about rectifiers ( Need Help )

Thread Starter

madness_22

Joined Apr 1, 2004
2
hi all ,,, i need help please ,, it may be a silly Q but i am countin on u to help me
the Q is
Why in full wave rectifiers using a function genrator instead of a low voltage center taped transformer will not work ?
 

bipin

Joined Mar 21, 2004
80
hi
if you give any ac wave to a rectifier in theory it works, the problems that you would have faced could be because of any of these reasons,
1- the input voltage that you would have given might be less than 1.4 volt which is lesser than the knee voltage of two silicon diodes. give 5v or above and try.
2-you would have placed a load resistor of a very small resistance which pulls down the out put voltage. use 10k resistor and 100μF filter capacitor.
3 or your function generators out put impedence must be very high. in this case try some other fucntion generator
luv
bipin
India
 
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