Hello guys/girls,
In this project I'm working with two stepper motors (3V, 2A each) from a 6V battery. I used a voltage regulator (LM338) to get 3V. I built the typical circuit provided in the LM338 datasheet. Then I used the output to power the two motor drivers.
The problem is that the measured current going out of the battery doesn't exceed 400mA. I tried to directly power the motor driver, and it was approximately 2.5A.
My guess is that the input impedance has something to do with the problem, and to come over it a MOSFET is needed. That is my guess, and i'm waiting to hear your interesting explanation/solutions.
thanks,
Abdullah