Voltage and Current Source

Source

Is a device which converts mechanical, chemical, thermal or some other form of energy into electrical energy

Source

An active network element meant for generating electrical energy.

Voltage Source

A two-terminal device whose voltage at any instant of time is constant and is independent of the current drawn from it.

Ideal Voltage Source

Such a voltage source is called an ___________ and have zero internal resistance. Practically an _________ cannot be obtained

Practical Voltage Source

Sources having some amount of internal resistances

Current Source

Are further categorized as Ideal and Practical current source

Ideal Current Source

A two-terminal circuit element which supplies the same current to any load resistance connected across its terminals.

independent, Voltage

It is important to keep in mind that the current supplied by the current source is __________ of the ________ of source terminals.

(Ideal) Independent Source

An active element that provides a specified voltage or current that is completely independent of other circuit elements.

Ideal Independent Voltage Source

Delivers to the circuit whatever current is necessary to maintain its terminal voltage.

Ideal dependent (or controlled) source

An active element in which the source quantity is controlled by another voltage or current.

4 Types of Dependent Sources

A voltage-controlled voltage source (VCVS). A current-controlled voltage source (CCVS). A voltage-controlled current source (VCCS). A current-controlled current source (CCCS)

Voltage-Controlled Voltage Source

Current-Controlled Voltage Source

Voltage-Controlled Current Source

Current-Controlled Current Source