Can we use transistor as a voltage regulator?

The transistor works as a variable resistor regulating its collector emitter voltage in order to maintain the output voltage constant. The figure below shows the transistor series voltage regulator. With the input operating conditions, the current through the base of the transistor changes.

Which transistor can be used as voltage regulator?

1. Zener Controlled Transistor Voltage Regulator. A zener controlled voltage regulator is used when the efficiency of a regulated power supply becomes very low due to high current. There are two kinds of zener controlled transistor voltage regulators.

What do voltage regulators do?

A voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions. It compares the output voltage with a precise reference voltage and adjusts the pass device to maintain a constant output voltage.

Does a transistor change voltage?

Originally Answered: Does a transistor amplify current or voltage? Transistor is a current controlled current device. So it amplifies current and not voltage. But it is also impossible to introduce current in a transistor without any voltage.

What happens if there is no voltage regulator?

Basically, the voltage regulator controls field current through the rotor, inside the alternator, in order to control alternator output. Without a voltage regulator, an alternator may put out up to 250 volts. This is enough to destroy the car’s battery and electrical system.

What is regulator and types of regulator?

Basically, there are two types of Voltage regulators: Linear voltage regulator and Switching voltage regulator. There are two types of Linear voltage regulators: Series and Shunt. There are three types of Switching voltage regulators: Step up, Step down, and Inverter voltage regulators.

How transistor is different from voltage regulator?

A voltage regulator is basically an integrated circuit that has several transistors within it, while a mosfet is exactly a single transistor. A MOSFET is a single transistor that will be able to provide a regulated voltage if used inside of a whole voltage regulator circuit (or IC).

What are the two basic types of voltage regulators?

There are two main types of voltage regulators: linear and switching. Both types regulate a system’s voltage, but linear regulators operate with low efficiency and switching regulators operate with high efficiency.

Does transistor amplify voltage or current?

A transistor can amplify current, or voltage, or both, depending on how it is configured in the circuit. A bipolar transistor configured as ‘Common Collector’ amplifies current, but not voltage. When configured as ‘Common Base’ it amplifies voltage, but not current.

Do transistors control voltage or current?

The Field Effect Transistor is a voltage controlled device, because the drain current depends on the negetive voltage ( by convention) applied at the gate. The BJT (Bipolar Junction Transistor), on the other hand, is a current controlled device, since the collector current depends on the base current.