Charging pulse starts at the bottom of the ripple and ends at the peak of the waveform. When ripple is larger this time gets longer. When you comprehend this we can go forward.
Amount of ripple depends on capacitance and load current and does not depend how capacitor is charged since ripple is an effect of voltage drop during capacitor discharge cycle hence has nothing to do with capacitor charging. The way capacitor is charged will affect voltage on capacitor but ripple will be always the same percentage of this voltage. When you comprehend this we can go forward.
Your understanding of electronics is poor, IMHO and I find you keep arguing just for the sake of it. Sorry, for the "when you comprehend..." but that's the unpleasant language you use and another reason I don't want to continue discussing this and perhaps anything else in the future.
Amount of ripple depends on capacitance and load current and does not depend how capacitor is charged since ripple is an effect of voltage drop during capacitor discharge cycle hence has nothing to do with capacitor charging. The way capacitor is charged will affect voltage on capacitor but ripple will be always the same percentage of this voltage. When you comprehend this we can go forward.
The ESR of the film capacitor is almost meaningless as it does not charge the capacitors of the amplifier.ESR is very important since any ESR in the charging circuit will limit maksimum voltage on capacitor. When you comprehend this we can go forward.
Of course it will get longer. How do you think an LC based PFC works? It works by essentially extending the conduction angle .... i.e. the time the capacitor is being charged.No it won't. Voltage droop on capacitor after peak is related only to capacitance and load current. Amount of this voltage drop (amplitude of ripple) defines width of charging pulse, since capacitor is charged only from the bottom point to next peak. This bottom point was defined by discharge cycle thus charging has nothing to do with it. PFC does not work by by extending conduction angle but rather eliminating (shifting) phase between voltage and current to present resistive load to mains. Averaging (filtering) current pulses coming from PS to draw current from mains during whole cycle is exactly what Furman does. They call it (improperly) Power Factor correction but it does not change any conduction angle. It only averages current pulses over whole period. When you comprehend this we can go forward.
Your understanding of electronics is poor, IMHO and I find you keep arguing just for the sake of it. Sorry, for the "when you comprehend..." but that's the unpleasant language you use and another reason I don't want to continue discussing this and perhaps anything else in the future.