Solenoid PWM Control
Posted: Mon Oct 15, 2018 3:00 pm
I'm considering using the RP for PWM control of a solenoid. The switching frequency is 50 Hz. The duty cycle must be variable from 0 % to 100 % in very small increments (0.004 ms). This requires an output clock rate of at least 250 kHz. The output of the RP will be connected to the gate of an N-Channel Mosfet (FQP30N06L). The fast analog output is more than capable of the required speed but is limited to just +/- 1 V. The slow digital outputs switch 3.3 V (which is ideal) but are limited to 100 kHz.
Is there a way to increase the voltage of the fast anlaog output? Or is there a way to increase the speed of the slow digital outputs? Or is there another solution?
Regards, Ben
Is there a way to increase the voltage of the fast anlaog output? Or is there a way to increase the speed of the slow digital outputs? Or is there another solution?
Regards, Ben