Power-supplying circuit

A technology of power supply circuit and inductance coil, which is applied in the direction of battery circuit device, circuit device, high-efficiency power electronic conversion, etc., can solve the problem of static power consumption of power supply circuit, and achieve the effect of saving electric energy and eliminating static power consumption

Inactive Publication Date: 2013-05-08
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

[0003] In order to solve the problem of static power consumption of the power supply circuit of electronic equipment in the prior art, it is necessary to provide a power supply circuit that can eliminate static power consumption

Method used

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Examples

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] see figure 1 , which is a schematic structural diagram of an embodiment of the power supply circuit of the present invention. The power supply circuit 10 is connected between the power input terminal 12 and the load 30 , and the power supply circuit 10 includes a switch unit 110 , an energy conversion unit 130 , a detection unit 150 and a control unit 170 . The switch unit 110 is connected between the power input terminal 12 and the energy conversion unit 130 , and the switch unit 110 controls whether the external power input from the power input terminal 12 is transmitted to the energy conversion unit 130 . The energy conversion unit 130 includes an output terminal 132 . The energy conversion unit 130 converts the external power voltage input from the power input terminal 12 into a working voltage required by the load 30 and outputs it to the load 30 through...

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Abstract

The invention provides a power-supplying circuit which comprises a switch unit, an energy conversion unit, a detection unit, a control unit and an output end. The switch unit is connected between an external power supply and the energy conversion unit, the energy conversion unit converts the external power supply into an input a load needs and outputs the input through an output end, the detection unit is connected between the energy conversion unit and the output end in series, and the detection unit detects the output current of the output end. The control unit is connected between the detection unit and the switch unit. When the detection unit detects that no current is outputted from the output end or current is very small, the control unit enables the switch unit to be cut off according to the detection signals provided by the detection unit.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to a power supply circuit capable of eliminating static power consumption. Background technique [0002] With the development of science and technology, electronic equipment has been used in all aspects of people's work, study and life. When the power supply circuit of various electronic equipment stops working but the plug is not pulled out, due to the electrical characteristics of the components of the power supply circuit itself, it still consumes a part of electric energy, that is, the power supply circuit of electronic equipment has static power consumption. Although the static power consumption of the power supply circuit is generally small, due to the large number of electronic devices nowadays, the static power consumption is undoubtedly a huge waste. Contents of the invention [0003] In order to solve the problem of static power consumption of the power supply circuit of electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/36
CPCY02B70/16H02M1/36H02J7/00H02J7/02H02M2001/0032Y02B70/10H02M1/0032H02J5/00
Inventor 李振森沈建设
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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