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gear motor advise

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cbiblis

New Member
i will be designing a new thermostat to include the motor driver. i have a 12v 6amp transformer on board. I am using 100ma for the thermo, 100ma for the lighting (leds) and i would like to tap the motor supply in as well.
 

HarveyH42

Banned
A resistor is going to get hot. The motor sound like it was intended to run on 12v. PWM is your best choice, not really that bad. You would also keep the motor's torque, won't have much power with a resistor. Would also help if you gave some info on the application. Is it a single speed/direction, or variable speed, reversing?
 

Boncuk

New Member
Hi,

you might use a pot connected directly to the motor, but it has to be a wire wound type to dissipate enough power not to burn up.

Using an N-channel-Fet transistor any pot suffices to vary the motor voltage.

Here is a super simple circuit to change motor voltage/rpm.

Boncuk
 

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Nhecko

New Member
I agree some points in that statement. It is actually a number of different thermostats that control the overall temperature. When the dryer's heat gets too high, it has one thermostat that breaks the circuit and allows it to cool down.


_________________
Thermostat
 
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