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Charging detection circuit

A charging detection and charging circuit technology, which is applied in the direction of battery disconnection circuit, battery circuit device, circuit device, etc., can solve the problems of no prompt, imperfect charging protection, and the user cannot know the charging status of the battery according to the

Pending Publication Date: 2020-05-15
金鑫宇电源(深圳)有限责任公司
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AI Technical Summary

Problems solved by technology

[0002] With the continuous development and progress of human society, several commonly used batteries such as nickel metal hydride batteries and lithium batteries have an increasing influence on people's lives. The selection and application of the charger are important links that affect its performance, while the traditional battery charger circuit design is relatively simple, using a constant current and constant voltage circuit, or directly charging the battery with a constant voltage, the charging protection is not perfect, and There is no prompt when using the fee, so that the user cannot know the charging status of the battery

Method used

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] The embodiment of the present invention proposes a charging detection circuit, which is used in conjunction with the battery 30 and the charging circuit 10 of the battery. The connection relationship between the charging detection circuit, the battery and the charging circuit of the battery can be as follows figure 1 As shown: the battery is connected to the charging circuit and the charging detection circuit of the battery respectively. Among t...

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Abstract

The embodiment of the invention discloses a charging detection circuit. The circuit can be used in cooperation with a battery and a charging circuit of the battery. The charging control circuit comprises: a switch control unit, a voltage detection unit, a control unit and a display unit, the input end of the voltage detection unit is connected with the battery; the output end of the voltage detection unit is connected with the control unit, the input end of the display unit and the control end of the switch detection unit are both connected with the control unit, one end of the switch detection unit is connected with the connecting end, and the other end of the switch detection unit is grounded. The voltage detection unit is used for sampling the voltage of the battery and outputting thevoltage to the control unit, and the control unit is used for controlling the display unit to display according to the voltage of the battery and / or controlling the switch control unit to be switchedon or switched off.

Description

technical field [0001] The invention relates to the field of electronic power, in particular to a charging detection circuit. Background technique [0002] With the continuous development and progress of human society, several commonly used batteries such as nickel metal hydride batteries and lithium batteries have an increasing influence on people's lives. The selection and application of the charger are important links that affect its performance, while the traditional battery charger circuit design is relatively simple, using a constant current and constant voltage circuit, or directly charging the battery with a constant voltage, the charging protection is not perfect, and There is no prompt when using the fee, so that the user cannot know the charging status of the battery. Contents of the invention [0003] An embodiment of the present invention provides a charging detection circuit to detect the charging state of the battery and provide protection for the charging ...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02H7/18
CPCH02H7/18H02J7/0031H02J7/0034H02J7/0036H02J7/0047
Inventor 胡五仔
Owner 金鑫宇电源(深圳)有限责任公司
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