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 k
W
Mon., Sep. 16
Chpt. 5: 2, 4, 9
Answer for 5.4:  10.2 - j (1.59 x 105) ohms; 4.77 x 104 + j (8.16 x 104) ohms
Hint for 5.9: 
j = e j p/2 
    The order for the answers is IR, IL and IC.
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 IL (through the load resistor). Use Kirchhoff's first and second rules. Also, write out Ohm's law across RL. From these solve for RL. When Iz = 0, this corresponds to RL being a minimum. For the second part of the problem, note that VL = Vz = 100 V (the Zener diode is regulating). So you can calculate IL. 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: Ib = 4
mA, Ic = 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
 

List of Experiments

  1  DC Circuit Measurements
2 AC Circuit Measurements
3 Diode Circuits
4 Transistors
5 Operational Amplifiers
6 555 Timer Applications
7 Digital Logic:  Binary Numbers & Logic Gates
8 Digital Logic:  Arithmetic Operations
9 Digital Logic:  Information Registers

Last update:  Nov. 8, 2002