dear friend, I should take this requirement as a report to my presentation, where can I find this requirements, I mean a text or book or ...?The main requirement is that the PWM frequency be higher than the Nyquist limit of twice the highest modulation frequency. For good response a value at least 10 times the highest dither frequency or ≥3000Hz is recommended..
The servo likely has inductance which will smooth and average the PWM pulses into a steady current, which is what you want. A higher frequency actually helps, since there is less ripple in the average current value.But my servo valve current is so high (about 1 amp) to be applicable due to 3000Hz PWM, I wnoder if you tell me what should I do?
yes, i got it.The servo likely has inductance which will smooth and average the PWM pulses into a steady current, which is what you want. A higher frequency actually helps, since there is less ripple in the average current value.
The PWM driver just needs sufficient current capacity to provide the 1 amp current.
Do you understand how PWM works?
|Thread starter||Similar threads||Forum||Replies||Date|
|B||Implement footswitch to microcontroller I/O pin.||Microcontrollers||6|
|B||implement MOSCAP in an FPGA (or another digital IC)||FPGAs (Field Programmable Gate Array)||4|
|S||Attempt to implement an Observer(state estimator) in Control Theory||Homework Help||0|
|T||Need ideas on how to implement||General Electronics Chat||1|
|Q||How to implement a 5v variable rheostat overide.||General Electronics Chat||22|
by Ikimi .O
by Steve Arar
by Jake Hertz