant soft switch circuit, DCDC full-bridge phase-shifting resonant circuit through The main transformer is connected to the bridge rectifier circuit, followed by the output filter circuit, the output filter circuit is connected to the output control circuit through the output reverse feeding circuit, and then the DC output is converted into a DC output voltage of 200-700V for electr...

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PUM

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Abstract

The invention discloses a DC charging system of a portable charger. The system comprises a DSP main control circuit, an active PFC correction circuit and a DCDC full-bridge phase shift resonance softswitching circuit. The single-phase AC input is connected with an EMC input filter circuit through an input fuse, and passes through an EMC input filter circuit; the EMC input filter circuit is connected with a single-phase rectification and soft start circuit, and then is connected with the active PFC correction circuit; the active PFC correction circuit is connected with the DCDC full-bridge phase-shift resonance soft switching circuit, and the DCDC full-bridge phase-shift resonance circuit is connected with a bridge rectifier circuit through the main transformer and then is connected with the output filter circuit; the output filter circuit is connected with the output control circuit through an output backward flowing circuit and then performs DC output. The system facilitates the charging of an electric vehicle, particularly an electric logistics vehicle, and due to the adoption of an overall solution, the portable charger is smaller in size, lighter in weight and lower in cost.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle charging equipment, and in particular relates to a direct current charging system of a portable charger. Background technique [0002] With the rapid development of new energy electric vehicles, the sales of new energy electric vehicles have increased significantly, and the charging problem of electric vehicles has become increasingly prominent. [0003] Due to the small number of charging piles at present, the charging location is fixed, and the service fee is charged for charging. From time to time, electric vehicles cannot reach the charging pile for charging due to insufficient remaining power. Moreover, the current production of electric logistics vehicles does not have OBC itself, and must be charged by DC piles. Users purchase large-scale DC charging piles, which are expensive, take up a lot of space, and cannot be moved, which limits the charging of electric vehicles, especially ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/04H02J7/00B60L53/10B60L53/66
CPCH02J7/0047H02J7/045Y02T10/70Y02T10/7072Y02T10/72Y02T90/12Y02T90/14Y02T90/16
Inventor 金永辉赵丹君
Owner 华盛新能源科技(深圳)有限公司
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