A Zener regulator has to handle supply voltage variation from 19.5V to 22.5V. Find the magnitude of regulating resistance, if the load resistance is 6KΩ. The Zener diode has the following specifications: breakdown voltage =18V, (IZ)Min=2µA, maximum power dissipation=60mW and Zener resistance =20Ω.

Application of Diodes include: Half-wave and full-wave rectifier, bridge and voltmeter rectifier, inductor and capacitor filters, l-section filters, clc filters and voltage regulation. Diodes have many applications, including: Rectification: Converting alternating current (AC) power to direct current (DC) Demodulation: Used in radio receivers Logic: Used as logic gates or clampers in computer systems Temperature sensors: Can be used as temperature sensors Photodiodes: Used in logic circuits, detection circuits, character recognition circuits, and for measuring light intensity Zener... Show more

Application of Diodes include: Half-wave and full-wave rectifier, bridge and voltmeter rectifier, inductor and capacitor filters, l-section filters, clc filters and voltage regulation.

Diodes have many applications, including:
Rectification: Converting alternating current (AC) power to direct current (DC)
Demodulation: Used in radio receivers
Logic: Used as logic gates or clampers in computer systems
Temperature sensors: Can be used as temperature sensors
Photodiodes: Used in logic circuits, detection circuits, character recognition circuits, and for measuring light intensity
Zener diodes: Used for voltage regulation, surge suppressors, switching applications, and clipper circuits
Silicon diodes: Used in signal detection circuits to detect and rectify weak signals 

Other applications of diodes include: Limiters, Gates, Phase detectors, Gain control circuits, Parameter amplifiers.

Related:

Electronic Devices and Circuits Practice Test: Semiconductor-Diode Characteristics 

Electronic Devices and Circuits Practice Test: Diodes

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