While digital circuits have dominated large-scale integrated circuits, cutting-edge analog circuit technology is indispensable for high-speed wireless communication system, signal processing, etc. In this course, the fundamental characteristics of transistors (bipolar and field effect transistors), which are required for design of analog circuits, are first explained. Then, the small-signal equivalent circuit models of transistors are studied. The amplification mechanism and frequency characteristics of amplifier circuits using transistors in various configurations are examined. Variation in transistor characteristics, noise sources in circuits, and nonlinear behaviors are also introduced. The principles and design methods for various transistor circuits such as the current mirror, differential amplifier, negative feedback, operational amplifier, and oscillators are studied.
The course objectives are as follows: understanding the basic characteristics of transistors (bipolar transistor and field effect transistor), learning the equivalent circuits of transistors, understanding the amplification mechanism and frequency characteristics of transistor amplifier circuits, and learning the principle and design methods of various transistor circuits.
1. Derive the small-signal equivalent circuit model of transistors (bipolar and field effect transistors) from their fundamental characteristics.
2. Calculate the gain of transistor amplifier circuits and design simple amplifier circuits. Analyze their frequency characteristics.
3. Understand variation in transistor characteristics, noise sources in circuits, and nonlinear behaviors.
4. Analyze various transistor circuits such as the current mirror, differential amplifier, negative feedback, operational amplifier, and oscillators.
analog electronic circuit, transistor, amplifier circuit, noise, nonlinear, current mirror, differential amplifier, negative feedback, operational amplifier, oscillator.
|✔ Specialist skills||Intercultural skills||Communication skills||Critical thinking skills||✔ Practical and/or problem-solving skills|
At the beginning of each class, solutions to exercise problems that were assigned during the previous class are reviewed. Students then learn the analog circuits during the lecture. Toward the end of class, students will be given new exercise problems related to the lecture given that day to solve. Students should review previous classes and prepare for the next class in advance.
|Course schedule||Required learning|
|Class 1||Fundamental characteristics of the bipolar and field effect transistors||Derivation and illustration of the current-voltage characteristics of transistors.|
|Class 2||Basic amplifier circuits and biasing methods of transistors||Solve exercise problems of bias circuits.|
|Class 3||Small-signal equivalent circuits||Calculate the gain of basic amplifier circuits.|
|Class 4||Basic transistor amplifier circuits 1||Calculate the amplifier gain and input/output impedance.|
|Class 5||Basic transistor amplifier circuits 2||Compute the amplifier gains of various amplifier circuits.|
|Class 6||Frequency characteristics 1||Illustration of Bode plot 1.|
|Class 7||Frequency characteristics 2 and variation in transistor characteristics||Illustration of Bode plot 2.|
|Class 8||Summary of the first part of the course. Test the level of understanding with exercise problems.||Test the level of understanding and self-evaluate achievements for classes 1-7.|
|Class 9||Noises in circuit and nonlinear behavior||Compute thermal and shot noises. Analyze the characteristics of amplifier circuits with nonlinear behaviors.|
|Class 10||Current mirror circuits||Solve exercise problems of current mirror circuits.|
|Class 11||Differential amplifier circuits||Solve exercise problems of differential amplifier circuits.|
|Class 12||Negative feedback amplifier||Calculate the loop gain and evaluate stability in negative feedback amplifiers.|
|Class 13||Operational amplifier circuits 1||Compute the gain of operational amplifier circuits.|
|Class 14||Operational amplifier circuits 2||Analyze the frequency characteristics of operational amplifier circuits.|
|Class 15||Oscillator circuits||Solve exercise problems of oscillation circuits.|
Matsuzawa, Akira. A 1st course in analog electronic circuit. Kodansha. ISBN:978-4-06-156535-7. (In Japanese)
Course materials is uploaded through OCW/OCWi system.
Students' knowledge of transistor analog circuits and the ability to apply them to solving problems will be assessed. Midterm and final exams 80%, exercise problems 20%.
Students must have successfully completed both Electric Circuits I (EEE.C201.R) and Electric Circuits II (EEE.C202.R) or have equivalent knowledge.
Safumi Suzuki: suzuki.s.av[at]m.titech.ac.jp, 03-5734-3039
Pham Nam Hai: pham.n.ab[at]m.titech.ac.jp, 03-5734-3934
Contact by e-mail for for an appointment.