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Course overview
This course builds analog electronics understanding from semiconductor device physics through to practical amplifier and op-amp circuit analysis. Students begin with diode characteristics and rectifier circuits, progress through BJT and FET biasing and small-signal models, then work through single-stage and multi-stage amplifier design before finishing with op-amp applications. After completing this course, students can analyze DC bias conditions, compute small-signal gain and impedance, and solve op-amp circuit problems including integrators, differentiators, and oscillators.
Details
Target audience: Second-year and third-year B.Tech ECE students preparing for university exams or GATE, with prior exposure to basic circuit analysis and Ohm's law.
Duration: 12 to 16 hours across 5 modules
Prerequisites
- DC circuit analysis using KVL and KCL
- Basic semiconductor physics: electrons, holes, and doping
- Thevenin's and Norton's theorems
Learning outcomes
- Calculate DC operating point for diode, BJT, and FET circuits given supply voltage and component values
- Apply the h-parameter model to find voltage gain, input impedance, and output impedance of BJT amplifiers
- Determine the small-signal transconductance and drain resistance for a JFET or MOSFET from its characteristics
- Sketch the frequency response of a CE amplifier and identify the 3 dB cutoff frequencies
- Analyze inverting, non-inverting, summing, integrating, and differentiating op-amp circuits
- Design a Zener voltage regulator for a specified load voltage and current range
Modules
- p-n junction theory and diode equation
- Static and dynamic resistance
- Half-wave, full-wave, and bridge rectifier circuits
- Ripple factor and efficiency calculations
- Zener diode voltage regulation
- BJT operation in active, saturation, and cutoff regions
- DC load line and Q-point analysis
- Fixed bias, voltage divider bias, and self-bias circuits
- h-parameter small-signal model
- Stability factor and thermal stability
- JFET characteristics and pinch-off voltage
- MOSFET depletion and enhancement modes
- FET DC biasing configurations
- FET small-signal model and transconductance
- Comparison of BJT and FET amplifier parameters
- CE, CB, and CC amplifier configurations
- Gain, input impedance, and output impedance
- Frequency response and bandwidth
- RC-coupled multi-stage amplifiers
- Feedback amplifier theory and stability
- Ideal op-amp parameters and virtual short concept
- Inverting and non-inverting amplifier configurations
- Summing amplifier, integrator, and differentiator
- Comparators and Schmitt triggers
- Wien bridge oscillator and phase shift oscillator