FUNDAMENTALS OF ELECTRONICS B

Linearisation techniques of electronic circuits.
Analog and digital signal. Linearity condition and linear distortion. Small-signal equivalent circuits and linearisation. Small-signal equivalent of diode, BJT in active region and MOS in saturation.

2-port linear amplifiers and network functions
Linear amplifiers parameters: open-circuit voltage gain, short-circuit current gain, output and input resistance, trans-resistance and trans-conductance. Loaded voltage/current gain and effect of the input resistance.

Single-transistor BJT amplifiers
Common-emitter amplifier: biasing techniques and small-signal DC analysis. Common-collector and common-base amplifiers. Multi-stage amplifiers.
Differential amplifier with resistive load.
High-frequency analysis of C.E. and C.C. Amplifiers: Bode diagrams.

Power amplifiers basics
Large signal operation of C.E. amplifier. Harmonic distortion. Power efficiency: definition. Calculation of efficiency for the class-A, DC coupled C.E. Amplifier. Class A, AB, B and C.

Single-transistor MOS amplifiers
Common-source, common-gate and common-drain: low-frequency analysis.

Active loads.
Common-emitter and common-source amplifier with active load.

Feed-back in amplifiers
Negative and positive feed-back. Partial and total desensitization. Stability in feed-back amplifiers: Bode's rule. Gain-bandwidth trade-off in first-order amplifier with feed-back-

Operational Amplifiers (opamp's)
Opamp's: definition, I/O characteristic, virtual short-circuit. Open-loop transfer function of compensated opamp's. Applications of opamp's: inverting and non-inverting amplifiers, follower, sum-difference amplifier, integrator.

Non-linear circuits
Diode-based rectifier; single sine-wave precision rectifier with opamp.