ECE323 Basic Electronic Circuits Assignment 12

1. For the circuit shown below, answer the questions below. Assume that R_C = 1 kW, R_B = 10 kW, V_CC = 12 V, V_CE = 0.3 V at saturation, V_BE = 0.7 V, and b = 50.

   

   1. Find i_C if V_BB = 0.5 V.
   2. Find i_C if V_BB = 2.0 V.
   3. Find i_C if V_BB = 3.5 V.
   4. Find V_BB required to saturate the transistor.

2. Given the following circuit, with R₁ = 200 kW, R₂ = 50 kW, R_C = 4 kW, and R_E = 1 kW. Assume V_CC = 15 V, V_BE = 0.7 V and the transistor b = 200. Find V_C, i_C, V_o, V_BB, and i_B.

   

3. Given the following circuit, in which R_C = 3 kW, b = 80, V_BE = 0.7 V, V_CE = 8 V, and V_CC = 15 V. Find i_C and the value of R_B.

   

Maintained by John Loomis, last updated 18 November 2007