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Transcript
ETEE3211 Fall 2004 Test #2 Name:__________________ Show all work. Clearly indicate final answer(s). 1. Determine the voltage at points VC, VE, and VCE in the circuit shown to the right when VBE=0.7V and β=100. Hint: Do not assume IB=0. 2. Find VCC, RB, and RE in the circuit shown to the left using the dc load line given. Assume α≈1. 3. For the circuit shown to the right: a. Find the values of R1 and R2 needed to achieve the maximum possible output voltage swing. b. Draw the ac and dc load lines. c. Determine the maximum symmetrical output swing. - 4. Analyze the circuit shown to the left to determine VBB, RB, ICQ, and VCEQ. Assume VBE= -0.7V and β=200. Extra Credit: (25 pts maximum) Analyze the circuit to the right and determine the following when β=200 and VBE=0.7V: a. ICQ and VCEQ. b. Undistorted symmetrical voltage output swing. c. Power supplied from the battery. d. ac power output. e. Power rating of the transistor needed.
