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
Intrinsic and Extrinsic Semiconductors
● Test 1 - Monday, Oct. 4, Chapters 1-5.  Comments

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 k
W, not 157 kW
Mon., Sep. 20
Chapter 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. 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 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. 29
 

List of Experiments

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

Last update:  Sep. 29, 2004