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I need one of these to control a 10 amp linear actuator (12 volt dc motor driven). I've tried various relay setups and the control signal pulses too much and burns up the contacts. This would be a 12 volt application. Would I just spec larger transistors for Q1 thru 4? (any ideas on which...
Thanks, it looks pretty simple - the reversing polarity of p1/p2 would turn on different mosfets to determine motor direction. what is the 'turn on' voltage for the mosfets/what value do r1/r2 need to be? p1/p2 is +/- 12 vdc and U1 would be 12v as well.
thanks again,
Pat
I'm need a current amplifier to boost a 12v signal that runs an actuator - leads change polarity to change direction with zero voltage being stopped. I tried an H bridge made up of cube relays, but it cycles too much and the relay life is about 16 hours. An FET H bridge looks like it would...
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