# Electrical Engineering

Canonical URL: https://shipslides.com/d/engineering-electrical-engineering
Raw viewer URL: https://content.shipslides.com/d/engineering-electrical-engineering/raw
Category: Engineering
Slides: 32
Updated: 2026-05-17T20:51:53.975Z
Tags: engineering, electrical

## Summary

From Franklin's kite to quantum computing: the discipline that electrified civilization, connected the world, and continues to define the boundary of the possible. Key sections include: Electrical Engineering; Table of Contents; What Is Electrical Engineering?; Fundamentals: Voltage, Current, Resistance; Circuit Analysis; Electromagnetism; History: From Faraday to Edison; AC vs. DC: The War of Currents; Power Generation; Power Transmission and Distribution.

## Slide Outline

1. Electrical Engineering
2. Table of Contents
3. What Is Electrical Engineering?
4. Fundamentals: Voltage, Current, Resistance
5. Circuit Analysis
6. Electromagnetism
7. History: From Faraday to Edison
8. AC vs. DC: The War of Currents
9. Power Generation
10. Power Transmission and Distribution
11. Electric Motors and Generators
12. Semiconductors and Solid State
13. Transistors: The Building Block
14. Integrated Circuits
15. Digital Logic
16. Microprocessors
17. Signal Processing
18. Communications Systems
19. Wireless and RF Engineering
20. Optical Engineering and Photonics
21. Control Systems
22. Power Electronics
23. Renewable Energy Systems
24. Electric Vehicles
25. Instrumentation and Measurement
26. Embedded Systems
27. VLSI Design
28. The Smart Grid
29. Quantum Electronics
30. The Future of Electrical Engineering
31. EE Subdisciplines Overview
32. Further Reading

## Slide Transcript

### Slide 1: Electrical Engineering

- From Franklin's kite to quantum computing: the discipline that electrified civilization, connected the world, and continues to define the boundary of the possible.
- 32 slides • Scroll to navigate
- 1 / 32

### Slide 2: Table of Contents

- What Is Electrical Engineering?
- Fundamentals: Voltage, Current, Resistance
- Circuit Analysis
- Electromagnetism
- History: From Faraday to Edison
- AC vs. DC: The War of Currents
- Power Generation
- Power Transmission and Distribution
- Electric Motors and Generators
- Semiconductors and Solid State
- Transistors: The Building Block
- Integrated Circuits
- Digital Logic
- Microprocessors
- Signal Processing
- Communications Systems
- Wireless and RF Engineering
- Optical Engineering and Photonics
- Control Systems
- Power Electronics
- Renewable Energy Systems
- Electric Vehicles
- Instrumentation and Measurement
- Embedded Systems
- VLSI Design
- The Smart Grid
- Quantum Electronics
- The Future of EE
- Reading List
- 2 / 32

### Slide 3: What Is Electrical Engineering?

- Electrical engineering is the branch of engineering concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It is the largest engineering discipline by employment.
- Power & Energy
- Generation, transmission, distribution, and utilization of electrical power. From nuclear plants to solar panels to the outlets in your wall.
- Electronics
- Design of circuits using semiconductors, transistors, and integrated circuits. From a simple amplifier to a billion-transistor processor.
- Communications
- Transmission of information via electrical signals: radio, fiber optics, satellite, cellular networks. The physical layer of the internet.
- Control Systems
- Feedback systems that maintain desired behavior: cruise control, autopilots, industrial process control, robotics.
- Signal Processing
- Analysis, modification, and synthesis of signals: audio, video, radar, medical imaging, speech recognition.
- Computer Engineering
- Hardware design: processors, memory, FPGAs, embedded systems. The bridge between EE and computer science.
- 3 / 32

### Slide 4: Fundamentals: Voltage, Current, Resistance

- All of electrical engineering rests on three fundamental quantities and their relationship described by Ohm's Law (1827).
- The Big Three
- Voltage (V): Electrical potential difference -- the "pressure" that pushes electrons. Measured in volts. A wall outlet: 120V (US), 230V (EU). A lightning bolt: 300 million V.
- Current (I): Flow of electric charge -- electrons moving through a conductor. Measured in amperes. A smartphone charges at 2A; a house main breaker: 200A.
- Resistance (R): Opposition to current flow. Measured in ohms. Copper wire: milliohms. Human body: 1,000-100,000 ohms. Air: gigaohms (until breakdown = lightning).
- Ohm's Law & Power
- V = I * R
- P = V * I = I^2*R = V^2/R
- These two equations govern everything from a flashlight circuit to a national power grid. Power (watts) is the rate of energy transfer. A 100W bulb converts 100 joules per second.
- Kirchhoff's Laws
- KVL: Sum of voltages around any closed loop = 0
- KCL: Sum of currents into any node = 0
- 4 / 32

### Slide 5: Circuit Analysis

- Analyzing circuits -- predicting voltages and currents at every point -- is the bread and butter of EE. Techniques range from simple series/parallel combinations to matrix methods for complex networks.
- Passive Components
- Resistors: Dissipate energy as heat. V = IR
- Capacitors: Store energy in electric field. I = C*dV/dt. Block DC, pass AC.
- Inductors: Store energy in magnetic field. V = L*dI/dt. Pass DC, block AC.
- Analysis Methods
- Node voltage: KCL at each node; solve simultaneous equations
- Mesh analysis: KVL around each loop
- Superposition: Analyze each source separately; sum results
- Thevenin/Norton: Reduce complex networks to simple equivalents
- AC Analysis
- For sinusoidal signals, use phasors (complex numbers representing amplitude and phase). Impedance Z generalizes resistance to AC: Z_R = R, Z_C = 1/jwC, Z_L = jwL. Enables frequency-domain analysis.
- Transient Analysis
- When switches close or signals change: RC time constants (tau = RC), LC oscillations, damped responses. Differential equations describe the transition between steady states.
- 5 / 32

### Slide 6: Electromagnetism

- Maxwell's equations (1865) unified electricity, magnetism, and light into a single theory -- perhaps the greatest intellectual achievement in physics. They are the foundation of all EE.
- Maxwell's Four Equations
- Gauss (E): Electric charges create electric fields (divergence of E = charge density)
- Gauss (B): No magnetic monopoles exist (divergence of B = 0)
- Faraday: Changing magnetic fields create electric fields (basis of generators, transformers)
- Ampere-Maxwell: Electric currents and changing electric fields create magnetic fields (basis of motors, electromagnets, radio)
- Practical Consequences
- Electromagnetic waves: Light, radio, microwaves, X-rays are all the same phenomenon at different frequencies
- Antennas: Accelerating charges radiate EM waves
- Transformers: Changing current in one coil induces voltage in another (Faraday's law)
- Skin effect: AC current concentrates on conductor surface at high frequencies
- Waveguides: EM waves can be guided through hollow metal tubes
- "Maxwell's equations have had a greater impact on human history than any ten presidents."
- -- Carl Sagan (attributed)
- 6 / 32

### Slide 7: History: From Faraday to Edison

- 1752 -- Benjamin Franklin proves lightning is electrical (kite experiment)
- 1800 -- Alessandro Volta invents the voltaic pile (first battery)
- 1820 -- Hans Christian Oersted discovers electromagnetism (current deflects compass)
- 1831 -- Michael Faraday discovers electromagnetic induction (generator principle)
- 1837 -- Samuel Morse demonstrates the telegraph
- 1865 -- James Clerk Maxwell publishes electromagnetic theory
- 1876 -- Alexander Graham Bell patents the telephone
- 1879 -- Thomas Edison demonstrates practical incandescent light bulb
- 1882 -- Edison opens Pearl Street Station: first commercial power plant (DC, Manhattan)
- 1887 -- Heinrich Hertz confirms electromagnetic waves exist (radio)
- 1888 -- Nikola Tesla patents AC induction motor and polyphase power system
- 7 / 32

### Slide 8: AC vs. DC: The War of Currents

- The 1880s-90s battle between Edison (DC) and Westinghouse/Tesla (AC) was both a technical debate and a brutal business war. AC won decisively -- but DC is making a comeback in the 21st century.
- Edison's DC
- Simple, well-understood, safe at low voltages
- Cannot be easily transformed to higher voltages
- Limited transmission distance (~1 mile due to resistive losses)
- Required a power station every few blocks
- Edison launched propaganda campaign (electrocuting animals) to discredit AC
- Tesla/Westinghouse AC
- Transformers step voltage up for transmission, down for use
- High voltage = low current = low transmission losses (P = I^2 * R)
- Can transmit hundreds of miles efficiently
- AC motors (Tesla's induction motor) are simpler and cheaper
- Won decisively: 1893 Chicago World's Fair, Niagara Falls (1895)
- Modern twist: HVDC (High Voltage DC) transmission is now preferred for very long distances (>600 km) and undersea cables. Solar panels, batteries, and electronics all produce/consume DC. The "war" continues in new form.
- 8 / 32

### Slide 9: Power Generation

- Nearly all electricity generation (except solar PV) works on the same principle: spin a magnet inside a coil of wire (Faraday's law). The question is what provides the spin.
- SourceGlobal Share (2023)Principle
- Coal35%Burn coal, boil water, steam drives turbine
- Natural Gas23%Gas turbine (jet engine) + steam turbine (combined cycle)
- Hydroelectric15%Falling water spins turbine directly
- Nuclear9%Fission heat boils water; steam drives turbine
- Wind8%Wind spins rotor connected to generator
- Solar PV6%Photovoltaic effect: photons create electron-hole pairs in silicon
- Other (biomass, geothermal)4%Various heat sources drive steam turbines
- Global electricity generation: 29,000 TWh/year (2023). Growing ~3%/year. Decarbonization requires replacing ~60% of generation (fossil) with zero-carbon sources within 25 years.
- 9 / 32

### Slide 10: Power Transmission and Distribution

- The electrical grid is the largest machine ever built -- millions of kilometers of wire connecting generators to consumers, all synchronized at exactly 50 or 60 Hz, in real time.
- Transmission (HV)
- Bulk power moved at 115-765 kV (AC) or up to 1,100 kV (HVDC). Higher voltage = less current = less loss. US: 160,000 miles of HV transmission lines. Losses: 2-3% at this stage.
- Distribution (MV/LV)
- Substations step down to 4-35 kV for local distribution, then transformers reduce to 120/240V (US) or 230/400V (EU) for consumers. Last mile: 60% of all grid losses occur here.
- Grid Stability
- Supply must exactly match demand at every instant. Frequency deviations (from 60.000 Hz) indicate imbalance. Generators have inertia (spinning mass) that resists sudden changes -- renewables do not.
- Challenges
- Aging infrastructure (US grid: average age 40+ years)
- Integrating variable renewables (duck curve)
- Electrification increasing demand (EVs, heat pumps, AI data centers)
- Extreme weather and cybersecurity threats
- 10 / 32

### Slide 11: Electric Motors and Generators

- Motors convert electrical energy to mechanical motion; generators do the reverse. Together they enable essentially all industrial civilization -- from factory production lines to electric vehicles.
- DC Motors
- Simple speed control via voltage. Brushed types require maintenance. Used in: small devices, automotive (wipers, seats), some industrial applications. Being replaced by brushless (BLDC) which are electronically commutated.
- AC Induction Motor
- Tesla's invention (1888). Workhorse of industry -- 70% of all industrial motors. Robust, cheap, maintenance-free. Rotating magnetic field induces current in rotor. Variable frequency drives (VFDs) enable precise speed control.
- Synchronous Motor
- Rotor turns at exactly the supply frequency (no slip). Used in large industrial drives and power generation. Permanent magnet types (PMSM) dominate EVs due to high efficiency and power density.
- Key Metrics
- Efficiency: modern motors reach 97%+ (IE4/IE5 class)
- Motors consume ~45% of global electricity
- Tesla Model 3: PMSM rear, induction front; 95%+ efficient
- Largest motors: 65 MW (mining, pipeline compressors)
- 11 / 32

### Slide 12: Semiconductors and Solid State

- The semiconductor revolution began with the understanding that certain materials (silicon, germanium) can be made to conduct or insulate depending on impurities (doping) and applied voltage -- enabling electronic switching.
- Band Theory
- Conductors: Overlapping valence/conduction bands (metals)
- Insulators: Large band gap (>4 eV) -- electrons cannot jump
- Semiconductors: Small band gap (~1.1 eV for Si) -- controllable conduction
- N-type doping: Add phosphorus (extra electron) -- negative carriers
- P-type doping: Add boron (missing electron = "hole") -- positive carriers
- The P-N Junction
- Where P-type meets N-type material, a depletion region forms. Current flows easily in one direction (forward bias) but is blocked in reverse. This is a diode -- the simplest semiconductor device.
- Applications of the p-n junction: rectification, voltage regulation (Zener), light emission (LED), light detection (photodiode), solar cells (photovoltaic effect).
- 12 / 32

### Slide 13: Transistors: The Building Block

- The transistor (1947, Bell Labs) is arguably the most important invention of the 20th century. It is a voltage-controlled switch -- and everything digital is built from billions of these switches.
- BJT (Bipolar Junction)
- Current-controlled device (NPN/PNP). Small base current controls large collector current. Invented first (1947). Still used in: RF amplifiers, analog circuits, power electronics.
- MOSFET
- Voltage-controlled device. Gate voltage creates a conducting channel. Dominant in digital circuits (virtually zero static power). Every logic gate, every CPU, every memory cell uses MOSFETs.
- CMOS
- Complementary MOS: pairs NMOS and PMOS transistors. Only draws power during switching (no static current). Enabled the digital revolution by making dense, low-power ICs possible.
- Scale
- 1947: single transistor (Bell Labs)
- 1971: 2,300 transistors (Intel 4004)
- 2000: 42 million (Pentium 4)
- 2024: 200+ billion (Apple M4 Ultra)
- Modern gate length: 3-5 nm
- 13 / 32

### Slide 14: Integrated Circuits

- Jack Kilby (Texas Instruments) and Robert Noyce (Fairchild) independently invented the integrated circuit in 1958-59 -- placing multiple transistors on a single semiconductor die. This launched the most exponential technology curve in history.
- 2x/2yr
- Moore's Law (transistor density doubling)
- $600B
- Global semiconductor revenue (2024)
- 3 nm
- Leading-edge process node (TSMC, Samsung)
- 13B
- Transistors in Apple A17 Pro
- IC Types
- Logic: CPUs, GPUs, FPGAs, ASICs
- Memory: DRAM, SRAM, Flash (NAND/NOR)
- Analog: Op-amps, ADCs, DACs, voltage regulators
- Mixed-signal: RF transceivers, sensor interfaces
- Power: Motor drivers, voltage converters
- MEMS: Accelerometers, gyroscopes, pressure sensors
- 14 / 32

### Slide 15: Digital Logic

- All digital computation reduces to combinations of basic logic gates -- AND, OR, NOT -- implemented as transistor circuits. From these primitives, any computable function can be built.
- Fundamental Gates
- GateFunctionCMOS Transistors
- NOT (Inverter)Output = opposite of input2
- NANDNOT(A AND B)4
- NORNOT(A OR B)4
- XORA or B but not both8-12
- NAND is functionally complete: any logic function can be built from NAND gates alone. All modern processors are ultimately networks of billions of these gates.
- Building Blocks
- Combinational: Output depends only on current inputs (adders, multiplexers, decoders)
- Sequential: Output depends on inputs AND previous state (flip-flops, registers, counters)
- Flip-flop: Stores 1 bit; the fundamental memory element
- State machine: Sequential logic implementing defined behavior transitions
- HDL design: Modern circuits described in Verilog/VHDL, synthesized automatically
- 15 / 32

### Slide 16: Microprocessors

- The microprocessor (Intel 4004, 1971) placed an entire computer's central processing unit on a single chip -- democratizing computation and launching the personal computer revolution.
- 1971 -- Intel 4004: 4-bit, 2,300 transistors, 740 kHz
- 1978 -- Intel 8086: 16-bit, foundation of x86 architecture
- 1985 -- Intel 386: 32-bit, virtual memory, multitasking
- 1993 -- Pentium: superscalar, 66 MHz, 3.1M transistors
- 2003 -- AMD Opteron: first x86-64 (64-bit extension)
- 2006 -- Intel Core 2: multi-core era begins (clock speed wall hit)
- 2020 -- Apple M1: ARM-based, unified memory, 5nm; performance/watt revolution
- 2024 -- Apple M4, AMD Zen 5, Intel Arrow Lake: 3nm, AI acceleration built-in
- Modern CPUs execute billions of instructions per second, predict branches with 97% accuracy, and manage pipelines 20+ stages deep -- all invisible to software.
- 16 / 32

### Slide 17: Signal Processing

- Signal processing is the art and science of extracting information from signals (audio, video, radar, biomedical) and transforming them for transmission, storage, or analysis.
- Analog Signal Processing
- Filters, amplifiers, modulators implemented with op-amps, capacitors, inductors. Still essential for: anti-aliasing before ADC, RF front-ends, audio amplification, sensor conditioning.
- Digital Signal Processing (DSP)
- After A/D conversion, signals are numbers in memory. Algorithms replace circuits: FIR/IIR filters, FFT (frequency analysis), correlation, compression. Advantages: precision, repeatability, reconfigurability.
- Key Transforms
- Fourier Transform: Decompose any signal into sinusoidal components (frequency domain)
- Laplace Transform: Analyze LTI systems; transfer functions H(s)
- Z-Transform: Discrete-time equivalent of Laplace
- Wavelet Transform: Time-frequency analysis at multiple scales
- Applications
- Audio: noise cancellation, equalization, compression (MP3/AAC)
- Image: denoising, edge detection, compression (JPEG, HEVC)
- Radar: target detection, Doppler processing, SAR imaging
- Biomedical: ECG/EEG filtering, MRI reconstruction
- 17 / 32

### Slide 18: Communications Systems

- From Morse's telegraph to 5G cellular, the fundamental challenge of communications engineering remains: transmit information reliably over noisy, bandwidth-limited channels.
- Shannon's Theorem (1948)
- C = B * log2(1 + SNR)
- The channel capacity C (maximum error-free data rate) is determined by bandwidth B and signal-to-noise ratio. This theoretical limit guides all communication system design. Modern systems (5G, Wi-Fi 7) operate within 1-2 dB of Shannon's limit.
- Key Modulation Techniques
- AM/FM: Analog; AM radio, FM stereo
- QAM: Encodes bits in amplitude and phase (Wi-Fi: 1024-QAM)
- OFDM: Divides spectrum into many narrow subcarriers (4G, 5G, Wi-Fi)
- Spread spectrum: Spreads signal across wide bandwidth (GPS, CDMA)
- MIMO: Multiple antennas exploit spatial diversity (5G: massive MIMO, 64+ antennas)
- 5.4B
- Mobile subscribers (2024)
- 20 Gbps
- 5G peak theoretical rate
- 500M km
- Submarine fiber cable deployed
- 18 / 32

### Slide 19: Wireless and RF Engineering

- Radio frequency (RF) engineering deals with signals from ~3 kHz to 300 GHz -- the spectrum that enables everything from AM radio to satellite communications to 5G mmWave.
- The Electromagnetic Spectrum
- BandFrequencyUse
- HF3-30 MHzShortwave radio, amateur
- VHF/UHF30-3000 MHzTV, FM radio, 4G LTE
- SHF (microwave)3-30 GHz5G, Wi-Fi, radar, satellite
- EHF (mmWave)30-300 GHz5G mmWave, imaging, future 6G
- Antenna Engineering
- Antennas convert between guided waves (in transmission lines) and free-space radiation. Size proportional to wavelength. Types: dipole, patch (phones), horn, parabolic dish, phased array (electronically steered beams without moving parts).
- RF Challenges
- Path loss (signal strength falls as 1/r^2)
- Multipath: reflections cause constructive/destructive interference
- Spectrum scarcity: finite resource allocated by regulators
- Interference management: millions of devices sharing frequencies
- 19 / 32

### Slide 20: Optical Engineering and Photonics

- Fiber optics carry 99% of intercontinental data traffic. A single fiber can carry 100+ Tbps -- more than the entire internet traffic of the early 2000s.
- Fiber Optics
- Light trapped by total internal reflection in glass core (8-62.5 um diameter)
- Attenuation: 0.2 dB/km at 1550 nm (signal halves every 15 km)
- Amplifiers (EDFA) boost signal without converting to electronics
- WDM: many wavelengths in one fiber (100+ channels)
- Submarine cables: 500+ million km deployed globally
- Photonic Devices
- Lasers: Coherent light sources for communications, manufacturing, medicine, LiDAR
- LEDs: Solid-state lighting (90% market share by 2030)
- Photodetectors: Convert light to electrical signal (PIN, APD)
- Photonic ICs: Silicon photonics integrating optics on chip (data center interconnects)
- LiDAR: Laser ranging for autonomous vehicles, mapping
- 20 / 32

### Slide 21: Control Systems

- Control engineering ensures systems behave as desired despite disturbances and uncertainties. The thermostat is the simplest example; a self-driving car is among the most complex.
- Feedback Control
- Measure the output, compare to desired value (reference), compute error, adjust input. The PID controller (Proportional-Integral-Derivative) handles 90%+ of industrial control loops.
- Classical Methods
- Transfer functions: H(s) = Output/Input in Laplace domain
- Bode plots: Frequency response (gain and phase vs. frequency)
- Root locus: How closed-loop poles move with gain
- Nyquist/stability: Determine if feedback system is stable
- Modern Control
- State-space: Matrix representation for MIMO systems
- Optimal control: LQR, MPC (model predictive control)
- Robust control: H-infinity, mu-synthesis (handle uncertainty)
- Adaptive/learning: Neural network controllers, reinforcement learning
- Applications
- Autopilots, cruise control, industrial robots, power grid frequency regulation, chemical process control, active noise cancellation, autonomous vehicles, spacecraft attitude control.
- 21 / 32

### Slide 22: Power Electronics

- Power electronics convert electrical energy from one form to another (AC to DC, DC to AC, voltage levels) with minimal loss. They are the invisible enablers of the energy transition.
- Converter Types
- Rectifier (AC-DC): Phone chargers, power supplies, EV charging
- Inverter (DC-AC): Solar panels to grid, motor drives, UPS
- DC-DC converter: Voltage regulation in electronics, EV battery management
- AC-AC: Frequency converters for motor speed control
- Key Devices
- MOSFET: Fast switching, low/medium power
- IGBT: High voltage/current (kV/kA), medium speed; industrial drives, rail
- SiC (Silicon Carbide): Higher temp, voltage, efficiency; EVs, solar inverters
- GaN (Gallium Nitride): Ultra-fast switching; phone chargers, data centers
- Why It Matters
- Every watt of renewable energy, every EV mile driven, every data center server passes through power electronics. A 1% efficiency improvement at global scale saves gigawatts. SiC/GaN are enabling the transition from 90% to 99%+ conversion efficiency.
- 22 / 32

### Slide 23: Renewable Energy Systems

- Electrical engineers are central to the energy transition: designing solar cells, wind turbine generators, grid-scale batteries, and the power electronics that connect it all.
- Solar Photovoltaics
- Silicon cells: 26.8% lab efficiency (crystalline Si); 22-24% commercial
- Perovskite-silicon tandems: 33.9% efficiency (2024 record)
- Cost: $0.20/W module (down from $76/W in 1977)
- Global installed: 1,600 GW (2024)
- LCOE: $20-40/MWh (cheapest new electricity in most locations)
- Wind Power
- Modern turbines: 10-15 MW (offshore); rotor diameter: 220+ m
- Direct-drive generators (no gearbox) using permanent magnets
- Power electronics: full AC-DC-AC conversion for grid compliance
- Global installed: 1,000 GW (2024)
- Capacity factor: 25-55% (location dependent)
- Grid-Scale Storage
- Lithium-ion batteries: 90%+ round-trip efficiency, 4-hour duration dominant. Alternatives for longer duration: iron-air (Form Energy, 100 hours), flow batteries (vanadium redox), compressed air, green hydrogen.
- 23 / 32

### Slide 24: Electric Vehicles

- EVs are rolling electrical engineering marvels: battery chemistry, power electronics, motor design, charging infrastructure, and battery management systems (BMS) all draw on deep EE expertise.
- 14M
- EVs sold globally (2023)
- 18%
- EV share of new car sales (2023)
- 100 kWh
- Typical large EV battery pack
- 350 kW
- Max DC fast charging power
- Battery Technology
- NMC (nickel-manganese-cobalt) and LFP (lithium iron phosphate) chemistries dominate. Energy density: 250-300 Wh/kg cell level. Next: solid-state batteries promising 400+ Wh/kg, faster charging, and improved safety.
- Drivetrain
- Battery (400-800V) to inverter (SiC MOSFETs) to motor (PMSM or induction). Single-speed reduction gear (no transmission needed). Regenerative braking recovers 15-30% of kinetic energy.
- Charging
- Level 1: 1.4 kW (household outlet). Level 2: 7-22 kW (home/destination). DC Fast: 50-350 kW. V2G (vehicle-to-grid): EVs as distributed storage for grid balancing.
- 24 / 32

### Slide 25: Instrumentation and Measurement

- You cannot engineer what you cannot measure. Electrical instrumentation provides the eyes and ears for understanding circuits, signals, and systems.
- Core Instruments
- Oscilloscope: Visualizes voltage vs. time (bandwidth: DC to 100+ GHz)
- Spectrum analyzer: Shows signal power vs. frequency
- Multimeter: Measures V, I, R (the most basic tool)
- Network analyzer: Measures S-parameters of RF components
- Logic analyzer: Captures digital signal timing relationships
- Sensors
- Temperature: Thermocouples, RTDs, thermistors, IR
- Strain: Strain gauges (resistance change with deformation)
- Acceleration: MEMS accelerometers (in every smartphone)
- Magnetic: Hall effect sensors, magnetoresistive, SQUID
- Optical: Photodiodes, CCD/CMOS image sensors, LiDAR
- Data Acquisition
- ADCs (analog-to-digital converters) bridge the physical and digital worlds. Modern: 24-bit resolution (16 million levels), 10+ Gsps sampling rate (for RF), simultaneous multi-channel systems for industrial monitoring.
- 25 / 32

### Slide 26: Embedded Systems

- An embedded system is a computer designed for a specific dedicated function within a larger system -- as opposed to a general-purpose computer. There are roughly 250 billion microcontrollers in active use worldwide.
- Characteristics
- Real-time constraints (deadlines must be met)
- Resource-limited (KB of RAM, MHz clock speeds)
- Low power (years on a battery)
- High reliability (medical, automotive, aerospace)
- Direct hardware interaction (GPIO, ADC, PWM, I2C, SPI)
- Applications
- Automotive: 100+ ECUs per modern car (engine, brakes, infotainment)
- Medical: Pacemakers, insulin pumps, MRI controllers
- IoT: Smart home sensors, industrial monitoring
- Consumer: Every appliance, every toy, every smart device
- Industrial: PLCs, motor controllers, SCADA systems
- Key Platforms
- ARM Cortex-M series dominates embedded (10B+ units/year). RISC-V gaining traction (open ISA). ESP32 (IoT, Wi-Fi/BT). STM32, Nordic nRF (low-power wireless). FPGAs for high-performance/custom logic.
- 26 / 32

### Slide 27: VLSI Design

- Very Large Scale Integration (VLSI) is the process of creating integrated circuits with millions to billions of transistors. It is the pinnacle of electrical engineering complexity.
- Design Flow
- Specification and architecture
- RTL design (Verilog/VHDL)
- Logic synthesis (RTL to gates)
- Place and route (physical layout)
- Verification (simulation, formal, emulation)
- Tape-out and fabrication
- Manufacturing
- Photolithography: project patterns onto silicon using deep UV light (EUV at 13.5 nm for 3nm process). 1,000+ process steps over 3-4 months. A single wafer: $15,000-20,000 (leading edge). Fab cost: $20-30 billion.
- The Players
- TSMC: 60% of foundry market; sole manufacturer of 3nm
- Samsung: Second foundry; also IDM
- Intel: IDM + foundry; catching up at advanced nodes
- ASML: Sole EUV lithography equipment maker (monopoly)
- Challenges
- Power density (dark silicon -- can't turn on all transistors simultaneously)
- Interconnect delay (wires now limit speed more than transistors)
- 3D stacking (chiplets, HBM memory) to continue scaling
- Design cost: $500M+ for a leading-edge SoC design
- 27 / 32

### Slide 28: The Smart Grid

- The traditional grid was one-way: central plant to passive consumer. The smart grid adds two-way communication, distributed generation, storage, and intelligent control -- transforming electricity into an information system.
- Key Technologies
- Smart meters (AMI): real-time consumption data, remote disconnect
- Phasor measurement units (PMUs): wide-area grid state monitoring at 30-60 Hz
- FACTS devices: power electronics for reactive power and flow control
- Battery storage: frequency regulation, peak shaving, arbitrage
- Distributed Energy
- Rooftop solar, small wind, EVs, and home batteries create millions of small generators. "Prosumers" both produce and consume. Virtual power plants aggregate thousands of distributed resources into grid-scale capacity.
- Challenges
- Cybersecurity: grid is critical infrastructure target
- Intermittency management: solar/wind are weather-dependent
- Demand response: shifting consumption to match supply
- Investment: $4.5 trillion needed by 2030 (IEA)
- 28 / 32

### Slide 29: Quantum Electronics

- Quantum computing, quantum communication, and quantum sensing exploit quantum mechanical phenomena (superposition, entanglement) to perform tasks impossible for classical electronics.
- Quantum Computing
- Qubits: Superposition of 0 and 1 simultaneously
- Technologies: Superconducting (IBM, Google), trapped ions (IonQ, Quantinuum), photonic (Xanadu)
- State of art: 1,000+ qubits (IBM Condor); but error rates still too high for practical advantage
- Applications: Cryptography, drug discovery, materials simulation, optimization
- Quantum Communications
- Quantum key distribution (QKD): provably secure communication
- China's Micius satellite: demonstrated 1,200 km quantum link
- Quantum internet: entanglement distribution for secure networks
- Quantum Sensing
- Atomic clocks (10^-18 precision)
- Quantum magnetometers (brain imaging without MRI)
- Quantum gravimeters (mineral exploration)
- 29 / 32

### Slide 30: The Future of Electrical Engineering

- Energy Transition
- Electrification of everything: transport, heating, industry. Grid capacity must triple by 2050. Power electronics, storage, and grid AI are the enabling technologies.
- AI Hardware
- GPUs, TPUs, and custom AI accelerators consume 2-5% of global electricity (growing rapidly). Neuromorphic chips (Intel Loihi, IBM NorthPole) promise 100x efficiency gains for inference.
- 6G and Beyond
- Terahertz communications (0.1-10 THz), reconfigurable intelligent surfaces, integrated sensing and communication, digital twins of the radio environment. Target: 2030.
- Bioelectronics
- Brain-computer interfaces (Neuralink, BrainGate), electronic skin, implantable sensors, biocompatible power harvesting. The merger of electronics and biology.
- 30 / 32

### Slide 31: EE Subdisciplines Overview

- AreaCore TopicsCareer Examples
- Power SystemsGeneration, transmission, distribution, protectionUtility engineer, grid operator
- ElectronicsAnalog/digital circuits, PCB designHardware engineer, IC designer
- CommunicationsModulation, coding, networks, RFTelecom engineer, 5G architect
- ControlFeedback, stability, roboticsAutomation engineer, roboticist
- Signal ProcessingDSP, image/audio/radar processingAudio engineer, radar scientist
- Computer EngineeringProcessors, FPGA, embeddedFirmware engineer, chip architect
- PhotonicsFiber optics, lasers, imagingOptical engineer, LiDAR designer
- Power ElectronicsConverters, motor drives, EVsEV drivetrain engineer
- 31 / 32

### Slide 32: Further Reading

- Essential Textbooks
- Fundamentals of Electric Circuits -- Alexander & Sadiku. Standard intro.
- The Art of Electronics -- Horowitz & Hill. The practical electronics bible.
- Microelectronic Circuits -- Sedra & Smith. Semiconductor electronics.
- Signals and Systems -- Oppenheim & Willsky. Signal processing foundation.
- Electric Machinery -- Fitzgerald, Kingsley, Umans. Motors and generators.
- Broader Reading
- The Innovators -- Walter Isaacson. History of computing from Ada Lovelace to the internet.
- Empires of Light -- Jill Jonnes. The War of Currents (Edison, Tesla, Westinghouse).
- The Idea Factory -- Jon Gertner. Bell Labs and the age of American innovation.
- Chip War -- Chris Miller. Geopolitics of semiconductors.
- IEEE Spectrum: Monthly magazine covering EE frontiers.
- End of presentation. Electrical engineering underpins modern civilization -- from the power grid that keeps the lights on to the transistors that process your thoughts into digital reality.
- 32 / 32


## Related Decks

- [Aerospace Engineering](https://shipslides.com/d/engineering-aerospace-engineering)
- [Biomedical Engineering](https://shipslides.com/d/engineering-biomedical-engineering)
- [Bridges of the World](https://shipslides.com/d/engineering-bridges)
- [Chemical Engineering](https://shipslides.com/d/engineering-chemical-engineering)