Circuit with electrostatic protection function, high-voltage integration circuit and air conditioner

A technology for electrostatic protection and protective circuits, which is applied in the direction of emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, circuit devices, etc. Protection requirements and other issues to achieve the effect of improving electrostatic protection capabilities

Inactive Publication Date: 2018-07-20
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its protection mechanism is simple input and output diode protection. The circuit structure has limited impact resistance and c...

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
  • Circuit with electrostatic protection function, high-voltage integration circuit and air conditioner
  • Circuit with electrostatic protection function, high-voltage integration circuit and air conditioner
  • Circuit with electrostatic protection function, high-voltage integration circuit and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0037] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second" and ...

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 circuit with an electrostatic protection function, a high-voltage integration circuit and an air conditioner. The circuit with the electrostatic protection function comprisesa voltage detection circuit, a main discharge circuit and a circuit to be protected. The voltage detection circuit is used for detecting an electrostatic voltage between a power supply line and a grounding line. The main discharge circuit is arranged to provide a main discharge channel for a static current. The circuit to be protected comprises a main circuit unit to be protected and an auxiliaryprotection circuit. The auxiliary protection circuit can carry out secondary discharge on electrostatic energy which is not completely discharged from the main discharge circuit, and simultaneously can discharge the electrostatic energy entered from the signal input end of the main circuit unit to be protected so as to prevent static electricity from entering into the main circuit unit to be protected via ports except for the power supply line and the grounding line. In the technical scheme, electrostatic protection is performed on the main circuit unit to be protected simultaneously from thepower supply line and a signal line and the electrostatic protection capability of an integral circuit is increased.

Description

technical field [0001] The invention relates to the field of high-voltage integrated circuits, in particular to a circuit with an electrostatic protection function, a high-voltage integrated circuit and an air conditioner. Background technique [0002] A high-voltage integrated circuit is a gate drive circuit with functions such as undervoltage protection and logic control. It combines power electronics with semiconductor technology, gradually replaces traditional discrete components, and is increasingly used in IGBT, high-power MOSFET drive field. Electrostatic discharge (ESD) phenomenon is one of the most important reliability problems that cause failure of integrated circuit products. Relevant research surveys show that 30% of integrated circuit failure products are caused by electrostatic discharge phenomena. In the process of manufacturing, packaging, testing, and transportation of integrated circuit chips, various degrees of electrostatic discharge events will occur....

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): H02H9/04
CPCH02H9/047H02H9/046
Inventor 刘东子冯宇翔
Owner GD MIDEA AIR-CONDITIONING EQUIP 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