ECE 110/Fall 2016/Test 2

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This page contains the list of topics for ECE 110 Test 2. Post questions or requests for clarification to the discussion page.

Test II Fall 2016 Coverage

While the test is necessarily cumulative, the focus will be on the topics below.

  1. Superposition
    1. Be able to efficiently solve circuit problems by using superposition.
    2. In life, remember that dependent sources must be included in the different subdivisions of a superposition problem regardless of the independent source or sources you leave on. On the test however, the superposition problem -- if there is one -- will not have a dependent source.
    3. Note that power can only be calculated once the superposition process is over and the total voltages or currents have been found.
  2. Thévenin and Norton Equivalent Circuits
    1. Be able to solve for the source and resistance of a Thévenin or Norton Equivalent Circuit for a circuit comprised of independent and dependent sources and resistors.
    2. Be able to draw both Thévenin and Norton Equivalent Circuits.
    3. Be able to use Thévenin and Norton Equivalent Circuits to determine the maximum power delivered to a load and the required resistance of that load to receive the maximum power.
  3. Reactive elements (Capacitors and Inductors)
    1. Know main model equation relating voltage and current and what it means for the voltage across a capacitor or the current through an inductor
    2. Know the equation for energy stored in a capacitor or an inductor. Note that if you use superposition to find the capacitor voltage or inductor current, you must wait until the end of the superposition process, when you have the total voltage or current, to find the energy stored.
    3. Be able to represent a circuit with reactive elements in the DC Steady State
    4. Be able to determine a model equation for circuits comprised of R, C, and sources or R, L, and sources
  4. DC Switched circuits / constant source circuits
    1. Determine initial conditions given constant forcing functions
    2. Set up and solve a first-order differential equation with initial conditions and constant forcing functions
    3. Accurately sketch solution to switched circuit / constant source circuit
  5. Complex numbers and sinusoids
  6. Impedance \(\Bbb{Z}=R+jX\), Admittance \(\Bbb{Y}=G+jB\), Resistance \(R\), Reactance \(X\), Conductance \(G\), Susceptance \(B\)
  7. AC Steady State / Phasor Analysis
    1. Draw circuit in frequency domain
    2. Determine series of equations using NVM, MCM, and/or BCM to solve relationships in frequency domain
    3. For "simple" circuits, be able to determine output phasors numerically and translate into time domain
    4. Note that you can solve ACSS problems with sources of different frequencies, but you can only solve for one frequency at a time - do not mix phasors that represent signals at different frequencies!
  8. Transfer Functions
    1. Be able to find transfer functions between outputs and inputs in the frequency domain.
    2. Use the derivative property to get differential equations from transfer functions or transfer functions from differential equations
  9. Filters
    1. Be able to determine a filter type based on magnitude information (for example, from a Bode plot)
    2. Be able to design 1-st order low-pass and high-pass filters with maximum gains of 1 using an RC or RL circuit
  10. Bode plots
    1. Be able to sketch an accurate straight-line approximation of the Bode magnitude and phase plots for transfer functions not involving underdamped roots
    2. Be able to determine transfer functions given a straight-line approximation to the Bode magnitude plot assuming no underdamped roots

Specifically Not On The Test

  1. Maple
  2. MATLAB
  3. Delta-Wye Transformations