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Voltage drop in power supply

Posted: Tue Feb 02, 2016 2:25 pm
by Bonsaimaster
Does anyone have a calculator to determine voltage drop across a resistor and capacitor in parallel. I am trying to design a power supply for a three channel preamp. I have a basic design for the original but I am trying to change the voltages to accommodate each preamp. Is there an online calculator or way to design a power supply? Specifically with different transformers.

I am looking for these target voltages in the power supply- 380V, 380V, 360V, 350V, 310V

Thanks in advance