The electric circuits I II are the important courses in electrical and electronic engineering, as well as electricity and magnetism. Electric circuits II focuses operating principles and design of electric circuits in several application areas in electrical and electronic engineering, based on the acquired knowledge in the course of electrical circuits I. Filter is the electric circuit to realize the specific frequency characteristics by designing pole and zero locations. Realization of required frequency characteristics by designing pole and zero locations, the filter circuits by LC ladder, and the filter circuits by operating amplifiers and integrators are discussed. Basic equations of transmission lines and their transient response, the frequency characteristics, and the reflection and transmission are discussed. In addition, three phase AC circuits and basic switching power supply are discussed for the basis of power electronics.
This course aims the understanding of important electrical circuits in the important application areas and to obtain the basic design ability for these electrical circuits.
At the end of this course, students will be able to acquire the following ability.
1) Can explain the basic structures and basic principles of analog filters, in addition, can design them.
2) Can explain the basic equations of transmission lines and their transient response, the frequency characteristics, and the reflection and transmission.
3) Can explain the three phase AC circuits.
4) Can explain the basic structures and basic principles of switching power supplies and can design them.
Filter, Butterworth filter, two-port parameter, operational amplifier, integrator, LC ladder circuits, continued fraction, impedance scaling, frequency scaling, transmission line, the distributed circuits, reflection and transmission, three phase AC circuits, and switching power supply.
|Intercultural skills||Communication skills||Specialist skills||Critical thinking skills||Practical and/or problem-solving skills|
Students must read the appointed part of the lecture note uploaded in OCW-i, before coming to the class. Students must make the report to the tasks shown in previous class and submit it at the class. Simulators will be used in the class or for the home works. MATLAB and LT spice should be installed in student’s PCs.
|Course schedule||Required learning|
|Class 1||Operational amplifiers||Can explain basic structures and operation principles of the operational amplifiers.|
|Class 2||Two-port parameters||Can explain the two-port parameters and use them.|
|Class 3||Fundamentals of filters||Can explain the role and basic characteristics of filters.|
|Class 4||LC ladder filters||Can explain the LC ladder filters and design it by using continued fraction. Can use impedance scaling, frequency scaling, and transform to the bandpass filters.|
|Class 5||Filters using integrators||Can design the filters using integrators.|
|Class 6||Summary and confirmation of study until then||Summarize and check the study until then.|
|Class 7||Transmission lines and basic equations||Can describe the basic equations for the transmission lines and solve them.|
|Class 8||Transient response of the transmission lines||Can explain the transient response of the transmission lines and use it.|
|Class 9||Frequency characteristics of the transmission lines||Can explain the frequency characteristics the transmission lines and use it.|
|Class 10||Reflection and transmission of the transmission lines||Can explain the reflection and the transmission of the transmission lines and use it.|
|Class 11||Summary and confirmation of study until then||Summarize and check the study until then.|
|Class 12||Three phase AC circuits||Can explain three phase AC circuits and Y-Delta conversion.|
|Class 13||Three phase AC circuits||Can explain the balanced three phase AC circuits and measurement of power.|
|Class 14||Switching power supply||Can explain the principle of switching power supply using inductors.|
|Class 15||Switching power supply and summary of study until then||Can design the basic switching power supply.|
The textbook is provided by PDF file on OCW-i.
Course materials can be found on OCW-i.
Students’ course scores are conducted based on the due reports (30%), checks of understanding, and final examination (70%).
Contact by e-mail in advance to schedule an appointment and come to the professor’s office (S3-312).