PH 308 - Electronic Circuits - Fall 2004
Course description:
Semiconductor electronic circuits employing linear
devices in amplifiers and nonlinear devices in digital logic circuits.
Course syllabus - Word document.
Textbook: "Basic
Electronics for Scientists and Engineers" by James Brophy, 5th Edition
(1990).
Instructor: Dr. David
Renneke, Science 205, 794-3403, phrenneke@augustana.edu
● Kirchhoff's Rules - solutions using
TrueBASIC, a
spreadsheet, and a
TI-83 calculator |
Homework Assignment |
Due by 5:00 pm on |
A1 (handout) - Electronics Workbench | Mon., Sep. 13 |
Chapter 1: 4, 5, 9, 10, A2 (handout) | Wed., Sep. 15 |
Chapter 2: 1, 2, 5 Answer for 2.2 (d) is 15.7 kW, not 157 kW |
Mon., Sep. 20 |
Chapter 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. 24 |
Chapter 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 V_{p} to 2V_{p}. Adapt Eq. 3-5 accordingly. That is, get V_{dc} from your graph, the first V_{p} becomes 2V_{p}, and the second V_{p} 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), I_{z} (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 I_{z} = 0, this corresponds to R_{L} being a minimum. For the second part of the problem, note that V_{L} = V_{z} = 100 V (the Zener diode is regulating). So you can calculate I_{L}. You now have enough information to determine V_{s} for the two conditions of the diode: I_{z} = 0 and I_{z} = 100 mA. |
Wed., Sep. 29 |
Last update: Sep. 29, 2004