ECE323 Basic Electronic Circuits Assignment 11

1. Given the following circuit of an external resistor R_S = 200 W and a diode with turn-on voltage V_T = 0.7 V and internal resistance R_D = 1 W, find the voltage V_D and current i_D for a source voltage V_S = 12 V.

   

2. Given the following circuit, in which R₁ = R₂ = R₃ = 100 W, a diode with turn-on voltage V_T = 0.7 V, and source voltage V_S = 5 V. Find i_D.

   

   Hint: Consider the Thévenin equivalent circuit.

3. Given the following full-wave bridge rectifier with a 20 V rms 60-Hz source, 1 kW, and 100 mF capacitor. Assume a voltage drop of 0.7 V across each forward-biased diode. Find the average DC output voltage and the peak-to-peak ripple voltage.

   

Maintained by John Loomis, last updated 16 November 2007