Calculator for PWM with Low Pass Filter
When using a PWM (Pulse Width Modulation) signal it can be useful to smoothen the signal with an RC or RL low pass filter.
If the filter's cutoff frequency is significantly lower than the PWM frequency then the output voltage will be an average of the PWM voltage.
You can enter the filter and PWM properties below and then use the plot to see the resulting signal.
Please note that when using a larger timescale the plotted signal can be rendered wrongly due to aliasing. In that case it should be sufficient to slightly change the timescale using the Time span slider.
