Line And Load Regulation Of Zener Diode Experiment Pdf
File Name: line and load regulation of zener diode experiment .zip
It has higher gain, frequency, and voltage ratings.
The Zener diode is like a general-purpose signal diode. When biased in the forward direction it behaves just like a normal signal diode, but when a reverse voltage is applied to it, the voltage remains constant for a wide range of currents. Avalanche Breakdown : There is a limit for the reverse voltage. Reverse voltage can increase until the diode breakdown voltage reaches. This point is called Avalanche Breakdown region.
A Zener diode is a special type of diode designed to reliably allow current to flow "backwards" when a certain set reverse voltage, known as the Zener voltage , is reached. Zener diodes are manufactured with a great variety of Zener voltages and some are even variable. Diodes with a higher Zener voltage have a more gradual junction and their mode of operation also involves avalanche breakdown. Both breakdown types are present in Zener diodes with the Zener effect predominating at lower voltages and avalanche breakdown at higher voltages. Zener diodes are widely used in electronic equipment of all kinds and are one of the basic building blocks of electronic circuits.
Zener diodes are a special kind of diode which permits current to flow in the forward direction. What makes them different from other diodes is that Zener diodes will also allow current to flow in the reverse direction when the voltage is above a certain value. This breakdown voltage is known as the Zener voltage. In a standard diode, the Zener voltage is high, and the diode is permanently damaged if a reverse current above that value is allowed to pass through it. Zener diodes are designed in a way where the Zener voltage is a much lower value. There is a controlled breakdown which does not damage the diode when a reverse current above the Zener voltage passes through a Zener diode.
AIM: To setup and study a zener diode shunt regulator and to plot its line and load regulation characteristics. COMPONENTS REQUIRED: Zener diode, resistor.
Load regulation is the measure of the ability of a power supply to maintain a constant output voltage despite changes in output current or load. A good load regulation ensures that the power supply will deliver a required and stable voltage to the circuit or system. When choosing a power supply, it is important to pay attention to the load regulation as specified in the data sheets. The power supply should be able to supply a constant and reliable power to within the specified load current range.
Zener diode as voltage regulator experiment pdf This may. While doing the experiment do not exceed the readings of the diode. Required Graph What makes them different from other diodes is that Zener diodes will also allow current to flow in the reverse direction when the voltage is above a certain value.
To study the I-V characteristics of a zener diode and its application as a voltage regulator in a DC power supply and determine the line and load regulations. A Zener diode is different it is a silicon diode that the manufacturer has optimized for operation in the breakdown region. It is used to build voltage regulator circuits that hold the load voltage almost constant despite large change in line voltage and load resistance. Figures below show the symbol of Zener diode and its operating region. These diodes can operate in any of the three regions: forward, leakage and breakdown.
Load regulation is the capability to maintain a constant voltage or current level on the output channel of a power supply despite changes in the supply's load such as a change in resistance value connected across the supply output. Load regulation of a constant-voltage source is defined by the equation: .
Это его первый выстрел в публичном месте. Смит был прав. Между деревьев в левой части кадра что-то сверкнуло, и в то же мгновение Танкадо схватился за грудь и потерял равновесие.
Двери оказались прямо перед ним, словно приглашая его принять участие в празднестве, до которого ему не было никакого дела.