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Switch power

A switching power supply, power supply technology, applied in electrical components, regulating electrical variables, instruments, etc., can solve problems such as low conversion efficiency and poor stability

Active Publication Date: 2012-12-26
SHENZHEN V&T TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a switching power supply, which aims to solve the problems of low conversion efficiency, serious heat generation and poor stability in current switching power supplies

Method used

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Embodiment Construction

[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0011] figure 1 The circuit structure of the switching power supply provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows.

[0012] Switching power supplies include:

[0013] Resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R13, resistor R14, electrolytic capacitor C1, capacitor C2, capacitor C3, electrolytic Capacitor C4, capacitor C5, filter ...

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Abstract

The invention is applicable for the field of power supply and especially relates to a switch power. In the switch power, the switch power provides a feedback signal to a control chip by using a way of direct feedback. The switch power has the advantages of low heat value, high conversion efficiency and high stability.

Description

technical field [0001] The invention belongs to the field of power supplies, in particular to a switching power supply. Background technique [0002] Switching power supply is a kind of power supply that uses modern power electronic technology to control the time ratio of switching on and off to maintain a stable output voltage. [0003] Now, the switching power supply is used to provide the drive power for the inverter. However, the current switching power supply has the problems of low conversion efficiency, serious heat generation, and poor stability, which will greatly affect the working performance of the inverter. Contents of the invention [0004] The purpose of the present invention is to provide a switching power supply, aiming at solving the problems of low conversion efficiency, serious heat generation and poor stability in the current switching power supply. [0005] The present invention is achieved in this way, a switching power supply, the switching power s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
Inventor 徐学海谢玲玉汪强马利
Owner SHENZHEN V&T TECH