Modeling and characteriztion of the ideal behavior of amplifiers

Modeling and characteriztion of the ideal behavior of amplifiers#

color coded resistors

Amplifiers: types of amplifiers#

Amplifiers: types

Electronic amplifiers are often used to interface with sensors and actuators. The nature of the input signal of the sensor or the output signal of an actuator, and the pysical operating mechanism of such transducers, tell us which electrical quantity (short-circuit current or open-circuit voltage) needs to be selected at the input port or at the output port of the amplifier.

Presentation

The presentation "Amplifier Types" introduces nine different unilateral amplifier types, based on the sensing and the driving properties of the input port and the output port, respectively.

Presentation in parts

Amplifier Types (parts)

Video

Amplifier Types (12:57)

Study

Chapter 2.2

Amplifiers: port isolation configurations

The functional behavior of the amplifier has been modeled while omitting the power port.

Presentation

The presentation "Amplifiers: port isolation configurations" gives types of amplifiers, based on intended connections between the amplifier ports.

Presentation in parts

Amplifiers: port isolation configurations (parts)

Video

EE3C11 lecture 3 Amplifier Port Isolation

Study

Chapter 2.2.2, 2.2.3

Amplifiers: characterization and modeling of ideal behavior#

Amplifiers: modeling of the ideal behavior

Conceptually, amplifiers are intended to behave as linear, time-invariant systems. Although the supply of power is essential for their operation, the power port can be omitted when considering its functional operation only.

Presentation

In the presentation "Amplifiers: modeling ideal behavior" we will elucidate the use of the transmission-1 two-port representation for modeling of the functional (conceptual, or ideal) behavior of amplifiers. The use of these parameters results in clear design conclusions for making the source-to-load transfer independent of the source impedance and the load impedance. This is of particular interest if the voltage-current relation of the source or the load has a (partly) unpredictable character.

Presentation in parts

Amplifiers: modeling ideal behavior (parts)

Videos

  1. Amplifiers characterization and modeling of ideal behavior Two-port Model (12:09)

  2. Amplifiers characterization and modeling of ideal behavior Port Impedances (4:19)

  3. Definition of Available Power Gain (3:12)

  4. Amplifiers Generalized Two-port model (2:17)

Study

Chapter 2.3