D. De Venuto, Politecnico di Bari1

(a) ideal structure; (b) equivalent circuit.

The series-series feedback amplifier

D. De Venuto, Politecnico di Bari2

Measuring the output resistance Rof of the series-series feedback amplifier.

Output resistance

D. De Venuto, Politecnico di Bari3

Derivation of the A circuit and circuit for the series-series feedback amplifiers. (a) A series-series feedback amplifier. (b) The circuit of (a) with the feedback network represented by its z parameters. (c) A redrawing of the circuit in (b) after neglecting z21.

Derivation of the A and circuits

D. De Venuto, Politecnico di Bari4

Finding the A circuit and for the current-sampling series-mixing (series-series) case.

Summary (2)

D. De Venuto, Politecnico di Bari5

Example

Example

D. De Venuto, Politecnico di Bari6

Ideal structure for the shunt-shunt feedback amplifier.

The shunt-shunt feedback amplifier

D. De Venuto, Politecnico di Bari7

Block diagram for a practical shunt-shunt feedback amplifier.

Block diagram