I'm trying to power two DC motors in parallel through two motor drivers as shown in the attached diagram.
If its just a motor (no driver) then parallel connection yields same voltage and half of the current for each of the motor.
Is there any difference while parallel connecting through motor drivers? (such as any internal changes ?) Is my circuit correct?
My power supply has two sets of positive and negative terminals. If I use two sets of terminals from the power supply separately for each motor, How are the current and the voltage affected?
mano_v:
If its just a motor (no driver) then parallel connection yields same voltage and half of the current for each of the motor.
I think that starting assumption is flawed.
If two electrical components are each connected in parallel to the same power supply each device will draw the current it requires - think about your washing machine and your phone charger.
If you have two identical motors connected in parallel then the motor with the heavier load will draw more current.
The situation will not be any different if the motors are powered through two motor drivers assuming the PWM setting is the same for both drivers.
With motor drivers if one motor overloads the supply both controllers may reset (or go haywire if its not very good). However if the controllers have a current-limiting option you can set them to prevent overload.
