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Overunity Machines Forum



reed switch and transistor?

Started by mcorrade, February 22, 2008, 04:23:07 PM

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mcorrade

February 22, 2008, 04:23:07 PM
Can someone point me to where I could find out how to wire up a transistor to my pulse motor so my reed switch won't burn out....

thanks a million

gyulasun

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February 22, 2008, 07:34:13 PM
You can see the principle here:  http://www.simplemotor.com/tmotor.htm

to reduce base current it is advised to connect a 4.7 kOhm to 10 kOhm resistor in series with the reed switch.

coil here is in the emitter,  you may place it in the collector too.

be sure to use a transistor with correct current/voltage ratings for your task,  thinking of back EMF voltage pulse too.

Gyula
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