2023 Electric Circuits I

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Academic unit or major
Undergraduate major in Electrical and Electronic Engineering
Pham Nam Hai  Tokuda Takashi 
Class Format
Lecture    (Face-to-face)
Media-enhanced courses
Day/Period(Room No.)
Mon5-6(S2-204(S221))  Thr5-6(S2-204(S221))  
Course number
Academic year
Offered quarter
Syllabus updated
Lecture notes updated
Language used
Access Index

Course description and aims

The electric circuits I II are the important courses in electrical and electronic engineering, as well as electricity and magnetism. Electric circuits I focuses the fundamentals of circuit analysis based on Kirchhoff's laws and discusses electrical responses of electric circuit, e.g. attenuation, oscillation, and resonance. The course shows the systematic description of electrical circuits by using Laplace’s transform can draw the transient response and frequency characteristic easily. Also, the usefulness of complex expression and vector expression in AC circuits is discussed.
This course aims to provide basic knowledge of electric circuits; the fundamental natures of electrical elements, the fundamentals of circuit analysis based on Kirchhoff's laws and Laplace transform, the fundamental expression method, using complex expression, vector expression, and to solve the basic equations for the electric circuits.

Student learning outcomes

At the end of this course, students will be able to acquire the following ability.
1) Can make basic circuit’s equations.
2) Can explain the nature of electrical elements.
3) Can use of Laplace’s transform and solve the circuit’s equations using it.
4) Can obtain the transient response of electrical circuits.
5) Can express and solve the AC circuits by using the complex expression and the vector expression.


Ohm’s law, theory of superposition, Thevenin's theorem, Kirchhoff's laws, resistance, capacitance, inductance, charge reservation, interlinkage magnetic flux reservation, network equation, Laplace’s transform, inverse Laplace’s transform, transient response, AC circuits, complex number, vector expression, Euler’s formula, impedance, admittance, resonant circuit, transformer

Competencies that will be developed

Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills
・Fundamental specialist skills on EEE

Class flow

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

  Course schedule Required learning
Class 1 Introduction Can explain how electric circuits are used.
Class 2 DC circuits -- Kirchhoff's laws -- Can explain the Ohm’s law and the Kirchhoff's laws.
Class 3 DC circuits -- DC circuit networks -- Can explain the theory of superposition and Thevenin's theorem. In addition, can solve the DC circuit networks by using the circuit’s laws.
Class 4 Capacitor and inductor Can explain the electric characteristics and can solve the circuits containing resistors and inductors, by using charge reservation and interlinkage magnetic flux reservation law.
Class 5 Fundamental responses of electrical elements Can explain the fundamental responses of electrical elements; resistors, capacitors, and inductors and complex expression and Euler’s formula.
Class 6 Laplace’s transform Can explain Laplace’s transform and Inverse Laplace’s transform and describe the s-domain description of electrical elements.
Class 7 Transient response -- 1st order circuits -- Can solve the transient response of the 1st order circuits by using Laplace’s transform.
Class 8 Transient response -- 2nd order circuits -- Can solve the transient response of the 2nd order circuits by using Laplace’s transform.
Class 9 Summary and confirmation of study until then Summarize and check the study until then; Laplace’s transform and draw the transient response of electrical circuits using Laplace’s transform.
Class 10 Sinusoidal wave and complex expression Can explain the response to the sinusoidal wave in electric circuits and complex expression.
Class 11 Impedance and Admittance and vector expression Can explain the impedance, the admittance, and vector expression.
Class 12 Impedance and Admittance and their applications Can calculate the circuit characteristics.
Class 13 Resonant circuits Can explain the electrical characteristics of the resonant circuits and explain them.
Class 14 Transformer and its application Can explain the transformer.

Out-of-Class Study Time (Preparation and Review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.


"A New Approach to Electrical Circuits" by Akira Matsuzawa, Koudansha Publishing

Reference books, course materials, etc.

Course materials can be found on T2SCHOLA.

Assessment criteria and methods

Student’s course scores are conducted based on the due reports (30%) and final examination (70%).

Related courses

  • EEE.C202 : Electric Circuits II
  • EEE.M211 : Fourier Transform and Laplace Transform

Prerequisites (i.e., required knowledge, skills, courses, etc.)

No prerequisite.

Contact information (e-mail and phone)    Notice : Please replace from "[at]" to "@"(half-width character).

E-mail: pham.n.ab[at]m.titech.ac.jp, tokuda[at]ee.e.titech.ac.jp

Office hours

Contact by e-mail advance to schedule an appointment and come to professor’s office.

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