Part Number:TMS320F28379S
Tool/software: Code Composer Studio
Hi,
My code controls the maxon DC motor by PWM with H-Bridge.
The DC motor's Nominal voltage is 12Vdc and nominal speed is 5990 rpm.
But my custom motor controller module can not get max speed of this motor.
When I control this motor by Maxon motor controll, EPOS2, this motor can operate with max speed.
But, my custom board can not.
My custom board use 12Vdc power and max peak voltage of PWM is 12Vdc.
To get max speed, I drive the PWM signal to H-bridge with almost high, duty is 99.9%. average is almost 12Vdc
I have check what the EPOS2 does, I got the the information that the EPOS2 drives the motor with 24Vdc peak with 50% duty(average 12Vdc) for max speed.
I assume that my problem is from this difference.
Am I right?
The 24Vdc peak with 50% duty is better than 12Vdc with 100% duty for motor power to get max speed?
BR
Paul