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PFC circuit detection method and device, and readable storage medium

A circuit detection and circuit technology, applied in circuit devices, emergency protection circuit devices, measurement devices, etc., can solve problems such as failure to detect faults

Pending Publication Date: 2021-09-14
SHANGHAI HIGHLY (GROUP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a PFC circuit detection method and device and a readable storage medium, which are used to solve the problem that the technical solutions in the prior art cannot detect faults when the hardware circuit is a dual-channel PFC circuit or a multi-channel PFC circuit. question

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  • PFC circuit detection method and device, and readable storage medium
  • PFC circuit detection method and device, and readable storage medium
  • PFC circuit detection method and device, and readable storage medium

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Embodiment Construction

[0037] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. The advantages and features of the present invention will be more apparent from the following description. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right" etc. is based on the orientation or positional relationship shown in the drawings , is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orien...

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Abstract

The invention discloses a PFC circuit detection method and device, and a readable storage medium. Aiming at a PFC circuit comprising at least two PFC sub-circuits, when the at least two PFC sub-circuits are started at the same time, the first output voltage and the first power of the PFC circuit are detected. The first output voltage is compared with a first threshold value, and if the first output voltage exceeds the range of the first threshold value, the PFC circuit is turned off to protect the PFC circuit; if the first output voltage does not exceed the range of the first threshold value, whether the PFC sub-circuits in the PFC circuit break down or not is further judged by sequentially detecting the second output voltage and the second power of the PFC sub-circuits, and if the fault is found in the detection process, the second output voltage and the second power of one PFC sub-circuit are not equal to the first output voltage and the first power, the PFC circuit is turned off to protect the PFC circuit.

Description

technical field [0001] The present invention relates to the technical field of PFC (Power Factor Correction, power factor correction) circuits, in particular to a PFC circuit detection method and device and a readable storage medium. Background technique [0002] In the related art, the technology of high-frequency multi-channel PFC circuit is more and more widely used, especially in the occasions where the load voltage requirement is high and the power is high. Whether the PFC circuit can operate normally directly affects the reliable operation of the subsequent load. At present, the relevant PFC technologies mainly include hardware PFC technology and software PFC technology. Although software PFC technology is difficult to design, it has gradually become an industry development trend because of its obvious cost advantage. Software PFC technology needs to ensure the integrity and accuracy of the hardware circuit. Once a part of the hardware circuit fails, it cannot be judge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/42H02M1/36H02H7/10H02H1/00G01R31/28
CPCH02M1/4208H02M1/36H02H7/10H02H1/0007G01R31/2843Y02B70/10
Inventor 童学志张龙张海锋
Owner SHANGHAI HIGHLY (GROUP) CO LTD
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