Problem
In LT spice generate a pulse that has a frequency of 1 Hz. It is 5 V when on and 0 V when off. It is on for .2 seconds and off for the rest of the time. Put this into a first-order low-pass filter. The C is 1 uF. What value of the resistor will cause the average value across the resistor (once steady state is reached) to deviate by no more than 10% of the average value (this is called the ripple voltage). Submit the circuit schematic and the input and output waveforms for this case.
What is your R-value, what is ripple voltage, and what is the average voltage?
If the uptime of the pulse is always the same, what would be the ripple voltage and average voltage if the frequency of the input were 2 Hz?
If the uptime of the pulse is always the same, what would be the ripple voltage and average voltage if the frequency of the input were 0.5 Hz?