Reverse-connection preventing circuit, reverse-connection preventing processing method and communication equipment

An anti-reverse connection circuit and circuit technology, applied in the field of communication, can solve problems such as MOS tube breakdown, achieve the effect of improving reliability and expanding the application voltage range

Inactive Publication Date: 2010-10-27
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
View PDF5 Cites 48 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an anti-reverse connection circuit, anti-reverse connection processing method and communication equipment, which are used to solve the problem of MOS tube breakdown caused by input voltage overvoltage in the a

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
  • Reverse-connection preventing circuit, reverse-connection preventing processing method and communication equipment
  • Reverse-connection preventing circuit, reverse-connection preventing processing method and communication equipment
  • Reverse-connection preventing circuit, reverse-connection preventing processing method and communication equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] image 3 It is a structural schematic diagram of Embodiment 1 of the anti-reverse connection circuit of the present invention, such as image 3 As shown, this embodiment provides an anti-reverse connection circuit. The anti-reverse connection circuit may include a bidirectional voltage clamp circuit 1, a voltage bias resistor 6 and at leas...

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 reverse-connection preventing circuit, a reverse-connection preventing processing method and communication equipment. The circuit comprises a voltage bias resistor connected between the anode and the cathode of the power supply, a bidirectional voltage-lamping circuit and at least one field-effect tube, wherein the voltage bias resistor is connected with the grid electrode of the field-effect tube and is used for conducting and biasing the field-effect tube; the bidirectional voltage-lamping circuit is connected in parallel at two ends of the grid electrode and the source electrode of the field-effect tube and is used for taking a grid electrode and source electrode voltage clamp of the field-effect tube as a first protective voltage when inputting overvoltage in the forward direction; and the first protective voltage is the normal work voltage of the field-effect tube. The invention also provides the reverse-connection preventing processing method and the communication equipment. The invention achieves the input overvoltage protection function of the direct current input reverse-connection preventing circuit and improves the reliability of the circuit.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an anti-reverse connection circuit, a processing method for anti-reverse connection and communication equipment. Background technique [0002] In the electronic system using an external DC power supply in the field of communication, the polarity of the external DC power supply is misconnected or reversed, often causing irreversible damage to the equipment, and even burning related equipment. Therefore, the power supply of communication equipment powered by DC power supply The input usually needs to be designed as an anti-reverse connection circuit. [0003] Such as figure 1 Shown is a connection schematic diagram of an anti-reverse connection circuit in the prior art. The anti-reverse connection circuit in the prior art is usually connected in series with a diode D1 on the power supply circuit, and is realized by utilizing the unidirectional conduction and reverse cut-off ...

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): H02H11/00
Inventor 任谦
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap