The GATE Grind

GATE 2014 EE (EE2) – Question 39

Analog and Digital Electronics · Simple diode circuits: clipping, clamping, rectifiers · 2 marks · Multiple choice

For ideal diodes in the circuit shown, output clips when input v_i is outside which range?

Diagram for GATE 2014 EE (EE2) question 39
  1. −1 V to −2 V
  2. −2 V to −4 V
  3. +1 V to −2 V
  4. +2 V to −4 V

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (B) −2 V to −4 V

Explanation

With both ideal diodes off,the equal10kΩresistors divide the input by two,vo=vi/2. The drawn battery polarities clamp output at−1Vand−2V. Mapping these output thresholds back through the divider gives input boundaries−2Vand−4V. Thus clipping occurs outside **−4V≤vi≤−2V,B**,with no clipping in the interval.