The common emitter amplifier and emitter follower will be demonstrated using the same amplifier circuit. The main difference between the two will be where the output is taken.

[Paulo]’s calculator will therefore compute most of the characteristics of two class A common emitter/collector amplifiers for specified loads.

This architecture is useful for building stable and device-tolerant BJT Class A amplifiers. The circuit in Figure 1 sinks a constant current (ICE3) through Q3’s collector and emitter.

Have you ever read an amplifier review and encountered the terms Class A, Class A/B or Class D? We explain all.

The differential amplifier circuit (also sometimes referred to as a long tailed pair) here formed by Q2 and Q3 is the signature of an op-amp, and all integrated circuit op-amps will incorporate ...

The system gain is – RC gm . The result is consistent with the common emitter circuit without a degeneration, namely, it is a forward circuit with a gain of – RC gm For larger values of Re , the ...

A simple extension of a previous class A/B differential output amp DI that creates a square-law characteristic.

So Class A designs are, on paper, the best solution for sound quality but have many practical issues, so much so that such designs are relatively rare. Class A/B amplification Rega's Elex Mk4 is a ...