Electronics
From Ohm's law to VLSI — circuits, semiconductors, amplifiers, digital logic, signal processing, power conversion, and modern design.
The Electronics Landscape
About This Course
Electronics is the science and engineering of controlling electric current to process information and convert energy. From the transistor radio to the smartphone, from the Mars rover to the MRI scanner, electronic circuits are the foundation of modern technology.
This course starts from first principles — Ohm's law and Kirchhoff's laws — and builds systematically through semiconductor physics, analog amplifier design, digital logic, signal processing, power conversion, and modern design practices. Every chapter includes interactive Python simulations and detailed mathematical derivations with MathJax.
The key equations of electronics span centuries of physics:\(V = IR\) (Ohm, 1827),\(I = I_0(e^{V/V_T} - 1)\) (Shockley diode),\(V_{out} = A_{OL}(V^+ - V^-)\) (op-amp),\(f_s \geq 2f_{max}\) (Nyquist), and \(P_{out}/P_{in} = \eta\) (efficiency).
21
Chapters
7
Parts
20+
Python Simulations
100+
Circuit Diagrams
Course Structure
Circuit Fundamentals
Ohm’s law, Kirchhoff’s laws, voltage dividers, RC/RL/RLC transients, AC steady-state analysis, impedance, and phasors.
Semiconductor Physics
Band theory, intrinsic and doped semiconductors, PN junctions, diode circuits, BJTs, and MOSFETs.
Analog Electronics
Small-signal amplifier models, operational amplifiers, inverting/non-inverting configurations, negative feedback, Bode plots, and stability.
Digital Electronics
Boolean algebra, combinational logic gates (AND, OR, NOT, NAND, XOR), sequential logic, flip-flops, counters, and finite state machines.
Signal Processing
Nyquist sampling, ADCs and DACs, analog and digital filter design (Butterworth, Chebyshev, FIR/IIR), AM/FM modulation.
Power Electronics
Diode rectifiers, linear and switching voltage regulators, buck/boost/buck-boost converters, H-bridges, and motor drive circuits.
Modern Electronics
PCB layout and design rules, microcontroller programming (Arduino/STM32), RF front-ends, VLSI design flow, and photonics.
Recommended Textbooks
- The Art of Electronics — Horowitz & Hill (3rd ed., 2015)
- Microelectronic Circuits — Sedra & Smith (8th ed., 2020)
- Digital Design and Computer Architecture — Harris & Harris (2nd ed., 2012)
- Fundamentals of Power Electronics — Erickson & Maksimovi\u0107 (3rd ed., 2020)
- Practical Electronics for Inventors — Scherz & Monk (4th ed., 2016)
Video Lectures: Electronics 110/120
Complete lecture series covering fundamentals of electricity, AC circuits, semiconductors, transistors, amplifiers, and digital logic.
1. Fundamentals of Electricity
2. Current
3. Voltage
4. Resistance
5. Ohm's Law
7. Power
8. DC Circuit Wrapup
9. Magnetism
11. Capacitance
12. AC
13. AC Measurements
14. Resistive AC Circuits
16. Inductive Reactance
17. Resonance
18. Transformers
19. Semiconductors
20. PN Junction Diodes
21. Bipolar Junction Transistors
22. Field Effect Transistors (FETs)
24. Thyristors
28. Amplifier Basics
29. Amplifier Applications
30. Oscillators
31. Combinational Logic Circuits
32. Binary Number System
33. Logic Gates
MIT 6.131: Power Electronics
30 lectures covering rectifiers, DC/DC converters, magnetics, inverters, three-phase systems, control, and EMI filters.
1. Introduction to Power Electronics
2. Analysis Methods & Rectifiers
3. Load Regulation
4. Power Factor
5. Intro to DC/DC, Part 1
6. DC/DC, Part 2
7. DC/DC, Part 3
8. DC/DC, Part 4
9. Magnetics, Part 1
10. Magnetics, Part 2
11. Magnetics, Part 3
12. Magnetics, Part 4
13. Isolated DC/DC, Part 1
14. Isolated DC/DC, Part 2
15. Switching Losses & Snubbers
16. Thermal Modeling & Heat Sinking
17. Inverters, Part 1
18. Inverters, Part 2
19. Inverters, Part 3
20. Switched-Mode Rectifiers
21. Three-Phase Systems, Part 1
22. Three-Phase Systems, Part 2
23. Three-Phase Inverters
24. Control, Part 1
25. Control, Part 2
26. Control, Part 3
27. Current-Mode Control
28. EMI Filters, Part 1
29. EMI Filters, Part 2
30. EMI Filters, Part 3