Voltage Regulation Using Zener Diode

The voltage point at which the voltage across the zener diode becomes stable is called the zener voltage vz and for zener diodes this voltage can range from less than one volt to a few hundred volts. Zener diode stablized power supply probably the simplest type of voltage regulator is the zener shunt stabilizer which works by using a basic zener diode for the regulation as demonstrated in figure below.

Solved Numerical Problem On Zener Diode As Voltage Regulator 1

Using A Zener Diode For Voltage Regulation

Zener Diode Voltage Regulator Circuit Diagram Voltage

A regular diode will not work effectively as a zener diodeand vice versa.

Voltage regulation using zener diode. A zener operating in breakdown acts as a voltage regular because it maintains a nearly constant voltage across its terminals over a specified range of reverse current values. Zener diodes are widely used as shunt voltage regulators to regulate voltage across small loads. By connecting it in the right way in a circuit it can act as a voltage regulator to regulate how much voltage it feeds to a device.

A zener diode is a very useful device for regulating voltage. Zener diodes have a sharp reverse breakdown voltage and breakdown voltage will be constant for a wide rang of currents. The ability to keep the reverse voltage across its terminals essentially constant is the key feature of the zener diode.

The diodes used as voltage regulators are called zener diodes. The zener diode compensates for the variation in load current. The zener diodes have a voltage rating equivalent to the intended output voltage that may be closely match the desired output value.

Combined with the right resistor fine control over both the voltage and the supply current. Note that in a transistor the current required by the base is only 1hfe times the emitter to collector current. The zener diode with its accurate and specific reverse breakdown voltage allows for a simple inexpensive voltage regulator.

This type of arrangement of the circuit provides safety for equipment connected to terminals. A series resistancer is placed between a higher voltagev in and it is used to limit the current to the load and zener diode. Thus we will connect the zener diode parallel to the load such that the applied voltage will reverse bias it.

The zener diode is used to regulate the base voltage which leads to regulated emitter voltage. So a low power rated zener diode can regulate the base voltage of the bjt that can pass a huge current through it. The key in using the zener diode as voltage regulator is that as long as the zener diode is reverse biased the flow of current greater than a few micro amperes must be accompanied by a voltage greater than the zener voltage.

Voltage Regulators Linear Shunt And Zener Diode

Voltage Regulation Using Zener Diodes

Zener Diode And Its Functionality As Voltage Regulator

Electronic Circuits Regulators Tutorialspoint

Voltage Regulator Circuits For Model Trains Model Train

Transistors Voltage Regulation Part Xvi Tank Engineering

Operation Of Zener Diode Voltage Regulator Instrumentation Tools

Zener Diode Voltage Regulator Circuit

Solved Consider The Voltage Regulator Using A Zener Diode

Zener Diode Dc Voltage Regulator

Transistor Zener Diode Regulator Circuits

Zener Diode Basic Operation And Applications