3-4) Varactor Diode

Question 1

Where are varactor diodes commonly used?

Answer 1

Varactor diodes are commonly used in parametric amplifiers, filters, oscillators and frequency synthesizers.

Varactor diodes are mostly utilized as voltage-controlled capacitors.

Question 2

What is variable capacitance in a varactor?

Answer 2

Variable capacitance in a varactor is a function of the voltage impressed on its terminals. In electronics, varactor diodes are mostly utilized as voltag-controlled capacitors.