no voltage change as current changes.

Thread Starter


Joined Feb 5, 2007
How can i control the voltage on my power supply so that the voltage does not change as the current or load changes.

Here is a example.
I have my power supply and i am breaking in a small electric motor.
when i start it draws 4 amps but as it breaks in it drops to 2.5 or even 2 amps. how can i control the voltage so it does not change as the current/load changes.

for the help


Joined Apr 20, 2004

A load takes as much power as it needs. If you have a "stiff" supply - meaning that the power supply can handle the current needs of the load - thenthe supply voltage will not change as the motor draw goes from 4 amps down to 2.

Just make sure the power supply is regulated, and is rated for more than 4 amps.