An intelligent detection and protection circuit for termination of service life of ground fault breaker

An end-of-life, intelligent detection technology, applied in the direction of emergency protection circuit devices, automatic disconnection emergency protection devices, circuit devices, etc. Effect

Inactive Publication Date: 2007-05-16
陈景正
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Leakage fault circuit breaker products are a kind of electronic devices that are commonly used now. Due to reasons such as the use environment, power conditions, improper installation, and long-term use of component

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
  • An intelligent detection and protection circuit for termination of service life of ground fault breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] As shown in the figure, the present invention includes an electric leakage detection circuit and a tripping mechanism, and consists of an associated regulated power supply circuit (201), an alternating current synchronous signal sampling circuit (202), an analog protection actuator (203), and an execution result detection circuit ( 204), executive switch open circuit (205), leakage signal analog circuit (206), single-chip microcomputer MCU, and the monitoring alarm circuit (208) of monitoring leakage detection result form the intelligent detection and protection circuit (200) to leakage detection circuit and trip action part ), wherein the AC synchronous signal sampling circuit (202) is composed of resistors R202, R203, and diode D202 connected together, and the AC power grid synchronous monitoring unit composed of single-chip MCU signals lifts the synchronous half-wave signal from the grid to the single-chip microcomputer as a real-time detection The sampling signal of ...

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 related intelligent detection protective circuit for lifetime termination of grounding fault breaker adds an abnormal monitor circuit for the leakage protector fault based on general leakage protector. This invention employs LED to display abnormal condition, and reduces accident for people protection.

Description

Technical field [0001] The invention relates to an intelligent detection and protection circuit for the end of life of a ground fault circuit breaker. Background technique [0002] The basic principle of the ground short-circuit leakage protection device of the low-voltage electrical appliance ground fault circuit interrupter GFCI is: on an AC active line, the loop current of the live line and the neutral line should be equal under the condition of normal power consumption. Once a ground short-circuit leakage accident occurs, the live wire current and the neutral wire current in the loop will be unbalanced. The induction coil in the GFCI leakage protection monitors the current difference and converts it into a voltage signal, which is amplified by the leakage detection circuit IC Then make a judgment and output it to the control part. Once the difference is greater than the set threshold, the control IC will output a corresponding control signal to make the GFCI circuit brea...

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): H02H3/32H02H3/04
Inventor 陈景正
Owner 陈景正
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