Unlock instant, AI-driven research and patent intelligence for your innovation.

Transient voltage protection circuit, device and method

A technology for protecting circuits and transient voltages, which is applied in the field of transient voltage protection circuits and can solve problems such as permanent damage, damage, and reliability issues

Active Publication Date: 2019-07-05
INFINEON TECH AG
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Transient voltage spikes and pulses frequently exceed the safe operating margins of sensitive electronic components, semiconductor devices, discrete circuits and integrated circuits (ICs), causing permanent damage
Large ESD events can render affected components unusable, while repeated smaller ESD events can cause damage over time, leading to reliability issues and eventual unusability

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
  • Transient voltage protection circuit, device and method
  • Transient voltage protection circuit, device and method
  • Transient voltage protection circuit, device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The making and using of various embodiments are discussed in detail below. It should be understood, however, that the various embodiments described herein are applicable to a wide variety of specific contexts. The specific embodiments discussed are merely illustrations of specific ways to make and use various embodiments and should not be construed in a limiting sense.

[0020] Generally, ESD protection circuits protect circuits sensitive to ESD events from positive and negative voltage transients. For integrated circuit design in power technology, both negative and positive voltage levels at pins are often required. For example, the pins may be rated to a maximum voltage rating of, eg, ±40V with respect to 0V at the ground pin.

[0021] HVAC circuits are often implemented using Zener diodes. In high power technology, Zener diodes are obtained by forming an NPN bipolar junction transistor (BJT) and shorting the collector to the base terminal of the NPN BJT. However,...

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

Transient voltage protection circuits, devices and methods are disclosed. The transient voltage protection circuit includes a first input / output pad, a second input / output pad, and a trigger circuit coupled therebetween. The trigger circuit includes a first trigger element including a first input / output node, a second input / output node, a third input / output node, a first substrate diode coupled to the third input / output node. The trigger circuit also includes a first resistor coupled between the first input / output node and the second input / output node. The trigger circuit also includes a second trigger element comprising a fourth input / output node, a fifth input / output node, a sixth input / output node, a second substrate diode coupled to the sixth input / output node, wherein the second The input / output node is coupled to a fourth input / output node. The trigger circuit also includes a second resistor coupled between the fourth input / output node and the fifth input / output node.

Description

technical field [0001] The present invention relates generally to electronic circuits and devices, and in particular embodiments to transient voltage protection circuits, devices and methods. Background technique [0002] Transient voltage spikes and voltage pulses in electronic circuits can be caused by electrostatic discharge (ESD) events. Such an ESD event may occur when two charged objects come into physical proximity and are the result of an imbalance in potential between the two objects. A common example of an ESD event is the discharge of static electricity by a person touching eg a metal doorknob. Transient voltage spikes and pulses frequently exceed the safe operating margins of sensitive electronic components, semiconductor devices, discrete circuits, and integrated circuits (ICs), causing permanent damage. Large ESD events can render affected components unusable, while repeated smaller ESD events can cause damage over time, leading to reliability issues and even...

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 Patents(China)
IPC IPC(8): H02H9/00H02H9/04H10N97/00
CPCH02H9/005H02H9/04H01L27/0259H01L27/0761H02H9/046H01L27/0285H01L29/732H01L28/20H01L25/16H01L27/0647H01L29/0657H01L29/10H01L29/78H01L29/866H02H9/045
Inventor 曹轶群
Owner INFINEON TECH AG