Applications for voltage reference and regulation are the main uses for snow diodes. The voltage between their terminals remains almost constant when the applied voltage is beyond a threshold known as the "breakdown voltage" or "Zener voltage." This is because they function in the reverse breakdown zone of their voltage-current characteristic curve.
Here are some common uses of Zener diodes:
Voltage Regulation: Zener diodes are frequently employed in voltage regulator circuits to stabilize the output voltage. By connecting a Zener diode in parallel with a load, the voltage across the load can be maintained at a constant level, even when there are variations in the input voltage or changes in the load resistance.
Voltage Reference: Zener diodes are used as voltage references in electronic circuits to provide a stable and precise voltage level for biasing other components or as a reference for comparison.
Overvoltage Protection: Zener diodes are also utilized for overvoltage protection. When the voltage across a circuit exceeds a certain threshold, the Zener diode conducts heavily, diverting excess current and protecting the rest of the circuit from damage because of overvoltage conditions.
Waveform Clipping and Clamping: Zener diodes can clip or clamp voltage waveforms in electronic circuits. In clipping applications, they limit the amplitude of a waveform by conducting when the voltage exceeds the Zener voltage. In clamping applications, they shift the waveform up or down by the Zener voltage level.
What is a Zener diode used as ?
A Zener diode is often used as a voltage regulator or voltage reference in electronic circuits.
In many electrical systems where accurate voltage regulation or voltage reference is needed, Zener diodes are an essential component.
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