CHALLENGE OF THE WEEK - 5

Date : 28/10/2013

1.  Identify the digital circuit and write its truth table.

Note: Here V1 and V2 are the input signals and O1 and O2 are the output signals. Assume Vs = 5V.

2. The question given below is optional. It carries bonus point of  +1.

Draw the output waveform v_o for the circuit shown below with the given input. (Assume β = 100)

Hint: The base current will flow only when base-emitter junction of BJT is forward biased and Zener diode is reversed biased.

Last date for submission:  9/11/13

No winners for COTW - 4