Varactor Diode Schematic Symbol

The circuit symbol of the varactor diode is almost similar to the normal p n junction diode.

Varactor diode schematic symbol. Similar to led in which active region is formed by p n. The symbol of the varactor diode is similar to that of the pn junction diode. The symbol of varactor diode is given below. Varactor varicap diode.

The varactor diode is also known as the varicap voltcap voltage variable capacitance or tunning diode. Varactor or vericap diode is a voltage controlled capacitor that has a variable pn junction capacitance. A number of schematic symbols are used to represent a varactor diode in circuit diagrams. The word varicap is originated from the combination of word variable and capacitor.

It is a device whose capacitance changes with the variation in the applied reverse bias potential it is also known as varicap or voltcap. It is used for protecting circuit in reversed bias unidirectional tvs. Varicap diodes are also called varactor diodes and are defined as whose internal capacitance changes with applied reverse bias voltage and possess variable reactance. Of them the three most popular representations are shown below.

Fm transmitters and phase locked loops in radio television sets and cellular telephone. Two parallel lines at the cathode side represents two conductive plates and the space between these two parallel lines represents dielectric. Among these three symbols of a varactor diode the second symbol is more frequently used. A varactor diode also called varicap vvc voltage variable capacitance or tuning diode is a type of semiconductor diode which features a variable voltage dependent capacitance on its p n junction when the device is reversed biased.

Zener diode symbol schottky diode symbol backward diode tunnel diode symbol pin diode led symbol. We know that in the n type. Varactor diode symbol in general it looks like a normal pn junction diode in which one terminal is termed as the cathode and the other terminal is termed as anode. Light emitting diode led.

Diode allows current flow in one direction only left to right. The varactor diode symbol consists of the capacitor symbol at one end of the diode that represents the variable capacitor characteristics of the varactor diodes. Symbol of varactor diode. Allows current flow in one direction but also can flow in the reverse direction when above breakdown voltage.

A varactor diode is a pn junction diode that is especially operated in reverse biased mode. Schottky diode is a diode with low voltage drop.