During first half cycle of input a.c., one diode will act as forward biased and conduct, while other diode which is reverse biased will not conduct. In other half cycle of input signal, the reverse biased diode will get forward biased and hence will conduct while other diode gets reverse biased and will not conduct. In such case, we will achieve unidirectional output voltage for positive and negative half cycle.
(ii) Identification : AND Gate
Truth Table
Input |
|
Output |
A |
B |
Y |
0 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
1 |
1 |
1 |