ECE 2212

PROBLEM SET 2

(Problem 4 Figure Updated)

S. G. Burns

Due: 5 February 2014

Wednesday

1. A bit more review from EE 2006.

Obtain a value for the Thevanin voltage (V_TH) and Thevanin resistance (R_TH) for the following circuit. Note that only dc independent sources are being used. Assume an ideal capacitor and inductor. Sketch and label the resultant Thevanin and Norton equivalent circuits.

So far we have worked with independent sources. The next two problems address dependent sources. These two problems include independent voltage and current sources , and dependent current generators. Before you substitute to obtain numerical values, derive an expression for the Thevanin equivalent circuits at the indicated nodes.

2. Text Problem 1.25

3. Text Problem 1.26.

We will start discussing operational amplifiers on Monday and build on the operational amplifier topics you covered in EE 2006. Unless otherwise stated, assume all operational amplifiers are ideal. Therefore you can use the summing point constraints.

4. Text 1.37 Straightforward summing amplifier “plug and chug”.

5. Figures P12.3, P12.9, 12.14, and P12.17 (pages 774 and 775) are cascaded operational amplifier circuits. Compute the voltage gain, = v_O/v_I for each circuit. When you use summing point constraints and the circuit topologies we have discussed in class, the voltage gain computation for each circuit can be done in ONE line!

These cartoons obtained from a friend raiding a secret stash at a well known laboratory instrument company.

And more from my files of good stuff:

General wisdom of the ages because if I am not a fan of the continual requests to update something or other in Windows