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Control circuit used for constant-voltage current-limiting charging

A control circuit, constant voltage and current limiting technology, applied in the direction of battery circuit devices, circuit devices, collectors, etc., can solve problems such as limited capacity of battery chargers, and achieve the effect of reducing output current ripple

Pending Publication Date: 2017-05-10
上海施能电器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The capacity of existing battery chargers is limited, and the driving range of electric vehicles used in the market is generally 100km to 300km after a single charge, and then needs to be replaced with a new fully charged battery for replenishment

Method used

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  • Control circuit used for constant-voltage current-limiting charging
  • Control circuit used for constant-voltage current-limiting charging
  • Control circuit used for constant-voltage current-limiting charging

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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0019] A control circuit for constant voltage and current limiting charging, including a switch circuit A and a rectification and filtering circuit. The switching circuit A is connected to the rectification and filtering circuit through a main transformer T1. The control circuit for constant voltage and current limiting charging also includes a The charging control circuit is a charging control circuit that adjusts the conduction pulse width or switching frequency of the switching circuit by collecting the current and voltage on the rectification and filtering circuit. The switching circuit A is a conversion circuit of various switching tubes.

[0020] Switching circuit A and rectification and filtering circuit implementation 1, refer to figure ...

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PUM

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Abstract

The invention discloses a control circuit used for constant-voltage current-limiting charging. The control circuit used for constant-voltage current-limiting charging comprises a switch circuit and a rectification filtration circuit; the switch circuit is connected with the rectification filtration circuit through a main transformer; and the control circuit used for constant-voltage current-limiting charging further comprises a charging control circuit for adjusting a conducting pulse width or a switch frequency of the switch circuit by acquiring a current and a voltage on the rectification filtration circuit. According to the control circuit, relatively low output current or voltage ripples can be output in a constant-current or constant-voltage state.

Description

technical field [0001] The invention relates to the technical field of control circuits, in particular to a control circuit for constant voltage and current limiting charging. Background technique [0002] With the change of human environment and the call for energy saving and emission reduction, the development of green energy has become the development theme of today's society. As one of the solutions to reduce greenhouse gas emissions and reduce dependence on crude oil imports, new energy vehicles It will become the general trend of the development of the automobile industry in various countries, especially electric vehicles have received great attention from all countries in the world. [0003] Electric vehicles are clean, low-carbon, green vehicles that mainly use power batteries as the main power source. The capacity of existing battery chargers is limited, and the driving range of electric vehicles used in the market after one charge is generally 100km to 300km, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/14H02M7/06H02J7/00
CPCH02M1/14H02M7/068H02J7/00
Inventor 夏志超
Owner 上海施能电器设备有限公司
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