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May 14, 2025
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2025-2026 Workforce Education Catalog
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UELE 121 - Solid State Devices and Circuits I Theory of operation of semiconductor diodes and transistors. Bipolar junction transistor biasing and load-line analysis. Alternating Current (AC) equivalent circuits applied to small signal amplifiers. Characteristics of large signal and power amplifiers
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Course Learning Outcomes:
- Define the following electronic terms: intrinsic semiconductor, n-type material, p-type material, doping, covalent bonding, pentavalent atoms and trivalent atoms.
- Describe the operation of both a forward and reverse-biased diode.
- Analyze small and large signal diode circuits.
- Describe the functions of the base, emitter, and collector of a bipolar transistor, and how they are biased.
- Identify and describe the various forms of transistor biasing and how an operating point is selected.
- Solve for all DC voltages, and currents in the three basic transistor amplifier configurations (Common Emitter (CE), Common Base (CB), and Common Collector (CC).
- Calculate input and output impedances and voltage gain for a given configuration, using the AC model of the three basic transistor amplifier configurations.
- Explain the concept of the transconductance and its effect on the Field Effect Transistor amplifier gain.
- Describe the operation of common-source, common-drain, and common-gate amplifiers and draw schematic diagrams for each.
- Apply the scientific method in inquiry and deduction relating the laws, theories, and axioms of solid-state devices to specific laboratory experiments.
- Explain the concept of differential versus common-mode signals.
- Analyze a differential amplifier, computer gain, input impedance, and common-mode rejection ratio (CMRR).
- Explain the concept of open-loop vs closed-loop responses of an amplifier and relate to amplifier stability.
- Calculate voltage gains, input and output impedance, and bandwidths for inverting and non-inverting operational amplifier (OP AMP) circuits
Outline:
- Introduction
- Semiconductor theory
- Conduction in crystals
- Doping
- Diode Theory
- The unbiased diode
- Forward bias
- Reverse bias
- Diode approximations
- Diode Circuits
- The half-wave rectifier
- The full-wave rectifier
- The bridge rectifier
- The limiter
- The DC clamper
- Special-Purpose Diodes
- Zener diodes
- Optoelectronic devices
- The Schottky diode
- Varactor diodes
- Bipolar Transistors
- Basic concepts
- Forward-reverse bias
- The CE connection
- Transistor characteristics
- DC load lines
- The transistor current source
- Transistor Biasing Circuits
- Base bias
- Emitter-feedback bias
- Collector-feedback bias
- Voltage-divider bias
- CE Amplifiers
- Coupling and bypass capacitors
- Superposition theorem for amplifiers
- AC resistance of the emitter diode
- The AC model of a CE stage
- The swamped stages
- Cascaded stages
- CC and CB Amplifiers
- The CC amplifier
- The AC model of an emitter follower
- The common-base amplifier
- Field Effect Transistor Amplifiers
- Transconductance
- The CS amplifier
- The CD amplifier
- The CG amplifier
- Other applications
- OP-AMP Theory
- The differential amplifier
- DC analysis of a differential amplifier
- AC analysis of a differential amplifier
- The operational amplifier
- OP-AMP characteristics
- Frequency Response and Stability
- Basic concepts
- Open-loop response
- Closed-loop response
- Stability considerations
- Linear OP-AMP Circuits
- Negative feedback
- Non-inverting voltage amplifiers
- The inverting voltage amplifier
- The summing amplifier
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