Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-recovery fault protection circuit and intelligent power module

A fault protection and self-recovery technology, applied in the electronic field, can solve problems such as narrow pulses of working signals, achieve the effect of improving accuracy and avoiding invalid actions

Pending Publication Date: 2021-11-02
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors of the present application have discovered in the long-term research and development process that when the current fault protection circuit is recovering from a fault, when the signal at the fault protection terminal switches from a low-level signal to a high-level signal, a narrow pulse will appear in the working signal of the system. resulting in ineffective action of the system

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
  • Self-recovery fault protection circuit and intelligent power module
  • Self-recovery fault protection circuit and intelligent power module
  • Self-recovery fault protection circuit and intelligent power module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present application, but not to limit the scope of the present application. Likewise, the following embodiments are only some of the embodiments of the present application but not all of them, and all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0026] In the description of the embodiments of this application, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of or...

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 discloses a self-recovery fault protection circuit and an intelligent power module. The self-recovery fault protection circuit comprises a logic operation circuit which receives a fault detection signal and a working signal of a system and is used for carrying out operation on the fault detection signal and the working signal; a first delay circuit which receives the working signal and is used for carrying out delay processing on the working signal; and a trigger circuit, wherein the first input end of the trigger circuit is connected with the output end of the first delay circuit, the second input end of the trigger circuit is connected with the output end of the logic operation circuit, and the trigger circuit controls the operated working signal to perform logic flipping based on the working signal after delay processing. Through the mode, the narrow pulse of the working signal during system fault self-recovery can be eliminated, so that the accuracy of system control is improved.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a self-restoring fault protection circuit and an intelligent power module. Background technique [0002] In circuits such as gate drive circuits, the control circuit needs to be provided with a fault protection terminal. When a system failure is detected, such as overcurrent, overtemperature or undervoltage, the fault protection terminal can change its input state to shut down the system and stop running, which can protect the system from damage. [0003] The inventors of the present application have discovered in the long-term research and development process that when the current fault protection circuit is recovering from a fault, when the signal at the fault protection terminal switches from a low-level signal to a high-level signal, a narrow pulse will appear in the working signal of the system. This will lead to invalid operation of the system. Contents of ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/06
CPCH02H3/066
Inventor 刘利书
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com