Electromagnetic valve circuit
The utility model relates to an electromagnetic valve circuit. The circuit comprises a rectification circuit and a BUCK voltage reduction circuit. And a solenoid valve driving and protecting circuit,the output end of the rectifying circuit is connected to the drain electrode of the power supply cont...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to an electromagnetic valve circuit. The circuit comprises a rectification circuit and a BUCK voltage reduction circuit. And a solenoid valve driving and protecting circuit,the output end of the rectifying circuit is connected to the drain electrode of the power supply control power switch; the output voltage of the power supply circuit is led back through a diode; one path is connected to the feedback input end of the power supply control power switch after being subjected to voltage division by a first resistor and a second resistor; the other path is connected toa VDD power supply end of the power supply control power switch; a bypass capacitor is connected in parallel between the VDD power supply end of the power supply control power switch and the source end of the power supply control power switch, the source end of the power supply control power switch and the current detection end of the power supply control power switch are connected in parallel with a third resistor, and th |
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