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Power supply circuit, circuit fault detection method, circuit board and vehicle air conditioner

A technology for power supply circuits and detection components, which is applied in voltage/current isolation, current/voltage measurement, instruments, etc., and can solve problems such as failure of power supply circuits and large voltage values.

Active Publication Date: 2022-07-19
GUANGZHOU HUALING REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When one of the switch components does not work normally, such as abnormal conduction, the voltage value loaded on the other switch component will be large and easily lead to damage, thereby causing the power supply circuit to fail. The existing power supply circuit is not correct. Measures to detect failures due to switching components not functioning properly

Method used

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  • Power supply circuit, circuit fault detection method, circuit board and vehicle air conditioner
  • Power supply circuit, circuit fault detection method, circuit board and vehicle air conditioner
  • Power supply circuit, circuit fault detection method, circuit board and vehicle air conditioner

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Embodiment Construction

[0082] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0083] In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and ...

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Abstract

The invention discloses a power supply circuit, a circuit fault detection method, a circuit board and a vehicle-mounted air conditioner. The power supply circuit includes a booster circuit, a first detection component and a controller. The booster circuit includes a first voltage doubling component and a second voltage doubling component. component, switch component, first capacitor and second capacitor, the first detection component is connected to the switch component, the controller is respectively connected to the first detection component and the switch component, by setting the first detection component, the first detection component is used to obtain the first switch component The controller can detect the working state of the switch assembly according to the first voltage value. Therefore, the above-mentioned power supply circuit can detect the failure caused by the switch assembly not working normally, which can improve the reliability of the operation.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and in particular, to a power supply circuit, a circuit fault detection method, a circuit board, a vehicle-mounted air conditioner, and a computer-readable storage medium. Background technique [0002] At present, car air conditioners are generally driven by batteries, but using batteries to directly drive the compressor needs to output a very large current, so that the compressor needs to be wound with a very thick copper wire; the existing car air conditioner power supply circuit generally uses the battery After the voltage is boosted and converted, it is provided to the compressor. Since the voltage boost can reduce the current under the same power, the purpose of reducing the volume and cost of the compressor can be achieved. However, the existing booster power supply circuit generally adopts two interleaved booster circuits, and uses two switching components to control the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R19/00G01R15/14B60H1/00
CPCG01R31/00G01R19/0084G01R15/14B60H1/00428Y02T10/88
Inventor 霍兆镜
Owner GUANGZHOU HUALING REFRIGERATION EQUIP
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