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Nov 11, 2024
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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:
- Apply the reactive circuit analysis techniques, learned in ELT 131 and ELT 132, to transformers and passive/parallel RLC circuit applications.
- Construct laboratory circuits to verify lecture theories.
- 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
- 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
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