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22-Elec-A5 Electronics: May 2018

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Current and voltage across the bridge resistor R₅
  2. Question 2 Instrumentation amplifier — transfer function and output waveform
  3. Question 3 Common-emitter (PNP) amplifier design
  4. Question 4 Currents in the ideal-diode ladder
  5. Question 5 Common-source MOSFET amplifier — bias design and gain

Start with Question 1 →

Closed-book national examination, 3 hours, five questions each worth 20 marks (answer all five). Op-amps ideal, supplies ±15 V unless stated.

Reference texts. A. S. Sedra & K. C. Smith, Microelectronic Circuits, 8th ed. (diodes Ch. 4; MOSFET amplifiers Ch. 5–7; BJT amplifiers Ch. 6–7; op-amps & instrumentation amplifier Ch. 2). C. K. Alexander & M. Sadiku, Fundamentals of Electric Circuits, 7th ed. (nodal analysis, bridge networks Ch. 3).