Unlock instant, AI-driven research and patent intelligence for your innovation.

Power supply short circuit protection circuit

A technology for protecting circuits and power supply short circuits, which is applied to emergency protection circuit devices, circuit devices, and protection against overcurrent, etc. It can solve problems such as high cost, potential safety hazards, and circuit failures, and achieve low-cost effects

Inactive Publication Date: 2015-06-03
SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, components such as fuses and diodes are easily damaged and need to be replaced frequently
Therefore, the cost is relatively high, and it is easy to cause circuit failure, which has potential safety hazards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power supply short circuit protection circuit
  • Power supply short circuit protection circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0023] refer to figure 1 , The power supply short-circuit protection circuit of this embodiment includes a power supply 11 , a detection circuit 12 and a switch circuit 13 .

[0024] Wherein, the power supply 11 is used to provide a working voltage signal to the load 10, for example, the power supply 11 can provide a working voltage signal of 5V, and the load capacity can be 100mA, but it is not limited thereto.

[0025] The detection circuit 12 is connected to the power source 11 , the switch circuit 13 and the load 10 for detecting whether the load 10 is short-circuited.

[0026] The switch circuit 13 is connected to the detection circuit 12 , and the working voltage signal generated by the power supply 11 is transmitted to the load 10 through the switch circuit 13 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a power supply short circuit protection circuit, which comprises a power supply, a detection circuit, and a switching circuit, wherein the power supply is used for providing working voltage signals; the detection circuit is connected with the power supply and a load for detecting whether short circuit happens to the load; the working voltage signals outputted by the power supply are transmitted to the load via the switching circuit, supply of the working voltage signals for the load is cut off under control of the detection circuit when the load is short-circuited, and supply of the working voltage signals for the load is automatically recovered when the short circuit state of the load is eliminated. Short circuit protection in the condition without a diode, a fuse and the like can be realized, and the cost is low.

Description

technical field [0001] The invention relates to a power supply short-circuit protection circuit. Background technique [0002] In the prior art, the power supply short-circuit protection circuit is mostly implemented by fuses and / or diodes. However, components such as fuses and diodes are easily damaged and need to be replaced frequently. Therefore, the cost is relatively high, and it is easy to cause circuit failure, which has potential safety hazards. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a short-circuit protection circuit for a power supply, which can realize short-circuit protection without using components such as diodes and fuses, and has low cost. [0004] In order to solve the above-mentioned technical problems, the present invention provides a power short-circuit protection circuit, comprising: [0005] A power supply for providing a working voltage signal; [0006] A detection circuit, con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02H3/08H02H3/06
Inventor 孙玉乙谢小毛
Owner SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD