# Amplifier biasing#

## Introduction to biasing#

Principle of amplification

Amplifiers can be constructed with devices of which the voltage-to-current transfer of the output port depend on their operating point.

**Presentation**

The presentation Principle of amplification shows the way in which a basic amplifier stage can be constructed with a "transresistance" device.

**Study**

Chapter 3

Introduction to amplifier biasing

Biasing is the application of a collection of techniques for fixing the electrical operating conditions of electronic devices, and deriving the required bias voltage and current sources from the power supply source(s).

**Presentation**

The presentation "Principle of biasing" shows the way in which bias sources fix the devices' operating point, independent of the (passive) DC termination at the input port and the output port of the amplifier.

**Presentation in parts**

**Study**

Chapter 3

Biasing of operational amplifiers

Operational amplifiers are commonly used as controllers in feedback circuits. In order to operate, they should be biased properly.

**Presentation**

The presentation "Biasing of operational amplifiers" shows the biasing quantities that should establish the proper operating conditions for operational amplifiers.

**Presentation in parts **

Biasing of operational amplifiers (parts)

**Video**

EE3C11 lecture 10: Biasing of operational amplifier circuits.

**Study**

Chapter 8

## Biasing example#

Biasing example

**Presentation**

The presentation "Amplifier Biasing Example" presents a stepwise approach to the design of the biasing circuitry of an amplifier.

**Presentation in parts**

Amplifier Biasing Example (parts)

**Video**

EE3C11 lecture 10: Amplifier Biasing Example.

**Study**

Chapter 9.1, 9.2

Analysis and budgeting of biasing errors

**Presentation**

The presentation "Analysis and budgeting of biasing errors" presents simplified statistical techniques for budgeting of biasing errors.

**Presentation in parts**

Analysis and budgeting of biasing errors (parts)

**Video**

EE3C11 lecture 10: Analysis and Budgeting of Biasing Errors.

**Study**

Chapter 9.3

Reduction of biasing errors

**Presentation**

The presentation "Reduction of biasing errors" discusses the application of error-reduction techniques for obtaining improved biasing accuracy and stability. An example of negative feedback biasing will be given.

**Presentation in parts**

Reduction of biasing errors (parts)

**Video**

EE3C11 lecture 12: Reduction of biasing errors.

**Study**

Chapter 9.4