Overvoltage protection circuit, method and device, power supply equipment and computer readable medium

An overvoltage protection circuit and circuit technology, applied in the field of circuits, can solve problems such as resistance heating, loss, and no solution proposed

Inactive Publication Date: 2020-12-04
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former solution will cut off the power input, and the power supply will stop working; although the latter solution can keep the power supply working, the resistors connected in series will generate heat and loss, especially in high-voltage and high-current occasions. The loss and heat dissipation of the resistor will become a big problem
[0005] For the above problems, no effective solution has been proposed

Method used

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  • Overvoltage protection circuit, method and device, power supply equipment and computer readable medium
  • Overvoltage protection circuit, method and device, power supply equipment and computer readable medium
  • Overvoltage protection circuit, method and device, power supply equipment and computer readable medium

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Embodiment Construction

[0029] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0030] In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating the description of the present application and has no specific meaning by itself. Therefore, "module" and "component" may be mixedly used.

[0031] In the related art, the input voltage can be cut off b...

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Abstract

The invention relates to an overvoltage protection circuit, method and device, power supply equipment and a computer readable medium. The method comprises the following steps: acquiring a detection signal, wherein the detection signal is obtained by detecting a to-be-detected circuit; determining whether the voltage parameter of the to-be-detected circuit exceeds a parameter threshold by using thedetection signal; and when the voltage parameter is greater than or equal to the parameter threshold, dividing the voltage of a power supply input part by a voltage division part . According to the technical scheme, uninterrupted normal work of the power supply can be kept under the condition of overvoltage protection, so that the uninterrupted power supply of the bearing controller is guaranteedin the magnetic suspension bearing system, and the magnetic suspension bearing system is prevented from being damaged due to falling of the rotor during operation.

Description

technical field [0001] The present application relates to the field of circuit technology, and in particular to an overvoltage protection circuit, method, device, power supply equipment and computer readable medium. Background technique [0002] With the continuous development of power electronics technology and modern society, electric energy has become an indispensable resource. Sufficient and stable power supply is the basis for supporting the operation of modern society, so it is particularly important to protect the power supply. Especially in the application of magnetic levitation technology, how to provide continuous and stable power supply for the magnetic levitation bearing system is an urgent technical problem to be solved. [0003] The magnetic suspension bearing system uses electromagnetic force to suspend the rotor in the air, so that there is no mechanical contact between the rotor and the stator, and the magnetic suspension bearing system is often used in high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32G01R19/165H02H9/04
CPCG01R19/16538H02H9/045H02M1/32H02M1/325
Inventor 王凡严安顺李旭明赵聪
Owner GREE ELECTRIC APPLIANCES INC
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