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Download ETEE3211 Fall 2006 Test #3
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ETEE3211 Fall 2006 Test #3 Name:__________________ Show all work. Clearly indicate final answer(s). Cheatsheet must be turned in with test or a zero will be given for the entire test! 1. (35 points) Analyze the circuit shown to the right and determine the following: a. ICQ and VCEQ b. Maximum undistorted output voltage swing c. Power supplied from power supply d. Voltage gain e. Load lines (sketch) 2. (35 pts) Determine overall Av, Ai and Ap for the two-stage amplifier shown to the right, given VBE1=VBE2=VBE=0.7V and β1=β2=β=100. 3. (30 pts) Analyze the circuit shown to the right and determine the following when R1=R2=10kΩ, RE=600Ω, RL=300Ω, VCC=VEE=10V, β=300 and VBE=0.6V. a. ICQ and VCEQ b. Maximum undistorted symmetrical output voltage swing c. dc power needed d. Maximum power output (ac undistorted) Extra Credit (30 points maximum): Determine the variation of IC for a CE amplifier which is designed using the following criteria: AV = -10V/V, RL = 4kΩ, Rin=5kΩ, VCC = 10V and VBE = 0.7V and ICBO = 0.001µA at 25oC. The temperature varies between +25oC and +85oC and β varies between 100 and 300. Assume all capacitors infinite and ideal. P1: P2: P3: Extra Credit: