Anti-interference circuit and power adapter

A circuit and absorption circuit technology, applied in the electronic field, can solve problems such as unstable current output, and achieve the effect of ensuring stable output and reducing mutual influence

Pending Publication Date: 2021-12-07
深圳市明鑫电源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides an anti-interference circuit, which is used to solve the problem in the prior art that

Method used

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  • Anti-interference circuit and power adapter
  • Anti-interference circuit and power adapter
  • Anti-interference circuit and power adapter

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[0029] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are...

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Abstract

The invention relates to the technical field of electronics, in particular to an anti-interference circuit and a power adapter. The circuit comprises a current input end which is used for inputting current after being electrically connected with an external power supply; a rectification module electrically connected with the current input end; a filtering module electrically connected with the rectification module; an anti-interference control module electrically connected with the rectification module and used for carrying out voltage stabilization regulation on the input current; a sampling module electrically connected with the filtering module and the anti-interference control module; and a current output end electrically connected with the filtering module. The current intensity in the filtering module is fed back to the anti-interference control module through the sampling module, and the anti-interference control module further regulates and controls the current transmitted by the rectifying module, so that the mutual influence among all parts of the anti-interference circuit is reduced, and the stable output of the current of the anti-interference circuit is effectively ensured.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an anti-interference circuit and a power adapter. Background technique [0002] The power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. Its working principle is to convert AC input into DC output. It is widely used in security cameras, set-top boxes, routers, light bars and other equipment. The traditional power adapter interferes with each other due to the magnetic effect between the circuits when the current is output, which leads to the instability of the current output. Contents of the invention [0003] The invention provides an anti-interference circuit, which is used to solve the problem in the prior art that current output is unstable due to mutual interference between adapter circuits due to mutual magnetic effects. [0004] In order to solve the above problems, in the first aspect, the present inventi...

Claims

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Application Information

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IPC IPC(8): H02M1/44H02M7/217
CPCH02M1/44H02M7/217
Inventor 曾书明曾金芝
Owner 深圳市明鑫电源技术有限公司
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