Charger indicating lamp circuit

Abstract

A charger indicating lamp circuit is used for indicating the charging state when a battery is charged. The circuit comprises an indicating lamp module, a voltage detection module, a charging chip and a switch. The indicating lamp module includes an indicating lamp and is used for indicating whether the charger is working normally; the voltage detection module outputs a first potential when detecting that a power supply is connected to a connection port and outputs a second potential when detecting that the charging power supply is not connected to the connection port; the charging chip outputs a low level when a battery meets charging conditions and outputs a high level when the battery does not meet the charging conditions; and the switch switches on a branch where the indicating lamp module is located when the charging chip outputs the low level and the voltage detection module outputs the first potential so as to turn on the indicating lamp, and switches off the branch where the indicating lamp module is located when the charging chip outputs the low level and / or the voltage detection module outputs the second potential so as to turn off the indicating lamp. On / off of the indicating lamp can be controlled without the use of software.

Description

technical field [0001] The invention relates to a circuit, in particular to a charger indicator circuit. Background technique [0002] At present, the general indicator light circuit of the charger is to control the light on or off of the indicator light of the charger through the soft control mode of the controller, so that the existing indicator light circuit of the charger is relatively complicated. Moreover, the existing charger indicator light circuit requires the controller to be in the working state all the time, and when the controller is in a power-off state, it cannot control the on or off of the charger indicator light. Contents of the invention [0003] In view of this, a charger indicator circuit is provided, which can control the on or off of the indicator light without using software. [0004] A charger indicator circuit is used to indicate the charging status when charging a battery, the charger indicator circuit includes a connection port for connecting t...

AI Technical Summary

Problems solved by technology

[0002] At present, the general charger indicator light circuit is to control the light on or off of the indicator light of the charger through the soft control mode of the controller, so that the existing charger indicator light circuit is more complicated.

Moreover, the existing charger indicator light circuit requires the controller to be in working condition all the time, and when the controller is in a power-off state, it cannot control the on or off of the charger indicator light.

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