Vehicle-mounted electric appliance surge protection circuit
The utility model relates to the technical field of the automobile electronic industry, and particularly discloses a vehicle-mounted electric appliance surge protection circuit which comprises an MOS tube, a first diode, a second diode, a first resistor, a second resistor and a capacitor, the drain...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to the technical field of the automobile electronic industry, and particularly discloses a vehicle-mounted electric appliance surge protection circuit which comprises an MOS tube, a first diode, a second diode, a first resistor, a second resistor and a capacitor, the drain electrode of the MOS tube is respectively connected with the negative electrode of the first diode, one end of the first resistor and a surge voltage input end Vin, and the other end of the first resistor is connected with the capacitor. The grid electrode of the MOS tube is connected with the other end of the first resistor, one end of the second resistor, the negative electrode of the second diode and one end of the capacitor, and the source electrode of the MOS tube is connected with a voltage output end Vout. The positive electrode of the first diode, the other end of the second resistor, the positive electrode of the second diode and the other end of the capacitor are connected and then grounded. The vehicle-m |
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