Zener Diode Circuit Diagram

Zener diode voltage regulator circuit. The zener diode is employed in reverse biasing.

Why Zener Diode Is Used As A Regulator

The zener diode is a type of diode which operates under the reverse bias that breakdowns when the applied voltage reaches a particular reverse bias voltage or knee voltage.

Zener diode circuit diagram. Zener diode circuit to avoid overvoltage. The circuit diagram of the zener diode is shown in the figure below. When selecting zener diode voltage one should remember that emitter voltage will be lesser than zener voltage by an amount equal to base emitter voltige minus 06 volts for silicon transistor.

For the proper designing of the regulator we should know unregulated input voltage range. The zener diode produces a stable reference voltage across the load which fulfills the criteria of regulator requirement. It allows the current to flow as like a normal pn junction diode when it is forward biased and block the reverse flow of current during the reverse bias up to the breakdown voltage.

Another form of zener diode circuit is an overvoltage protection circuit. A clipping circuit which clips the peaks of waveform at approximately the zener voltage of the diodes. Zener diode voltage regulator circuit diagram in the above circuit diagram excess voltage vin vz will drop across rs thus by limiting the current through zener.

One more shape of zener diode circuit is overvoltage shield circuit. Resistor value ohms v1 v2 zener current load current the above diagram is of a shunt regulators because the regulating element is parallel to the load element. This zener diode voltage regulator circuit uses a zener diode to establish a reference voltage.

Thank you and my name is emmanuel you can contact me through this number electronic is sweet ooooooooo. The reverse biasing means the n type material of the diode is connected to the positive terminal of the supply and the p type material is connected to the negative terminal of the supply. Zener diodes have voltage values from less than 2 volts to several hundred volts and they can dissipate power ranging from 025 to 50 watts or more.

This zener diode circuit uses the zener diode in a slightly different way detecting the breakdown current through the diode once a certain voltage has been reached. Zener diode is a simple component to understand in a electronic components and it work normal in your circuit diagram the time you used it. When connected in parallel with a variable voltage source so that it is reverse biased a zener diode conducts when the voltage reaches the diodes reverse breakdown voltage.

This semiconductor is manufactured in a wide variety of voltages and powers. Zener diodes are widely used as voltage references and as shunt regulators to regulate the voltage across small circuits. The circuit of figure below has two zeners connected series opposing to symmetrically clip a waveform at nearly the zener voltage.

Zener Diode As Voltage Regulator Electrical Engineering