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Simple dc motor driver

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dirtyb15

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okay, i feel pretty stupid, but it has been a while since i had my electronics courses. I need to turn a 3V dc pager motor on and off. I will have a digital signal from a microcontroller, but it will not supply the 120ma that I need. I assume I should just use a transistor driver, but what tranistor should i use, resistor values ect.. Thanks for any advice!!
 
dirtyb15 said:
okay, i feel pretty stupid, but it has been a while since i had my electronics courses. I need to turn a 3V dc pager motor on and off. I will have a digital signal from a microcontroller, but it will not supply the 120ma that I need. I assume I should just use a transistor driver, but what tranistor should i use, resistor values ect.. Thanks for any advice!!

Check my PIC tuorials, the 'Hardware Extras' section give some driver examples - a BC337 or similar is all you need.
 
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