Charging management circuit and power supply adapting device

A technology of charging management circuit and power adapter, which is applied to battery circuit devices, circuit devices, current collectors, etc., can solve the problem that the charging voltage cannot be matched with saturation voltage.

Active Publication Date: 2010-08-18
SHENZHEN CERTAINN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a charging management circuit, aiming to solve the pr

Method used

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  • Charging management circuit and power supply adapting device
  • Charging management circuit and power supply adapting device
  • Charging management circuit and power supply adapting device

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] figure 1 The structure of the charging management circuit provided by the embodiment of the present invention is shown.

[0016] The charging management circuit includes a step-up / down unit 100 , a voltage detection unit 200 and a control unit 300 .

[0017] The input end of the step-up / down unit 100 is connected to the output end of the power adapter, and the output end is connected to the rechargeable battery;

[0018] The input terminal of the voltage detection unit 200 is connected to the rechargeable battery to detect the charging voltage;

[0019] The input terminal of the control u...

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Abstract

The invention is applicable to the battery power supply equipment technical filed and provides a charging management circuit and a power supply adapting device; wherein the charging management circuit comprises a boosting/reducing unit, a voltage detection unit and a control unit. In the invention, the charging management circuit regulates the charging voltage output by the power supply adapter to be voltage matched with saturation voltage of rechargeable battery, thus the charging voltage output by the power supply adapter is effectively expanded, and the power supply adaptor can cause the battery to be full of power even the charging voltage output by the power supply adapter is less than the saturation voltage of rechargeable battery.

Description

technical field [0001] The invention belongs to the technical field of battery-powered equipment, and in particular relates to a charging management circuit and a power adapter device. Background technique [0002] The power adapter is a power supply conversion device for portable electronic devices. It is generally composed of a casing, a power transformer and a rectifier circuit. It can be divided into AC output type and DC output type according to its output type; it can be divided into wall-plug type and desktop type according to the connection mode. . [0003] In daily life, when people charge the rechargeable battery of the portable electronic device, a power adapter is usually connected between the power source and the rechargeable battery, and the power adapter converts the power supply voltage and outputs the charging voltage to the rechargeable battery. [0004] Usually, the charging voltage output by the power adapter to the rechargeable battery is generally a fi...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor 龚小明郭华龙孔令涛
Owner SHENZHEN CERTAINN TECH CO LTD
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