baddabaddabing
New Member
Hi,
I'm doing a university project (mechanical not electrical engineering, hence my lack of knowledge) which requires an analogue signal (from LabVIEW) to be converted into a PWM signal to drive a servo motor.
The servo requires a frequency of 50Hz with the duty cycle controlled by the LabVIEW output (ranging from 1ms to 2ms). I was intending to use a 555 timer, but I can't find a configuration that lets me obtain such a low duty cycle but keep the frequency constant.
Could anyone point me in the right direction for building such a circuit or at least tell me if I'm approaching this the wrong way? I had looked at using op-amps as an alternative but I've found the same problem.
Thanks a bunch,
Stuart
I'm doing a university project (mechanical not electrical engineering, hence my lack of knowledge) which requires an analogue signal (from LabVIEW) to be converted into a PWM signal to drive a servo motor.
The servo requires a frequency of 50Hz with the duty cycle controlled by the LabVIEW output (ranging from 1ms to 2ms). I was intending to use a 555 timer, but I can't find a configuration that lets me obtain such a low duty cycle but keep the frequency constant.
Could anyone point me in the right direction for building such a circuit or at least tell me if I'm approaching this the wrong way? I had looked at using op-amps as an alternative but I've found the same problem.
Thanks a bunch,
Stuart