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17-Comp-A1: Undated paper

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

  1. Question 1 Current-Source-Driven Full-Wave Bridge Rectifier
  2. Question 2 Fixed-Bias BJT Amplifier — Design and the $R_b=0$ Failure Case
  3. Question 3 Inverting Op-Amp with Zener-Diode Output Limiter
  4. Question 4 Common-Source MOSFET Amplifier — Max-Swing Design
  5. Question 5 DC Restorer (Clamper) Driving a Voltage Follower — Steady State at $v_{in}=0$
  6. Question 6 CMOS AND-OR-INVERT (AOI21) Gate — Sizing and Propagation Delay
  7. Question 7 6-Bit R-2R Ladder DAC

Start with Question 1 →

17-Comp-A1, Electronics — National Exams, undated sitting (page 1 of the paper reads "May 2018" while every question page reads "May 2019", so the exam period is uncertain). Open-book, 3 hours; the paper's own instructions read "FIVE (5) questions constitute a complete exam paper" while seven distinct 20-mark questions are printed — all seven are answered below as a complete study resource. Where a diode is used without a stated drop, $V_D=0.7\text{V}$.

Reference texts: Sedra & Smith, Microelectronic Circuits (diode rectifiers/limiters, BJT and MOSFET biasing and small-signal amplifiers, op-amp limiting circuits, CMOS logic gate sizing, R-2R ladder D/A converters) — the single reference text covering every question on this paper.