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Short-circuit protection method and device for a voltage regulating circuit

A voltage regulation circuit and short-circuit protection technology, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of long processing time, slow response of short-circuit protection function, inability to distinguish, etc., to reduce equipment complexity, improve response speed and The effect of reliability

Active Publication Date: 2021-11-16
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing pulse width voltage regulation circuit cannot control the abnormal short circuit from input to output, which can only be realized by the overvoltage protection function.
However, the overvoltage protection function cannot distinguish whether the abnormality is caused by the decrease of the input voltage or the abnormality caused by the short circuit; and the overvoltage protection needs to avoid the false triggering caused by the peak glitch during the dynamic response, so the processing time is long and the efficiency is low
[0003] Aiming at the problems of slow response, poor stability, and low pertinence of the short-circuit protection function of the voltage regulation circuit in the prior art, there is currently no effective solution

Method used

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0027] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same. It can be seen that "first" and "second " is only for the convenience of expression, and should not be understood as a limitation to the embodiments of the present invention, and will not be described one by one in the subsequent embodiments.

[0028] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a method capable of implementing short-circuit protection for different voltage regulation circuits or differen...

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Abstract

The invention discloses a short-circuit protection method and device for a voltage regulation circuit, comprising: using an input voltage state confirmation circuit to generate and output an input voltage state signal for indicating the input voltage state; using an output voltage state confirmation circuit to generate and output an input voltage state signal for an output voltage state signal indicating the state of the output voltage; in response to the input voltage state signal indicating that the input voltage is normal and the output voltage state signal indicating that the output voltage is abnormal, the operation signal control circuit is used to control the voltage regulation circuit to stop working. The technical scheme of the present invention can perform short-circuit protection on different voltage regulating circuits or different types of voltage regulating circuits in a targeted manner, improve response speed and reliability, and reduce equipment complexity.

Description

technical field [0001] The present invention relates to the field of electronic circuits, and more specifically, to a short circuit protection method and device for a voltage regulating circuit. Background technique [0002] The existing pulse width voltage regulation circuit cannot control the abnormal short circuit from input to output, which can only be realized by the overvoltage protection function. However, the overvoltage protection function cannot distinguish whether the abnormality is caused by the decrease of the input voltage or the abnormality caused by the short circuit; and the overvoltage protection needs to avoid the false triggering caused by the peak glitch during the dynamic response, so the processing time is long and the efficiency is low. [0003] Aiming at the problems of slow response, poor stability and low pertinence of the short-circuit protection function of the voltage regulation circuit in the prior art, there is no effective solution at present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/12
CPCH02H7/1213
Inventor 郭雯曹伟华
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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