For mechanical engineer, in addition to the knowledge of mechanical engineering, the knowledge of electronics is indispensable
to carry out complex control of mechanical system. In this class, the fundamental concepts of electricity and electronics
are introduced that involve direct current (dc), alternating current (ac), series and parallel circuits, network analysis,
magnetism, inductance, capacitance, transformers, electronic components and so on.
Although the method of operating a machine only by using a mechanism (mechanism) is an ideal, it is impossible to realize
complicated operation only by using a mechanism. Generally it is necessary to realize a complicated motion of a machine using
air pressure, oil pressure, or electric power. In such a case, electric signal is used for signal processing from a sensor,
or for control of an actuator. That is, electric knowledge is indispensable to realize a complex operation of a machine.In
this class, the knowledge of fundamental electricity is learned and it aims at coming to be able to perform calculation of
DC circuit and AC circuit.
- Understand the characteristics of resistors, capacitors, and inductances, which are the components of DC circuits, and be able to perform simple circuit calculations.
- Understand the impedance in an AC circuit and perform simple circuit calculations.
- Understand the basic characteristics of semiconductor devices and the operating principle of diodes and transistors, and be able to perform simple circuit calculations.
- Understand rectifier circuits and amplifier circuits that use operational amplifiers, and be able to perform simple circuit calculations.
- Realize combinational circuits and sequential circuits using digital ICs.
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1. | Direct-current circuit 1 1) Guidance 2) Current / voltage / resistance 3) Ohm's law 4) Electrons and current 5) Series connection of resistors 6) Voltage division 7) Install LTspice |
Homework(Direct-current circuit) | 190minutes |
| 2. | Direct-current circuit 2 1) Parallel connection of resistors 2) Shunt and multiplier 3) Wheatstone bridge 4) Kirchhoff's first law 5) Kirchhoff's second law 6) Superposition theorem 7) Simulation training with LTspice |
Homework(Direct-current circuit) | 190minutes |
| 3. | What are electrical energy and electrical resistance? 1) Thermal energy generated by electricity 2) Electric energy consumption and power 3) Electrical energy generated by heat 4) resistivity 5) Conductivity 6) Change in resistance value due to temperature 7) Simulation training with LTspice |
Homework(Direct-current circuit) | 190minutes |
| 4. | Properties of magnets, strength of magnetic field 1) Magnet and magnetism 2) Force acting on the magnetic pole 3) Magnetic induction 4) Magnetic field due to electric current 5) Strength of magnetic field due to point magnetic charge 6) Biot–Savart law 7) Ampere's circuit law |
Homework(Electricity and magnetism) | 190minutes |
| 5. | Force to rotate DC motor, magnetic circuit, electromagnetic induction 1) Magnetic field strength and magnetic flux density 2) Electromagnetic force 3) Torque acting on the rectangular coil 4) Changes in torque due to coil rotation 5) Magnetomotive force and reluctance 6) Permeability and relative permeability 7) Magnetic flux density and magnitude of magnetic field 8) Electromagnetic induction 9) Size and direction of induced electromotive force 10) Induced electromotive force generated in a linear conductor 11) Conductor motion direction and induced electromotive force |
Homework(Electricity and magnetism) | 190minutes |
| 6. | The basics of AC circuits, the function of coils, the function of capacitors 1) Sine wave AC period, maximum value, effective value 2) Angular velocity and phase of sinusoidal alternating current 3) Sine wave AC phasor and complex number display 4) Self-induction and self-inductance 5) Mutual induction and mutual inductance 6) Static electricity and Coulomb's law 7) Strength of electric lines of force and electric field 8) Electric flux and electric flux density 9) Capacitors and capacitance |
Homework(Electricity and magnetism) | 190minutes |
| 7. | AC circuit part 1 (simulation training) 1) Basic circuit only for R, L, C 2) R / L / C series circuit 3) Series resonant circuit 4) Simulation training with LTspice |
Homework(AC circuit) | 190minutes |
| 8. | AC circuit part 2 (simulation training) 1) R / L / C parallel circuit 2) Calculation of parallel resonant circuit and resonant curve 3) Simulation training with LTspice |
Homework(AC circuit) | 190minutes |
| 9. | Semiconductor element 1 (simulation training) 1) Functions of semiconductors and electrons 2) Diode structure 3) Forward bias and reverse bias 4) Diode and rectifier circuit 5) Simulation training with LTspice |
Homework(AC circuit) | 190minutes |
| 10. | Semiconductor element 2 (simulation training) 1) Transistor structure 2) Transistor operating principle 3) Static characteristics of the transistor 4) Various actions of transistors |
Homework(AC circuit) | 190minutes |
| 11. | Operational amplifier circuit 1 (simulation training) 1) Basics of operational amplifier 2) Inversion amplifier circuit by operational amplifier 3) Non-inverting amplifier circuit with operational amplifier 4) Comparator circuit with operational amplifier 5) Simulation training with LTspice |
Homework(Semiconductor device) | 190minutes |
| 12. | Operational amplifier circuit 2 (simulation training) 1) Low-pass filter (LPF) with capacitors and resistors 2) High-pass filter (HPF) with capacitors and resistors 3) Low-pass filter (LPF) with operational amplifier 4) High-pass filter (HPF) with operational amplifier 5) Simulation training with LTspice |
Homework(Transistor, Operational amplifier) | 190minutes |
| 13. | Digital circuit 1) Basics of digital circuits 2) Basics of digital IC 3) Combination circuit 4) Sequential circuit 5) Simulation training with LTspice |
Homework(The foundation of digital circuit) | 190minutes |
| 14. | Final exam and commentary | Homework for Final examination | 190minutes |
| Total. | - | - | 2660minutes |
| Report | Final Examination | Total. | |
|---|---|---|---|
| 1. | 10% | 10% | 20% |
| 2. | 10% | 10% | 20% |
| 3. | 10% | 10% | 20% |
| 4. | 10% | 10% | 20% |
| 5. | 10% | 10% | 20% |
| Total. | 50% | 50% | - |
Report (50%) and final exams (50%) . A minimum grade of 60% is needed.
It is a level that can solve the same level of problems as the text example.
Homework must be submitted.
It is a level that can solve the same level of problems as the text example.
Homework must be submitted.
- Course that cultivates a basic problem-solving skills
- Course that cultivates an ability for utilizing knowledge
- Course that cultivates a basic self-management skills
| Work experience | Work experience and relevance to the course content if applicable |
|---|---|
| Applicable |
Last modified : Sat Sep 09 06:48:53 JST 2023