While reading about how a half wave rectified output is filtered using a capacitor, I came across the following waveforms:
In the interval from 0 to , the diode is forward biased, and hence, conducts. This causes the capacitor to be charged up to the peak voltage. In the interval from to , the diode is reverse biased, and therefore, does not conduct. So the capacitor discharges through the load resistance at a rate longer than that of the input.
That much is clear to me. However, I am not exactly sure about what happens in the interval from to . According to me, the input voltage is simply decreasing here, so the diode should remain forward biased, and hence conduct. But the above waveform shows otherwise. So, is the capacitor discharging in this interval ? If yes, then is it different from the discharge in the interval from to ?