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driving a 12 V realy coil

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sushil_204

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hey guys i want some help
i want to driving 12V 60 ohm realy coil using 12V 400 mA battery now i have to control the power supply of the battery to relay using microcontroller so can u give me a circuit with the specification of all necessary transistor , resistors and other components needed..
 

You may use this relay driver if your microcontroller gives out a "HI" logic when triggered. If not you may convert the same or use a PNP transistor in place of NPN.... Cheers
 

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