☑ Diode Varicap Definition

Electronics a semiconductor diode that acts as a voltage dependent capacitor being operated with a reverse bias. Varactor diode definition varactor diode is a p n junction diode whose capacitance is varied by varying the reverse voltage.

Varicap Tutorial

20pcs Bb910 Varactor Diode Varicap To 92s Diode Bb910 Dip Ic

19 A Crystal Radio Receiver

A semiconductor device in which the capacitance is sensitive to the applied voltage at the boundary of the semiconductor material and an insulator.

Diode varicap definition. These diodes are also named as varicap diodes. The word varicap is originated from the combination of word variable and capacitor. It is used for storing the charge.

In electronics a varicap diode varactor diode variable capacitance diode variable reactance diode or tuning diode is a type of diode designed to exploit the voltage dependent capacitance of a reverse biased pn junction. It varies from a few to hundreds of picofarads in certain variable capacitance diodes virtually by a factor of 3 4 in case of variations of several dozen volts in the reverse negative sign current. It is a device whose capacitance changes with the variation in the applied reverse bias potentialit is also known as varicap or voltcap.

Varicap or varactor diodes these are used as voltage controlled capacitors. The varactor diode always works in reverse bias and it is a voltage dependent semiconductor device. Diode an electrical component that allows the flow of current in only one direction.

These are important in pll phase locked loop and fll frequency locked loop circuits allowing tuning circuits such as those in television receivers to lock quickly on to the frequency. This capacitance is the barrier capacity of the p n junction. Varactor or varicap diodes are used mainly in radio frequency or rf circuits to provide voltage controlled variable capacitance.

The diode whose internal capacitance varies with the variation of the reverse voltage such type of diode is known as the varactor diode. The most common type of diode uses a p n junction in which one material n has electrons as charge carriers next to a second material p with holes places depleted of electrons as charge carriers. This can be used in a whole variety of ways where a capacitance level needs to be controlled by a voltage.

Variable reactance or varactor. A varactor diode is a pn junction diode that is especially operated in reverse biased mode. Varactor diode is a one kind of semiconductor microwave solid state device and the applications of this diode mainly involve in where variable capacitance is preferred which can be accomplished by controlling voltage.

Before going to varactor diode lets first take a look at the capacitor. Varicap a condenser in the form of a semiconductor diode whose capacitance depends nonlinearly on the voltage applied to it.