Full wave rectification?

Question

Four diode full wave rectification
Vin=110*(square root of 2)*sinwt
How much is Vout

Answer 1

First, full wave rectification can use either two or four diodes; but, two diodes are used with transformers that have a center tap (CT); while four diodes (typically an encapsulated bridge device) are used for transformers that DO NOT have a center tap.



vin = 110√2 sin(wt)

The average value of vo, is found by integrating the waveform over half cycle between the limits on 0 and π

vo(ave) = (2√2 110)/π

vo(ave)= 110√2 x 2/π

vo(ave)= 0.636 x 110√2 Volts

vo(ave) = 98.9 V.

Answer 2

properly, image a sine wave, ac voltage. The a million/2-cycles start up from 0, attain a optimal advantageous fee, come right down to 0, attain a optimal destructive fee, then returns to 0 and initiate up yet returned. an uncomplicated diode grants a million/2-wave rectification. we could assume that the diode is linked so as that this is forward biased whilst the advantageous a million/2-cycle of the voltage sine wave passes by way of it. however the destructive a million/2-cycles opposite bias the diode so as that element of the voltage waveform can not pass by way of. in case you look on the voltage waveform on an oscilloscope, you will see the advantageous a million/2-cycles in simple terms. the place the destructive a million/2-cycle could, there is in simple terms a at as quickly as line. this would properly be a million/2-wave rectification. you may positioned 4 diodes jointly contained in this sort of a bridge circuit. in this association, 2 out of the 4 are consistently forward biased. What meaning is that, in case you look on the voltage wave-form on the oscilloscope returned, you will see the advantageous a million/2 cycles yet the place the destructive a million/2-cycles could be, you will see yet another advantageous a million/2 cycle. so which you spot a string of advantageous a million/2-cycles, one after yet another. There are a pair of advantageous a million/2-cycles for each voltage sine wave. it quite is named complete-wave rectification.

Answer 3

Its not necessary to use four diode because 2 diodes can rectify ac in to pure dc