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25 mar 2024 · Varactor diodes control capacitance with voltage. Learn how they work, their key features, and applications! Perfect for tuning circuits, VCOs, and more. Understand varactor diodes in minutes.
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 p–n junction.
The varactor diode is used in a place where the variable capacitance is required, and that capacitance is controlled with the help of the voltage. The Varactor diode is also known as the Varicap, Voltcap, Voltage variable capacitance or Tunning diode.
12 sty 2024 · What is a Varactor Diode? A varactor diode, also known as a Varicap or volt-cap, is a type of PN junction diode primarily utilized in the reverse-biased mode. It is a device whose capacitance varies with the variation in the applied reverse bias potential.
The varactor diode is used in tuning the circuit to adjust the resonance frequency of the circuit by varying the voltage. The given figure shows a tuning circuit. It is an RLC circuit with two varactor diodes D1 and D2 as variable capacitors C1 and C2 respectively, resistor R and inductor L.
24 lut 2012 · A varactor diode is defined as a reverse-biased p-n junction diode whose capacitance can be varied electrically. These diodes are also known as varicaps, tuning diodes, voltage variable capacitor diodes, parametric diodes, and variable capacitor diodes.
6 lut 2020 · A varactor diode is a simple variable capacitor that allows oscillator circuits and other circuits to be easily tuned by applying a voltage. These diodes have a similar structure as a p-n diode; the structure of a varactor diode is rather simple and illustrates its power as a component with nonlinear reactance.
