This is a two question post:
1.
I'm attempting to run a motor thats rated 12v@1.5Amps at half the amp rating to slow the speed of it down.
I have tried using a resistor to limit the current, but that also drops the voltage. Is there a way to keep the motor running at 12v but halve the amps?
2.
I have also built a voltage divider that measures 6v at the test point between the two resistors, but when I place the motor in circuit, the voltage drops to 3v. What causes this and how do you calculate it?
1.
I'm attempting to run a motor thats rated 12v@1.5Amps at half the amp rating to slow the speed of it down.
I have tried using a resistor to limit the current, but that also drops the voltage. Is there a way to keep the motor running at 12v but halve the amps?
2.
I have also built a voltage divider that measures 6v at the test point between the two resistors, but when I place the motor in circuit, the voltage drops to 3v. What causes this and how do you calculate it?