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Safety isolation device for power supply output

A technology of safety isolation and power output, applied in circuit devices, emergency protection circuit devices, emergency protection devices with automatic disconnection, etc., can solve problems such as inability to effectively isolate, and achieve the effect of ensuring safety and improving safety performance.

Inactive Publication Date: 2015-12-09
SUZHOU BROADLINE POWER SUPPLY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a power output safety isolation device, which solves the problem that the equipment cannot be effectively isolated during the power-on maintenance process

Method used

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  • Safety isolation device for power supply output

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Embodiment Construction

[0017] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0018] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein Explanation.

[0019] Such as figure 1 As shown, a power supply output safety isolation device includes an input port, an output port, a detection control circuit, a display control circuit, and an isolation circuit; an isolation circuit is connected between the input port and the detection control circuit, and t...

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Abstract

The invention discloses a safety isolation device for power supply output. The safety isolation device comprises an input port, an output port, a detection control circuit, a display control circuit and an isolation circuit, wherein the isolation circuit is connected between the input port and the detection control circuit, the output end of the detection control circuit is connected with the display control circuit and the output port respectively, the detection control circuit comprises a rectification circuit, a detection circuit, a control circuit and a processing circuit, the output end of the isolation circuit is connected with the input end of the rectification circuit and the input end of the control circuit, the output end of the rectification circuit is connected with the input end of the detection circuit, the processing circuit is connected with the output end of the detection circuit, a control end of the control circuit and the display control circuit respectively, the output end of the control circuit is connected with the output port, and the input port is connected with the input end of the detection control circuit. By using the photo-coupling isolation circuit for isolation, the safety performance is improved.

Description

technical field [0001] The invention relates to a safety isolating device for power supply output, which is suitable for maintenance occasions of various household electrical appliances and industrial drive equipment. Background technique [0002] The power-on maintenance of traditional equipment products is directly connected to the grid AC 220V or AC 380V. If there is a short circuit or other faults in the equipment, the input current will increase sharply, which may cause the protection equipment at the input current end to trip, or cause the equipment to explode, endangering the safety of maintenance personnel. [0003] The application number is 201310280745.3, and the invention patent with the application date of 2013.07.05 discloses a power output device, including an input port, an output port, a detection control circuit, and a display control circuit; the input port and the input end of the detection control circuit connected, the output terminals of the detection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/00H02H3/08H02H3/20H02H5/04
Inventor 王占伟李光明
Owner SUZHOU BROADLINE POWER SUPPLY TECH
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