Hello,
I am in dire need of help!
I am trying to use DRV8838 motor drive to generate the following biphasic current pulse. Arduino pwm can provide EN and PH input to the DRV8838.
Note that is a "CURRENT pulse" and not a voltage pulse because exactly amount of current input is important (.e.g in case of varying load the current need to be controlled)
How do I keep the current level constant like the following time series of current pulses? Can someone suggest a part that I can hookup to the input terminal of the motor drive?
My initial idea as to hook up a current sink to Vm input pin and synchronize the on/off timing of the current sink with the EN and PH but I am not sure how to connect Vm to current sink.
Thank you very much for your helpful advice.
Best,
WJ
#Arduino
