anotherbrick
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hello dear forum,
I have a full bridge driving a 24 V DC brush motor
I have measured the max current of H bridge with ACS sensor with STM32 uC
and wrote down for four different duty of PWM
I also measured the Vsource
I measured the L and R of the motor with LCR meter
I locked the rotor of the motor
however the calculated I max and measured I max are very different from each other
I have attached an excel file for calculating the I max of RL circuit from power electronics book of Muhammad Rashid
I tried with diferent R and L however still not a match
what am I doing wrong ?
please advise
thank you
I have a full bridge driving a 24 V DC brush motor
I have measured the max current of H bridge with ACS sensor with STM32 uC
and wrote down for four different duty of PWM
I also measured the Vsource
I measured the L and R of the motor with LCR meter
I locked the rotor of the motor
however the calculated I max and measured I max are very different from each other
I have attached an excel file for calculating the I max of RL circuit from power electronics book of Muhammad Rashid
I tried with diferent R and L however still not a match
what am I doing wrong ?
please advise
thank you