Nov 11, 2024  
Catalog 2024-2025 
    
Catalog 2024-2025

ELT 133 Electronic Concepts 3


Lecture Hours: 3
Lab Hours: 3
Credits: 4

Covers electric circuit theory and analysis applicable to passive RLC reactive circuits. Includes transformers, polyphase AC, resonance, passive filters, and other RLC series/parallel circuit applications. Applies fundamental AC/DC concepts developed in ELT 131  and ELT 132 . Promotes and supports sustainable and green technologies.

Prerequisite: ELT 132  with a grade of C or better; or consent of instructor.
Student Learning Outcomes:
  1. Apply the reactive circuit analysis techniques, learned in ELT 131 and ELT 132, to transformers and passive/parallel RLC circuit applications. 
  2. Construct laboratory circuits to verify lecture theories. 
  3. Apply frequency sweep techniques to circuits.


Content Outline
  • Transformers  
    • Mutual induction and transformer action  
      • Step up/down  
      • Turns ratio, voltage transformation  
      • Power transfer efficiency  
      • Current transformation ratio  
      • Core types  
    • Types  
      • Power  
        • Isolation/safety  
        • Autotransformers  
        • Constant voltage  
      • Audio  
        • Constant voltage  
        • Constant impedance  
        • Interstage  
        • Output stage  
      • R.F.  
    • Transformer connections  
      • Winding polarity  
      • Series/parallel  
      • Multiple and tapped windings  
    • Impedance characteristics  
      • Reflected  
      • Matching  
    • Transformer ratings, losses, frequency effects, loading  
  • Introduction to Polyphase Systems  
    • Three-phase AC generation  
      • Delta connections - voltage/current relationships  
      • Wye connections - voltage/current relationships  
      • Four-wire systems  
      • Advantages of three-phase systems  
    • Three-phase loads  
    • Three-phase transformers  
      • Delta-Delta, Wye-Delta, Delta-Wye, Wye-Wye  
      • Phasing polarities  
    • Power and power measurement in polyphase systems  
  • RLC Circuit Analysis  
    • Series RLC circuits  
      • Frequency effects on voltage, impedance  
      • Waveform and phasor relationships  
    • Parallel RLC circuits  
      • Frequency effects on current, admittance  
      • Waveform and phasor relationships  
    • Complex RLC circuits  
      • Series-parallel RLC circuit analysis  
      • Practical inductors in parallel RLC circuits  
  • Resonance  
    • Series resonant circuits  
      • RC Circuits  
      • LC Circuits  
      • Circuit “Q” and Selectivity  
    • Parallel resonant circuits  
      • RC Circuits  
      • LC Circuits  
      • Circuit “Q” and Damping  
  • Filters  
    • Terminology  
    • Single and multiple stage filters  
      • RC low pass and high pass  
      • RL low pass and high pass  
      • RC and RL band pass  
      • RC and RL band reject  
    • Phase shifting characteristics  
  • Bridge Circuits  
    • AC bridge types  
    • Formulas and analysis methods  
    • Bridges as filters  
  • Sinusoidal and Nonsinusoidal Waveforms and Harmonics  
    • Harmonics  
    • Waveform synthesis - combining/adding harmonics  
    • Waveform analysis - harmonics in step/ramp functions  
    • Fourier series  
    • Spectrum analyzers  
  • Relation to Sustainable and Green Technologies