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power supply system

A power supply, switching power supply technology, applied in data processing power supply, electrical digital data processing, climate sustainability, etc.

Active Publication Date: 2019-12-06
HONG FU JIN PRECISION IND WUHAN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the power supply design of the computer, there is no power supply circuit that can achieve a better energy-saving effect when the computer is in a standby state.

Method used

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Embodiment Construction

[0011] see figure 1 , In a preferred embodiment of the present invention, a power supply system includes a switching power supply 10 , a control circuit 20 and a switching circuit 30 . The switching power supply 10 is electrically connected to the control circuit 20 . The control circuit 20 is electrically connected to the switch circuit 30 . The switch circuit 30 is electrically connected to a main board 40 to receive a switch signal PS from the main board 40 . The control circuit 20 is used to electrically connect a load 50 .

[0012] The switch signal PS has different level values ​​when the main board 40 is in different states. Specifically, in one embodiment, when the main board 40 is in a normal working state, the switch signal PS is a low-level first signal; when the main board 40 is in a standby state, the switch signal PS The signal PS is a high-level second signal.

[0013] The switching signal PS of the main board 40 is used to control the switching on and off ...

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PUM

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Abstract

A power supply system for a motherboard includes a switching power source, a control circuit, and a switch circuit. The control circuit includes a photocoupler and a comparator. The photocoupler is electrically connected to the switching power source and the comparator. The switch circuit is electrically connected to the comparator and a motherboard. The switch circuit is turned off when the motherboard is in a normal state and turned on when the motherboard is in a standby state. The switching power source outputs a voltage through the control circuit when the switch circuit is turned off. When the switch circuit is turned on, the comparator outputs a first state signal to the photocoupler. The photocoupler thus outputs a first driving signal to the switching power source. The first driving signal causes the switching power source to reduce the voltage.

Description

technical field [0001] The invention relates to a power supply system, especially a power supply system. Background technique [0002] Existing electrical equipment (for example, computers, televisions, projectors, monitors, etc.) needs to meet certain energy-saving requirements in a standby (standby) state. Low consumption of electrical equipment in standby mode has become an important factor to be considered in the design process. At present, in the power supply design of a computer, there is no power supply circuit that can achieve a relatively good energy-saving effect when the computer is in a standby state. Contents of the invention [0003] In view of the above, it is necessary to provide a power supply system that achieves a better energy-saving effect in a standby state. [0004] A power supply system comprising a switching power supply, a control circuit and a switching circuit, the control circuit comprising a photocoupler and a comparator, the switching power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/3296
CPCG06F1/3296G06F1/26Y02D10/00
Inventor 张恭维王圣良
Owner HONG FU JIN PRECISION IND WUHAN CO LTD
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