Question

ine Lab Attendance Tests/ Analog Electronics Experiment 1-preparato y quiz If you apply a sine wave (13 Vpp) to the input to a full wave bridge rectifier, what is the expected output Voltage (peak-peak)? et red ed out of Answer: Vpp lag tion estion 2 ASV DC inpurtis applied over a Si-diode Wnat will he outpu

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Answer 1

The applied input signal voltage v_p-p = 13v v_m = v_p-p/2 = 13/2 = 7.5v let us consider the bridge full wave rectifier circuit and corresponding input and output wave forms bridge rectifier: in the circuit for positive half cycl of input ie from 0 to T/2 diodes D_2 & D_3 are forward biased and act as closed switch and D_1, D_4 are reverse biased act as open circuits similarly for negative half cycle D_1&D_4 are ON D_2, D_3 are off . so from this we can write the output voltage as v_0 = v_m - 2v_k here v_k = diodes cut in voltage = 0.7v v_0 = 7.5 - 2(0.7) = 6.1v