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Constant Voltage Source

A voltage source is generally identified as any device that generates an electromotive force between its terminals or derives a secondary voltage from a principal source of the electromotive force.A perfect voltage source refers to a circuit element where the voltage across it doesn’t have any relation with the current through it.

A voltage source is generally identified as any device that generates an electromotive force between its terminals or derives a secondary voltage from a principal source of the electromotive force. The major source of voltage can supply energy to a circuit while the secondary voltage disperses energy from a circuit. For instance a common battery is a primary source while a voltage regulator is the secondary source.

A perfect voltage source refers to a circuit element where the voltage across it doesn’t have any relation with the current through it. The concept exists only in mathematical models of circuits. If there is any scope of voltage across an ideal source being précised without depending on any variable in a circuit then it is known as an independent voltage source. On the other hand, if the voltage across a perfect source is calculated by some other voltage or current in a circuit, it is called a dependent or controlled voltage source.

A constant voltage source consists of a circuit along with an operational amplifier for supplying an output voltage to a load. In addition there is a feedback circuit for feeding back the output voltage to the equipped amplifier.

They also possess a compensation circuit along with a second resistor, a second inductance unit and a second bypass capacitor, one end of each of the second resistorFree Articles, the second inductance unit and the second bypass capacitor being attached to each other.    

The other end of the second resistor is attached to an end of the second inductance unit close to the circuit. While the other end of the second inductance unit is joined to a load side end of the first inductance unit and the other end of the second bypass capacitor is attached to the constant voltage unit.

Source: Free Articles from ArticlesFactory.com

ABOUT THE AUTHOR


Transformer - Amp-Line Corp. manufactures general & special purpose power amplifiers and power sources in audio frequency and ultra-sound frequency (RF) ranges. These products include constant current sources, constant voltage sources, frequency converters and plasma power supplies.



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