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Methods and apparatus related to precision input power protection device

A technology of protection devices and equipment, which is applied in the direction of emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., and can solve problems such as failure mode integrated circuit damage

Active Publication Date: 2014-09-17
FAIRCHILD SEMICON SUZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the overvoltage protection device selected for overvoltage protection may not provide overvoltage protection to the integrated circuit in the desired manner
For example, tolerance induced dead spots of overvoltage protection devices that are not properly matched to the integrated circuit to be protected can lead to undesired overvoltage protection
Various irregular failure modes and / or damage to integrated circuits intended for protection at the input power port may occur

Method used

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  • Methods and apparatus related to precision input power protection device
  • Methods and apparatus related to precision input power protection device
  • Methods and apparatus related to precision input power protection device

Examples

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Embodiment Construction

[0015] figure 1 is a schematic diagram illustrating an overvoltage protection device 100 intended to protect a load 140 (eg, a downstream integrated circuit) from an overvoltage condition (also referred to as an overvoltage event). The overvoltage protection device 100 may be part of an input power protection component (not shown) connected to the load 140 . Such as figure 1 As shown, the overvoltage protection device 100 and the load 140 are included in the computing device 170 . Computing device 170 may be configured to connect to a source 130 (also referred to as a power source), which is configured to provide power to computing device 170 . In some embodiments, overvoltage protection device 100 may be configured to provide protection to load 140 that must be achieved taking into account the operating point (eg, the desired operating point) of source 130 .

[0016] Such as figure 1 As shown, the overvoltage protection device 100 is connected to an input terminal (eg, po...

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PUM

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Abstract

The invention relates to a method and an apparatus related to a precision input power protection device. In one general aspect, the apparatus can include an input terminal and an overvoltage protection device coupled to the input terminal and configured to receive energy via the input terminal. The overvoltage protection device can have a breakdown voltage at an ambient temperature less than a target maximum operating voltage of a source configured to be received at the input terminal. The apparatus can also include an output terminal coupled to the overvoltage protection device and a load.

Description

technical field [0001] This note refers to input power port protection components. Background technique [0002] Overvoltage protection devices, such as transient voltage suppression (TVS) devices, may be used to protect integrated circuits (eg, downstream integrated circuits) from undesired power supply conditions (eg, overvoltage conditions). The overvoltage protection device may not be properly tuned for the integrated circuit it is intended to protect. Therefore, an overvoltage protection device selected for overvoltage protection may not provide overvoltage protection of the integrated circuit in the desired manner. For example, tolerance induced dead spots of overvoltage protection devices that are not properly matched to the integrated circuit to be protected can lead to undesired overvoltage protection. Various irregular failure modes and / or damage to integrated circuits intended for protection at the input power port may occur. Accordingly, there is a need for sy...

Claims

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Application Information

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IPC IPC(8): H02H9/04
CPCH02H9/005H02H9/04
Inventor 阿德里安·米科莱扎克
Owner FAIRCHILD SEMICON SUZHOU
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