IGBT (Insulated Gate Bipolar Translator) switch damage detection device and detection method of single-phase intelligent power utilization protector
A technology for electric protectors and switch damage, which is applied in the field of IGBT switch damage detection devices, can solve problems such as failure to detect damage to IGBT electronic switches, and achieve the effects of improving detection capabilities and reliability
Inactive Publication Date: 2022-05-17
华邦创科(惠州市)智能科技有限公司
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Problems solved by technology
[0003] This application provides an IGBT switch damage detection device for a single-phase intelligent power protector, which is used to solve the technical problem that the damaged IGBT electronic switch cannot be detected in the existing device
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[0028] The embodiment of the present application discloses an IGBT switch damage detection device for a single-phase smart power protector, which is used to solve the technical problem that the damaged IGBT electronic switch cannot be detected in the existing device.
[0029] see Figure 1~Figure 4 , an IGBT switch damage detection device of a single-phase intelligent power protector, comprising: a plurality of IGBT switch groups 100, a first absorption circuit 200, a second absorption circuit 300, an IGBT voltage detection unit 400, an MCU control unit 500 and a relay The control unit 600, it should be noted that the first absorbing circuit 200 is used to absorb the peak voltage at both ends of the IGBT switch group 100 to improve the stability of the device; the second absorbing circuit 300 is used to absorb the peak voltage at the output end of the IGBT switch group. Stabilize the voltage to further make the voltage more stable; the IGBT voltage detection unit 400 is used t...
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The invention relates to an IGBT switch damage detection device and detection method of a single-phase intelligent power utilization protector, the IGBT switch damage detection device comprises a plurality of IGBT switch groups, a first absorption circuit, a second absorption circuit, an IGBT voltage detection unit, an MCU control unit and a relay control unit, in one IGBT switch group, the IGBT switch group comprises an IGBT switch unit and an IGBT driving circuit, and the IGBT driving circuit is connected with the MCU control unit. The input end of the IGBT switch unit is used for being connected with a live wire of alternating current, the output end of the IGBT switch unit is electrically connected with the input end of the second absorption circuit and one input end of the IGBT voltage detection unit, the output end of the second absorption circuit is electrically connected with the IGBT voltage detection unit, and the IGBT voltage detection unit is further used for detecting the voltage between the zero line and the live wire. The first absorption circuit is connected with the IGBT switch unit in parallel, and the MCU control unit is further electrically connected with the IGBT voltage detection unit, the IGBT drive circuit and the relay control unit. According to the IGBT switching device, the detection capability of the IGBT switching device can be improved, and the reliability of the IGBT switching device is further improved.
Description
technical field [0001] The invention relates to the field of single-phase smart power protectors, in particular to an IGBT switch damage detection device of a single-phase smart power protector. Background technique [0002] The single-phase smart power protector uses the electronic switch IGBT as the main device of the device, and the short-circuit spark suppression function is one of its main functions. If the IGBT is damaged during operation, but it is not detected, then after the short circuit A large number of sparks will appear, thereby igniting the surrounding combustibles, which is absolutely not allowed to occur during operation, so how to detect damaged IGBT electronic switches in single-phase smart power protectors is a need for those skilled in the art. considerations. Contents of the invention [0003] The application provides a damage detection device for an IGBT switch of a single-phase intelligent power protector, which is used to solve the technical probl...
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Login to View More IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 桂斌李名银刘震张友华曾肖辉
Owner 华邦创科(惠州市)智能科技有限公司