1. Instructions

2. Problems

2.1. AC equivalent impedance C

Generate and solve an autoCircuit with the following settings which involves a capacitor:

  • Chapters → AC Equiv Impedance

  • Numeric

  • Real

  • Basic

  • Yes

  • Yes

2.2. AC equivalent impedance L

Generate and solve another autoCircuit with the same settings but which involves an inductor:

2.3. AC circuit C

Generate and solve an autoCircuit with the following settings which involves a capacitor.

  • Chapters → AC Circuits

  • Numeric

  • Real

  • Basic

  • Yes

  • Yes

2.4. AC circuit L

Generate and solve another autoCircuit with the same settings but which involves an inductor.

2.5. DC circuit analysis

r2r divider

Find the node voltages VA, VB, VC, VD.[1]

2.6. Superposition analysis

r2r dac

Find the voltage at node X, VX, using superposition. This will be a function of the four voltage sources V0…​3.

2.7. Op amp review

Recall the ideal operational amplifier. Circuit analysis for the ideal version has the following rules:

  1. The current into the \(+\) and \(-\) pins is zero.

  2. The internal amplifier circuitry will source or sink current from the out pin (or change vout) to force v− to equal v+.

opamp noninv 1

Use circuit analysis and the above rules to find the transfer function of this op amp circuit:

\[H(s) = \dfrac{v_{out}(s)}{v_{in}(s)}\]

Verify that the (magnitude of the) frequency response of this transfer function (s → jω):

  • is 1 at f=0, and

  • approaches \(1 + \frac{R_2}{R_1}\) as f→∞

Do you notice the voltage-divider equation associated with the \(-\) and out nodes?

3. Submission

Turn in your work for each problem as a PDF to Blackboard. A good strategy is to do one problem per half+ page on (engineering) paper, scan / crop / enhance to multi-page PDF. Or another method you consider reasonable to both create and read.

1. Look for patterns!