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.
- $\ce{NAND}$ gate.
✓
Answer
Duringfirsthalf cycle:
A is positive $\ce{w.r.t}$ 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 $\ce{w.r.t}$ 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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