Basic Electric and Electronic Engineering
Teachers TSURUTA YOSHIHIRO Year 1　1st semest [Department of Aerospace Engineering, Faculty of Science and Engineering] Basic Major Subjects Elective Requisites　2credit 2C101

#### Course Description

Electric and electronic engineering are used in every field of technology, and all the people studying science and/or technology should have a basic knowledge and understanding of electric and electronic engineering.
This course consists of lectures in the classroom with exercises dealing with practical problems.
Students are expected to acquire the knowledge and techniques related to DP1.

#### Course Objectives

Important contents to be learned in this course are:
1. characteristics of circuit elements: power source, resistance (R), coil (L) and condenser (C)
2. basics of direct current (DC) circuits: Ohm's law, Kirchhoff's rules, principle of superposition, combined resistance
3. basics of alternating current (AC) circuits: cyclic behaviors of voltage and current, impedance of R, L and C
4. calculation of voltages and currents in DC and in AC circuits, resonance circuits
The first objective is to learn and understand the basic knowledge required in dealing with electricity, such as voltage, current, and interaction between electricity and magnetism.
The second objective is to understand how resistances, condensers and coils work in direct current (DC) circuit and alternating current (AC) circuit.
The third objective is that students are able to calculate voltages or currents at various points in electrical circuit.

Grading policy is based on the results of final examination (80%) and on exercise answers at each class (30%).

#### Textbook and Reference

KindTitleAuthorPublisher
TextbookElectric and electronic circuits -- easiest to understand in the world (世界一わかりやすい電気・電子回路)
Tetsuro Yabu (藪 哲郎)Koudan publishing Co., ISBN978-4-06-156573-9 (講談社)
Referencesnone

#### Requirements(Assignments)

The course requires basic knowledge and understanding of mathematics, especially in derivatives, integrals, triangular functions and complex numbers,

#### Note

The contents of this course is necessary for students to understand the contents of other various lectures, exercises and experiments learned and studied in Aerospace Engineering Department.
It is strongly recommended that every student of Aerospace Engineering should take this course.

#### Schedule

1Introduction to direct current (DC) circuits: concept of voltage, current and resistance, electrical units, power source (voltage source), resistance, Ohm's law
2Kirchihoff's current rule and voltage rule, series or parallel connection of resistances, combined resistance, short circuit
3Voltage and current meter, calculation of voltages and currents with Kirchhoff's rules
4Principle of superposition, symbol of grounding, bridge circuit
5Thevenin's theorem, current source, electric power and energy
6Alternating current (AC) elements: resistance (R), coil/inductance (L), and condenser/capacitance (C), right-handed screw rule, Lenz's law, electromagnetic induction
7AC voltage and current, sine wave, period of wave, phase of wave, frequency, angular frequency, amplitude
8Periodic variations of voltage and current at a coil and a condenser (sine wave AC)
9Basics of complex numbers: absolute value and argument (phase), impedance of R, L and C in complex numbers
10Vector diagram, RL series circuit, RC parallel circuit, RLC series/parallel circuit
11Principles and features of series or parallel resonance circuit
12AC electric power (effective power, reactive power, power ratio), effective value of voltage and current
13Frequency characteristics, RC low-pass filter, RC high-pass filter
14Voltage transformer, circuit with both DC and AC current
15Review and exercises, examination