hi,I think I asked you some posts ago to explain me again that matter about the COM because I haven't understood it.
I can't also understand what happends to the Source Voltage! Also the resistor we should simulate is of 330 ohms, so How can I calculate C through that formula that Jony130 said?
I posted a clip from LTS Help in my post #56, it a Node which you can use as a reference in order to to measure using the two probes method.
You know the Vpeak and Vrms of the V1 source.
Calculate [Vpeak - the two diode voltage drops] thats the V for Jony's Eq:
Knowing the Vpk, you can calculate the Ipeak thru the 330R
You also know the required ripple voltage percentage.
So thats C in Farads = Vpk * 0.01/ %Vrip
I will not give you the answer, so calc what you think it is and let me know.
Use LTS to check your calculations..
E