Adapter, notebook computer and energy saving method for adapter

A technology of adapters and alternating currents, applied in circuits, electrical components, coupling devices, etc., to achieve cost saving, zero power consumption, and simple implementation

Active Publication Date: 2010-06-16
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the existing adapter power-saving schemes are to judge the load condition and decide whether to output power. The disadvantage of these schemes is: the judgment circuit will have a certain power consumption in any case in the standby state

Method used

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  • Adapter, notebook computer and energy saving method for adapter
  • Adapter, notebook computer and energy saving method for adapter
  • Adapter, notebook computer and energy saving method for adapter

Examples

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Embodiment Construction

[0080] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0081] An embodiment of the present invention provides an adapter, including: an input end, used to connect to an external AC power; an AC / DC conversion module, used to convert the AC power into a DC power; an output end, used to output the DC power; the adapter also It includes: an AC switch connected to the AC line between the conversion module and the input terminal, wherein the AC switch is used to disconnect the DC power interface of the electrical equipment when the output terminal is pulled out. The AC connection between the conversion module and the input terminal; when the output terminal is inserted into the DC interface of the electric device, the AC connection between the conversion module and the input terminal is connected.

[0082] The ...

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PUM

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Abstract

The embodiment of the invention provides an adapter, a notebook computer and an energy saving method for the adapter. The adapter comprises an input end, an AC / DC conversion module, an output end and an AC switch, wherein the input end is connected to the external AC; the AC / DC conversion module is used for converting the AC into DC; the output end is used for outputting the DC; the AC switch is connected to an AC line between the conversion module and the input end; and the AC switch is used for disconnecting the AC between the conversion module and the input end when the output end is pulled out of the DC interface of the electrical equipment, and connecting the AC between the conversion module and the input end when the output end is inserted in the DC interface of the electrical equipment. The embodiment of the invention can enable the adapter to realize zero power consumption in the standby state, thereby solving the technical problem that the adapter in the prior art consumes power when being not connected to a load (in the standby state).

Description

technical field [0001] The invention relates to a power adapter, in particular to a power adapter capable of saving electricity and a power saving method for the adapter. Background technique [0002] Ordinary notebook computers have power adapters for converting ordinary 220V alternating current into low-voltage direct current used by notebook computers. [0003] In the office, when most people turn off the notebook computer, they often only pull out the plug of the adapter from the notebook, and are too lazy to pull out the 220V adapter. However, when one end of the adapter is connected to 220V and the other end is not connected to the load, there is more or less a certain amount of standby power consumption, ranging from about 100mW to about 400mW. [0004] In this way, even if the adapter is not working, it still has a standby power consumption of 100-400Mw because it is connected to 220V AC. Although the standby power consumption of a single adapter is not much, as mo...

Claims

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Application Information

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IPC IPC(8): H01R13/66H01R13/71H01R13/703
Inventor 张旭辉
Owner LENOVO (BEIJING) CO LTD
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