PH 308 - Electronic Circuits - Fall 2002
Course description: Semiconductor electronic circuits employing linear devices in amplifiers and nonlinear devices in digital logic circuits.
Textbook: "Basic Electronics for Scientists and Engineers" by James Brophy, 5th Edition (1990).
Instructor: Dr. David Renneke, Science 205, 794-3403, phrenneke@augustana.edu
Homework Assignment |
Due by 5:00 pm on |
A1 (handout) - Electronics Workbench | Mon., Sep. 9 |
Chpt. 1: 4, 5, 9, 10, A2 (handout) | Wed., Sep. 11 |
Chpt. 2: 1, 2, 5 Answer for 2.2 (d) is 15.7 kW |
Mon., Sep. 16 |
Chpt. 5: 2, 4, 9 Answer for 5.4: 10.2 - j (1.59 x 10^{5}) ohms; 4.77 x 10^{4} + j (8.16 x 10^{4}) ohms Hint for 5.9: j = e ^{j }^{p}^{/2} The order for the answers is I_{R}, I_{L} and I_{C}. |
Fri., Sep. 20 |
Chpt. 3: 3, 7, 8 Here are a few hints: 3-3. You may omit the words "minimum" and "less than". The answer is the same. The graph in Fig. 3-12 applies to the circuit of Fig. 3-11. To adapt it to the circuit of Fig. 3-10, change Vp to 2Vp. Adapt Eq. 3-5 accordingly. That is, get Vdc from your graph, the first Vp becomes 2Vp, and the second Vp stays the same because that's the voltage across each capacitor and they discharge independently. 3-7. Using Eq. 3-7 I got an answer of 0.101 instead of 0.104. The second number can be obtained if you omit the "1" in the denominator. Use f = 120 Hz (ripple frequency). 3-8. In Fig. 3-17, label the currents Is (source), Iz (through the Zener diode), and I_{L} (through the load resistor). Use Kirchhoff's first and second rules. Also, write out Ohm's law across R_{L}. From these solve for R_{L}. When Iz = 0, this corresponds to R_{L} being a minimum. For the second part of the problem, note that V_{L} = Vz = 100 V (the Zener diode is regulating). So you can calculate I_{L}. You now have enough information to determine Vs for the two conditions of the diode: Iz = 0 and Iz = 100 mA. |
Wed., Sep. 25 |
Chpt. 6: 4, 5, Problem A3 (handout) Answers to 4: I_{b} = 4 mA, I_{c} = 0.95 mA |
Wed., Oct. 16 |
Problems A4 (non-inverting amplifier), A5 (your choice), A6 (wafer maker) and A7 (periodic puzzle). These are explained in the handout. | Wed., Oct. 23 |
Problems A8-A11. For these you will be using the digital part of Electronics Workbench. | Wed., Nov. 6 |
Last update: Nov. 8, 2002