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Low-power consumption standby circuit and standby control method

A technology of a standby circuit and a control method, which is applied in the field of standby technology, can solve problems such as large power consumption, achieve the effects of reducing system power consumption, meeting the needs of energy saving and consumption reduction, and breaking through design limitations

Inactive Publication Date: 2009-03-18
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the electrical appliance is a main computer box or a TV, the value will be larger, and the power consumption will be large, so this technology needs to be improved

Method used

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  • Low-power consumption standby circuit and standby control method
  • Low-power consumption standby circuit and standby control method
  • Low-power consumption standby circuit and standby control method

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Embodiment Construction

[0019] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0020] combine figure 2 , the composition based on the low-power standby technology of the present invention includes a primary power supply and a secondary power supply, the primary power supply is interconnected with the standby circuit of the electrical equipment, and the secondary power supply is also connected with the power part of the electrical equipment in addition to being interconnected with the standby circuit of the electrical equipment.

[0021] The present invention is an innovative invention related to a standby (soft shutdown) technology for electronic equipment, and its control sequence is as follows:

[0022] (1) The power supply system adopts the secondary power supply mode;

[0023] (2) The standby circuit is powered by a primary power supply during standby (soft shutdown);

[0024] (3) When the system resumes from the standby state, enable...

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PUM

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Abstract

The invention provides a low-power consumption stand-by circuit and a stand-by control method, wherein the low-power consumption stand-by circuit comprises a primary power supply and a secondary power supply, wherein the primary power supply is mutually connected with a stand-by circuit of an electric appliance, and the secondary power supply is further connected with the power part of the electric appliance except mutually connecting with the stand-by circuit of the electric appliance. The invention adopts the primary power supply to supply electricity for the stand-by circuit, the secondary power supply restores to work when signals are detected (such as a power supply key is pressed, signal input is detected and the like), and systems normally work. The low-power consumption stand-by circuit can lower system power consumption, and satisfies the requirements of saving energy and lowering consumption.

Description

(1) Technical field [0001] The invention relates to a standby technology for electronic equipment, in particular to a standby technology that satisfies the standby requirements of electronic equipment in production and life with relatively low power consumption. (2) Background technology [0002] Generally, the standby power supply of commonly used electronic equipment adopts a 5VDC branch from the main power supply (commonly used as a switching power supply connected to 220VAC) to supply power to the system control chip. The basic circuit structure is as follows: figure 1 shown. When the system is in the standby state (including dormancy and soft shutdown), the main energy-consuming part of the device stops working, but each control chip is still in the working (or low-power working) state, and there is a certain power demand. At this time, 5VDC is still provided to the system Basic working power. [0003] It is measured that the current of a certain type of 17-inch LCD m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/00G05B19/04
CPCY02B70/30Y04S20/20
Inventor 田野田园
Owner HARBIN ENG UNIV
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