tree phase voltage formulas
instead of feeding voltage directly from power line ,m feeding voltage to it through a UPS unit . a readymade voltmeter and a multimeter both are showing 203 volts AC ,but this circuit shows 436 volts.my ad and microcontroller section is perfect and voltage divider section too is perfect,but peak detector circuit is showing error at the output. i sholud be getting voltage at around 1.1volts DC at peak detector output but now its showing something around 2.08 volts dc. i think the UPS unit isnt providing full sinewave and that too not at 50 hz. how can i make this peak detector a generalized one.
sorry for disturbing u again. i tried changing the values of capacitor and resistor and even the opamp which u said,but still not done...