Question
- Draw the circuit diagram of a fullwave rectifier using p-n junction diode. Explain its working and show the output, input waveforms.
- Show the output waveforms (Y) for the following inputs A and B of
- OR gate.
- NAND gate.
✓
Answer
Duringfirsthalf cycle:
A is positive w.r.t centre tap but B is negative, hence only diode $D_1$ conducts and current flows through the load in the sense X to Y.
During the second half cycle:
B is positive w.r.t centre tap but A is negative hence only diode $D_2 $ conducts and again send currents through load from X and Y.
$\therefore$ Current through the load, in both the halves of input, is unidirectional.
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