ECE446 Microelectronics Assignment 2

1. For the diode circuit below, assume R_L = 100 ohm, V_S = 8 V, and the diode is 1N4148. Find the current I_D using LTSpice.

   

2. For the circuit, above, let the voltage source be a 16 V peak-to-peak sine wave with a frequency of 400 Hz. Plot the rectified voltage V_L as a function of time for several cycles, using LTSpice.

3. A simple diode test circuit was simulated in class. Repeat the simulation using IS=1E-16, TT=25e-9, and VJ=0.75 in the diode model parameters. Find the forward and reverse bias current and the diode storage time. Download a starting version of mylib.lib.

Maintained by John Loomis, last updated 3 September 2008