IGBT protection circuit and air conditioner
The utility model discloses an IGBT protection circuit and an air conditioner, the IGBT protection circuit comprises a rectification module, a surge protection module and a control module, the input end of the rectification module is connected with a power grid and is used for converting an AC elect...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses an IGBT protection circuit and an air conditioner, the IGBT protection circuit comprises a rectification module, a surge protection module and a control module, the input end of the rectification module is connected with a power grid and is used for converting an AC electric signal into a DC electric signal, and the first output end of the rectification module is grounded; the surge protection module comprises an inductance unit and an energy storage unit, the first end of the inductance unit is connected with the first output end of the rectification module, the second end of the inductance unit is connected with one end of the IGBT module and the first end of the energy storage unit, the second end of the energy storage unit is grounded, and the energy storageunit is used for storing surge electric energy; and the control module is connected with the control end of the IGBT module and is used for controlling the IGBT module to be turned off when the rectification module outputs s |
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