Int. to Electrical-Electronics Engineering Asst. Prof. Dr. Alper ŞİŞMAN

Electrical Engineering High Voltage – Generation, transmission and distribution of electrical energy Electrical Machines – Transformers – AC/DC. Motors – Step motors – Actuators Electrical Wiring/ Lightning Power Electronics Control / Automation Electric Vehicles

Electronics Electrical circuits – Analog Circuits – Digital Circuits – Active/passive elements Semiconductors – Diode – Bipolar junction Transistor (BJT) – Field effect Transtor (FET) Signal processing – Analog and digital signal processing: Fourier transform, quantization, sampling – Speech processing, digital image processing, data compression – Filtering Telecommunication Biomedical Engineering

High Voltage/ Electric generation Electricity generation is the process of generating electrical power from other sources of primary energy. Methods: Electromagnetic induction, Electrochemistry (Battery), photoelectric effect. Electromag. Inductions: Nuclear, hydroelectric, fossil fuels, wind.

Turbines: All turbines are driven by a fluid acting as an intermediate energy carrier. Many of the heat engines just mentioned are turbines. Other types of turbines can be driven by wind or falling water. Turbines are usually driven by the following carriers: – Steam: Water is boiled by: Nuclear fission, fossil fuels (Efficiency: %60). – Water, Wind. Photovoltaic panels: convert sunlight directly to electricity (%40).

Nuclear Power Plant

Transmission and Distribuiton High voltage AC transmission (<500 kv) – Losses Sub transmission lines (~ kV) – Economical reasons (HV equipment are expensive) User level transmission (~ kV) – Safety Why AC Transmission? – HVDC power production is expensive – The transformers enables simple voltage level conversion in AC HVDC transmission – Low Loss, skin effect (AC) – Synchronization problem of AC transmission – Longer transmission lines – Less environmental problems

Load balancing Three Phase, Why? – Principle of AC motor, Rotating Field – High quality AC-DC conversion

Electrical Machines Transformers & Applications – Voltage level conversion – Isolation DC/AC motors, Generators – AC-DC Servo Motors Step Motors – Angular Position Control

Power Electronics Rectifiers – AC-DC Inverters/Converters – DC-DC (SMPS) – DC-AC Chopper – AC-AC Motor Drivers – H-Bridge

Electronics Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies

Electrical Circuits What are analog&digital signals? Analog circuits Digital Circuits – ADC,DAC Analog vs. Digital (Comparison)

Signal Processing Linear systems Fourier transform – Time and frequency domain Implulse function Applications: – Filtering – Speech processing – İmage processing

Telecommunication