The GATE Grind

GATE Analog and Digital Electronics: Simple diode circuits: clipping, clamping, rectifiers – Previous Year Questions

11 GATE previous year questions on Simple diode circuits: clipping, clamping, rectifiers (Analog and Digital Electronics, Electrical Engineering) with answers and explanations, from every paper.

  1. GATE 2017 EE Q24 (1 mark, Multiple choice) – For the circuit shown in the figure below, assume that diodes D 1, D 2 and D 3 are ideal. [Figure: A source v(t) = (100 t) V in series with a resistor…
  2. GATE 2020 EE Q40 (2 marks, Multiple choice) – Consider the diode circuit shown below. The diode, D, obeys the current-voltage characteristic I D=I s((V DnV T)-1), where n>1, V T>0, V D is the…
  3. GATE 2020 EE Q41 (2 marks, Multiple choice) – A non-ideal diode is biased with a voltage of -0.03 V, and a diode current of I 1 is measured. The thermal voltage is 26 mV and the ideality factor…
  4. GATE 2020 EE Q62 (2 marks, Numerical answer) – A non-ideal Si-based pn junction diode is tested by sweeping the bias applied across its terminals from -5 V to +5 V. The effective thermal voltage, V…
  5. GATE 2021 EE Q34 (1 mark, Numerical answer) – In the circuit shown, the input V i is a sinusoidal AC voltage having an RMS value of 230 V20\%. The worst-case peak-inverse voltage seen across any…
  6. GATE 2021 EE Q35 (1 mark, Numerical answer) – In the circuit shown, a 5 V Zener diode is used to regulate the voltage across load R 0. The input is an unregulated DC voltage with a minimum value…
  7. GATE 2021 EE Q61 (2 marks, Numerical answer) – A 100 Hz square wave, switching between 0 V and 5 V, is applied to a CR high-pass filter circuit as shown. The output voltage waveform across the…
  8. GATE 2022 EE Q25 (1 mark, Multiple choice) – For the circuit shown below with ideal diodes, the output will be
  9. GATE 2024 EE Q60 (2 marks, Numerical answer) – In the given circuit, the diodes are ideal. The current I through the diode D1 in milliamperes is (rounded off to two decimal places).
  10. GATE 2025 EE Q39 (2 marks, Multiple choice) – In the circuit shown below, if the values of R and C are very large, the form of the output voltage for a very high frequency square wave input, is…
  11. GATE 2026 EE Q33 (1 mark, Numerical answer) – In the linear regulator circuit shown, the base to emitter voltage V BE of the BJT is 0.6 V. The Zener diode clamps the base voltage to 5.4 V. Ignore…