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Power adapter

A power adapter and power supply technology, which is applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve problems such as power consumption, low safety, and potential safety hazards, and achieve the effects of prolonging service life, improving safety performance, and avoiding waste

Inactive Publication Date: 2009-01-28
中山市中茗电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the charger and battery are disconnected from the inside of the computer, and the charger is still charged, it needs to consume a certain amount of power, causing unnecessary waste, and there are certain safety hazards, and the reliability of use is not high. In addition, relying on the laptop itself It is not safe to use special equipment or programs to detect whether the battery is fully charged, which will affect the service life of the notebook and increase the cost of use.

Method used

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Embodiment Construction

[0017] Referring to Figure 1 and Figure 3, a power adapter includes:

[0018] A power input interface 1, the power input interface 1 can be a plug, etc., for connecting to an AC power supply;

[0019] A power output interface 2, electrically connected to the power input interface 1, the power output interface 2 can be a socket, etc., used to connect the load, that is, connect the input end of the charger, and supply power to the charger;

[0020] A switch unit 3, connected in series to the connection line between the power input interface 1 and the power output interface 2, to turn on or off the line;

[0021] A controller 4, which is connected with the switch unit 3, controls the switching on or off of the switch unit 3; the controller in this embodiment is a single-chip microcomputer, and of course other circuits with similar functions can also be used.

[0022] A signal acquisition unit 5, which collects signals from the circuit and sends the signals to the controller 3 fo...

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PUM

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Abstract

The invention discloses a power adapter which comprises an input interface of a power supply, an output interface of the power supply, a switch unit, a controller, and a signal acquisition unit, wherein the signal acquisition unit automatically detects charging information such as current, voltage or frequency and so on; and the switch unit cuts off a power supply of the input interface of the power supply and the output interface of the power supply when the charging is finished, so that the power supply of a computer charger is cut off from source, which avoids the self power consumption of the charger from causing waste, plays a role in protecting a computer and the charger, improves the safety performance of an electric appliance, prolongs the service life of a notebook computer, and has strong practicability.

Description

technical field [0001] The invention relates to a switching power supply, in particular to a power adapter connected between a notebook computer charger and a power supply. Background technique [0002] Notebook computers are widely used as a portable device, and notebook computers are equipped with rechargeable batteries and equipped with a matching charger. When charging, it depends on the equipment or program of the notebook computer itself to detect whether the battery is full. If When the battery is fully charged, the computer will automatically disconnect the charger and the battery to prevent the battery from overcharging. Since the charger and battery are disconnected from the inside of the computer, and the charger is still charged, it needs to consume a certain amount of power, causing unnecessary waste, and there are certain safety hazards, and the reliability of use is not high. In addition, relying on the laptop itself It is not safe to use special equipment or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/04H02M7/217
Inventor 钟继叶
Owner 中山市中茗电器有限公司