Automatic shutoff circuit for charger

A technology of automatic disconnection and charging circuit, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as hidden safety hazards and the lack of automatic disconnection of chargers, and achieve the effect of preventing overshoot and burnout

Inactive Publication Date: 2015-06-17
XIAN GUANGRONG ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the charger does not have the function of automatic disconnection. Usually, the mobile terminal protects the battery through the overshoot protection circuit. In this way, the charger is charged for a long time, and there are potential safety hazards.

Method used

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  • Automatic shutoff circuit for charger

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Embodiment Construction

[0009] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] An embodiment of the present invention provides an automatic disconnection circuit for a charger, including a power detection circuit 1, a controller 2, a switch control circuit 3, and a charging circuit 4. The power detection circuit 1, a controller 2, a switch control circuit 3, a charging Circuit 4 is connected in sequence.

[0011] The controller 2 is connected with a display circuit.

[0012] After the mobile terminal is fully charged, the power detection circuit 1 detects that the battery is fully charged, and the switch control circuit 3 of the controller 2 sends a stop signal to control the charging circuit 4 to disconnect and stop charging.

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Abstract

The invention provides an automatic shutoff circuit for a charger. The automatic shutoff circuit comprises an electronic quantity detection circuit, a controller, a switch control circuit and a charging circuit. The electronic quantity detection circuit, the controller, the switch control circuit and the charging circuit are sequentially connected. By the adoption of the automatic shutoff circuit, the overcharging burnout situation of the charger and a mobile terminal can be prevented.

Description

technical field [0001] In particular, the invention relates to automatic disconnection circuits of chargers. Background technique [0002] At present, the charger does not have the function of automatic disconnection. Usually, the mobile terminal protects the battery through the overshoot protection circuit. In this way, the charger is charged for a long time, and there are potential safety hazards. Contents of the invention [0003] The purpose of the present invention is to provide an automatic disconnection circuit for a charger, which solves the problems existing in the prior art, and can prevent the charger from being burnt out by overshooting and the mobile terminal from being burnt out by overshooting. [0004] The technical scheme adopted in the present invention is: [0005] The invention provides an automatic disconnection circuit for a charger, which is special in that it includes a power detection circuit, a controller, a switch control circuit, and a charg...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor陈晓龙
OwnerXIAN GUANGRONG ELECTRICAL