Switching value output self-protection circuit

A switching value output and protection circuit technology, applied in the direction of instruments, computer control, simulators, etc., can solve the problems of increasing system failures, touching the system, inconvenient system maintenance, etc., and achieve the effect of convenient system maintenance

Inactive Publication Date: 2015-07-08
STATE NUCLEAR POWER AUTOMATION SYST ENGCO
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the configuration of the fuse needs to be considered comprehensively in the system. At the same time, the fuse is basically used for one time. If it is broken, it needs to be rep

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
  • Switching value output self-protection circuit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] The embodiments of the present invention will be further described in detail below in conjunction with the description of the drawings, but this embodiment is not used to limit the present invention. Any similar structure and similar changes that adopt the present invention should be included in the protection scope of the present invention.

[0010] Such as figure 1 As shown, a digital output self-protection circuit provided by an embodiment of the present invention is characterized in that: the circuit includes an output relay D1, a Hall current sensor U3, an AND gate U2, and an output for driving the output relay to open and close. Drive module U1;

[0011] The drive signal output terminal of the output drive module U1 is connected to the control terminal of the output relay D1, and the primary output terminal of the Hall current sensor U3 is connected to a static contact of the output relay D1;

[0012] One input terminal of the AND gate U2 is connected to the secondary v...

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 relates to the technical field of industrial control, in particular to a switching value output self-protection circuit. The switching value output self-protection circuit achieves the technical purpose that a system is maintained conveniently. The circuit comprises an output relay, a Hall current sensor, an and gate and an output drive module for driving the output relay to be switched on and switched off. The drive signal output end of the output drive module is connected to the control end of the output replay. The primary side output end of the Hall current sensor is connected to a static contact of the output relay. One input end of the and gate is connected to a secondary-side voltage output end of the Hall current sensor, the other input end is connected to a switching value signal source, and the output end of the and gate is connected to the source signal input end of the output drive module. The circuit is especially suitable for the switching value output module of a digital control platform based on an FPGA technology.

Description

technical field [0001] The invention relates to industrial control technology, in particular to a technology of switching value output self-protection circuit. Background technique [0002] Modern industrial industries (such as chemical control, nuclear power industry, etc.), require the entire process of control (input, controller, output) to have high reliability and availability. However, the harshness of the industrial environment causes short-circuit events of equipment and cables to occur from time to time. In order to prevent damage to related equipment after a short circuit event occurs, a fuse is generally equipped in the circuit to prevent excessive current. However, the configuration of the fuse needs to be considered comprehensively in the system. At the same time, the fuse is basically used for one time. If it is broken, it needs to be replaced. It is inevitable to touch other parts of the system during the replacement process, which increases the probability o...

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): G05B19/042
CPCG05B19/042
Inventor 查章其韩寅驰蒋磊梅燕徐沧
Owner STATE NUCLEAR POWER AUTOMATION SYST ENGCO
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