Transistor Series And Shunt Voltage Regulator Pdf

transistor series and shunt voltage regulator pdf

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Transister Series and Shunt Voltage Regulators

The next and the last stage before load, in a power supply system is the Regulator part. Let us now try to understand what a regulator is and what it does. The part of electronics that deal with the control and conversion of electric power can be termed as Power Electronics. A regulator is an important device when it comes to power electronics as it controls the power output. For a Power supply to produce a constant output voltage, irrespective of the input voltage variations or the load current variations, there is a need for a voltage regulator. A voltage regulator is such a device that maintains constant output voltage, instead of any kind of fluctuations in the input voltage being applied or any variations in current, drawn by the load. The following image gives an idea of what a practical regulator looks like.

The Web This site. Shunt regulators are widely used because they are cheap, effective and simple. It is unusual however, to find a shunt regulator used as the main regulating circuit in a large power supply. Shunt regulation is only really suitable, at reasonable cost, for relatively small currents and a range of fixed, usually fairly low voltages. This is due to a disadvantage of shunt regulation, which is that a regulation current flowing through the zener diode must always be flowing in addition to the load current.

Shunt Voltage Regulator: shunt regulator

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voltage regulators. Zener Controlled Transistor Series Voltage Regulator The image below shows the circuit diagram of a shunt voltage regulator. The circuit.

Transistor Series Voltage Regulator

Under such conditions a Zener controlled transistor is always used for maintaining output voltage constant. Basically there are two types of Zener controlled transistor voltage regulators. They are.

Transister Series and Shunt Voltage Regulators

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Aquilino T.


The shunt regulator operates by maintaining a constant voltage across its terminals and it takes up the surplus current to maintain the voltage across the load.

Leuco O.


Under such conditions a Zener controlled transistor is always used for maintaining output voltage constant.

Exal N.


The series linear regulator provides a high level of performance, especially when low noise, ripple and transients are required in the regulated output.