Hi everyone,
I'm looking at making a really simple circuit which controls the speed of my cars heater. I'd like it to start at about 6 volts, and go to it's MAX speed of 12 volts with a potentiometer.
I've had no problem using a voltage divider, but I also want to turn the heater off when the knob is turned all the way, and I have no idea how.
I'm not sure if I can buy pots which have a 'switch' or not, but if I can't I was wondering if there was some other way (not super complicated) to turn it off, and vary the voltage.
I don't know much about electronics, and almost everything I've read has confused me more . Any help would be greatly appreciated,
LennieSmith
I'm looking at making a really simple circuit which controls the speed of my cars heater. I'd like it to start at about 6 volts, and go to it's MAX speed of 12 volts with a potentiometer.
I've had no problem using a voltage divider, but I also want to turn the heater off when the knob is turned all the way, and I have no idea how.
I'm not sure if I can buy pots which have a 'switch' or not, but if I can't I was wondering if there was some other way (not super complicated) to turn it off, and vary the voltage.
I don't know much about electronics, and almost everything I've read has confused me more . Any help would be greatly appreciated,
LennieSmith