Fall04_hw10

# Fall04_hw10 - find v out when a V1=1V and V2=0 b V1=1V and...

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ENEE 204 Fall 2004 HW #10 Due: In class on Tuesday, Nov. 16, 2004 Problem 1: Mesh Analysis with dependent source Find the voltage v (across terminal A and B) for the circuit below. Note that the dependent source is a current controlled voltage source. Problem 2: Nodal Analysis with 2 dependent sources Find the voltage v (across terminal A and B) for the circuit below. Problem 3: Rederiving the gain of the BJT Common Emitter Amplifier. The circuit below is the same as the one discussed in class. Now, using Nodal Analysis, show that the gain = v out /v in = -R E /R C in the limit that b is very large. Hint: Set node 4 to be the ground node. Use Math symbolic variables to solve the matrix. Problem 4. In the op-amp circuit below, ignore the other pins except (2,3 and 6). Assume that

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the op-amp is ideal, pay no attention to the IC-label. Use the principle of virtual short to
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Unformatted text preview: find v out when a. V1=1V and V2=0 b. V1=1V and V3=2 I want you to solve the circuits, rather than substitute formulas. Problem 5. As before, ignore extra pins. Using principle of virtual short, show that a. ( 29 [ ] 1 1 2 1 / v R R R v out + = , ∞ = in z and 2 R z out = b. In the limit of , 2 1 = → ∞ → R R what is the gain and what do we gain out of this circuit? Problem 6. a. Ignore all pins except (2,3,6). Show that the gain of the amplifier is + = 1 2 1 R R v v in out , where vin is the input to the + terminal of the op-amp (pin 3). b. If R1=4.5k, R2=63k, Rs=15k, and Vs=400 mV, how large should R6 be before the output saturates. The output is said to saturate if it is higher or lower than the voltage of the op-amp power supply, applied to pins 4 (negative terminal) and pin 7 (positive terminal)....
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## This homework help was uploaded on 04/07/2008 for the course ENEE 204 taught by Professor Gomez during the Fall '04 term at Maryland.

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Fall04_hw10 - find v out when a V1=1V and V2=0 b V1=1V and...

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