Recent content by zouzanda

well it is a good idea but i canot use op amps sorry for wasting ur time any other ideas . i just can use thyristor diodes and resistors

no sir it won't work cz 1st i ne the two voltagers not to be A and -A i need them to be A and B second i need to do that using thyristor

Homework Statement i need to build a circuit which can charge a 12V 10 A battery to reach a votltage A and then stops charging until it reaches a voltage B it will rechrge again . i want to do this using thyristor Homework Equations The Attempt at a Solution i found a circuit...

i already discovered that i should use and rode and turn on it a wire and conect it to a batery but i can find anythin concerning measurements and how many number of turns i need to lift a 1 kg or even how many holtage i need so please can someone point me in the right direction ?

:redface: 1. i need to design an electro magnet that can lift a 1 Kg weight vertically with the minimum cost possible ANYONE GOT ANY IDEAS and i need it to be very presize i mean the measurements thanx

hey ok ill try to explain i have a transformer its from 220V to 12v i did a diode bridge for it and i measured the voltage by the multymeter it shows 12 v. but the thing is i need to add a capacitor to the bridge and a resistor to decrease the ripple and i donno how much the capacitor should be...

1. i have a transformor 12 v rms i want to do a full wave rectifier bridge with a capacitor and get a 12v dc 2. i need to know how i can calculat the capacitor needed and the resistor and wat to know how many voltage should the capacitor be (NB: i don't know wat is the current of the...