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Power adapter and charging method thereof

A technology of power adapter and charging unit, which is applied in the direction of secondary battery charging/discharging, current collectors, battery circuit devices, etc., and can solve problems such as energy waste

Inactive Publication Date: 2010-02-17
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, energy is greatly wasted due to people's carelessness

Method used

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  • Power adapter and charging method thereof
  • Power adapter and charging method thereof

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Embodiment Construction

[0016] see figure 1 , is a block diagram of the power adapter 10 in a preferred embodiment. The power adapter 10 includes a charging unit 106 , a power output terminal 20 , a sensing unit 108 , a processing control unit 104 and an electronic switch unit 102 . The electronic switch unit 102 is used for connecting with the AC power of the city, and receiving and rejecting the AC power by closing and opening itself. The charging unit 106 converts the AC power into a charging voltage, and charges the rechargeable unit 21 connected to the power adapter 10 through the power output terminal 20 . The sensing unit 108 is used for sensing the voltage of the output terminal 20 of the power supply, and sending a level signal to the processing control unit 104 according to the magnitude of the voltage. The sensing unit 108 is a voltage sensor. When the voltage sensor detects that the power supply voltage of the rechargeable unit 21 connected to the power adapter 10 is less than or equal ...

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Abstract

The invention provides a power adapter comprising a charging unit and a power output terminal; the charging unit is used for receiving an external power and charging a chargeable unit via the power output terminal; the power adapter also comprises a sensing unit, a processing and controlling unit and an electrical switch unit; the electrical switch unit is used for connecting with the external power, receiving and rejecting the external power by self connection and disconnection; the sensing unit is used for sensing the voltage of the power output terminal and transmitting level disconnectionsignals to the processing and controlling unit when the voltage achieves and fulfills the threshold voltage value; the processing and controlling unit transmitting disconnection control signals to theelectrical switch unit according to the level disconnection signals; the electrical switch unit responds to the control signals from the processing and controlling unit to disconnect the electric connection with the external power so as to reject the external power. The invention further provides an energy-saving charging method.

Description

technical field [0001] The invention relates to a power adapter, in particular to an automatic control energy-saving power adapter and a charging method thereof. Background technique [0002] With the development of microelectronics technology in the 20th century, miniaturized equipment is increasing day by day, which puts forward high requirements on power supply, and portable electrical appliances such as laptop computers, cameras, and mobile communications are widely used. The energy used by these electrical equipment is basically rechargeable batteries, so the power adapter is an indispensable accessory for electronic equipment. We know that the power adapter uses power electronic semiconductor devices to convert alternating current with constant voltage and frequency into direct current. A static converter. There are many types of power adapters, such as lithium-ion battery power adapters for portable electronic devices, multi-function power adapters for lithium-ion ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/04H02J7/06H01M10/44
CPCH02J7/0086H02J7/007182
Inventor 安卫鹏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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