Transistor Series And Shunt Voltage Regulator Pdf


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transistor series and shunt voltage regulator pdf

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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. One of the most common examples of the shunt regulator is the simple Zener diode circuit where the Zener diode acts as the shunt element. As such the shunt voltage regulator is an essential element within linear power supply technology.

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. This circuit is called a series regulator because collector and emitter terminals of the transistor are in series with the load, as illustrated in the figure. This circuit is also called an emitter follower voltage regulator because transistor Q is connected in emitter follower configuration.

Series Voltage Regulator: series pass regulator

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.

The Web This site. In Fig. In this circuit however, they are used to provide a stable voltage reference V Z at the base of Tr1. The emitter voltage of Tr1 will be typically about 0. If the output voltage V OUT falls due to increased current demand by the load, this will cause V BE to increase and as a result, current through the transistor from collector to emitter will increase. This will provide the extra current required by the load and thus regulate the output voltage V OUT. If V OUT tends to rise due to reduced current demand by the load, then this will reduce V BE as the emitter voltage rises and the base voltage remains stable due to D Z.

Shunt Voltage Regulator: shunt regulator

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.

In a power supply system, a regulator is an essential component, used to control the output power in power electronics. The power electronics can be defined as the control as well as the conversion of electrical power in the part of electronics. A voltage regulator generates a stable output for the variations in input or load. There are different types of voltage regulators like Zener, series, shunt, fixed positive, IC, adjustable, negative, dual tracking, etc. This article discusses an overview of the transistor series voltage regulator. The series voltage regulator can be defined as a regulator which has the limitations like high dissipation, less efficient, and the transistor voltage and Zener diode voltages are affected once the temperature rises. This voltage regulator circuit design is shown below.


AIM. To design and set up a transistor series regulator and plot. 1. Load current vs output voltage. 2. Input voltage vs output voltage for a constant load current.


Module 2.1

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. This circuit is called a series regulator because collector and emitter terminals of the transistor are in series with the load, as illustrated in the figure.

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Transistor Series Voltage Regulator

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Voltage regulators

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Нуматака почти ничего не замечал. Мысли его были. Он ждал, когда зазвонит прямой телефон, но звонка все не. Кто-то постучал в дверь. - Войдите, - буркнул Нуматака.

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5 Comments

Gooey65
19.04.2021 at 01:14 - Reply

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

Zuria A.
19.04.2021 at 18:54 - Reply

PDF | Voltage Regulators, Line Regulation, Load Regulation, Series and Shunt Regulator, Positive and Negative Voltage Regulators (78XX, to &. The resulting difference voltage causes the transistor Q. 1.

Kelly S.
19.04.2021 at 20:25 - Reply

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

Sven S.
20.04.2021 at 23:42 - Reply

Series Regulator. Shunt Regulator For low current power supplies - a simple voltage regulator that of the transistor series regulator, except that regulation.

Leocadia A.
26.04.2021 at 06:43 - Reply

A voltage regulator generates a stable output for the variations in input or load. There are different types of voltage regulators like Zener, series, shunt, fixed.

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