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Q: How the capacitance of a varactor diode can be changed?
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What is verector diode in electronics?

I think you you are asking about varactor diode. varactor means variable capacitor. varactor diode is a p-n junction diode which provide a capacitance across it subjected to applied forward and reverse bias. means it provide variable capacitance which depends on the applied reverse voltage(mostly varactor diode works on reverse voltage).They are also known as varicap


Which diode is used in frequency tuning application?

The varactor diode is used in frequency tuning applications. Its effective capacitance is a function of the reverse bias voltage across it.


Is crystal oscillator used in Varactor diode modulator?

YES


How varactor diode used as parametric amplifier?

A varactor diode is most commonly used as the variable reactor. The varactor is a semiconductor pnjunction diode, and its junction capacitance is varied by the application of a steady signal from a local microwave oscillator, called the pump. Amplification of weak signal waves occurs through a nonlinear modulation or signal-mixing process which produces additional signal waves at other frequencies. This process may provide negative-resistance amplification for the applied signal wave and increased power in one or more of the new frequencies which are generated.


What are the different parts of varactor diode?

The varactor diode is a semiconductor diode but in this kind, the capacitance is supposed to vary according to the applied voltage. It has an exponent factor that bears a negative fraction value.

Related questions

What is verector diode in electronics?

I think you you are asking about varactor diode. varactor means variable capacitor. varactor diode is a p-n junction diode which provide a capacitance across it subjected to applied forward and reverse bias. means it provide variable capacitance which depends on the applied reverse voltage(mostly varactor diode works on reverse voltage).They are also known as varicap


Explain the use of a varactor diode in a parallel resonance circuit?

Short answer: By using a varactor diode as the capacitance in a parallel resonant ckt, by changing the reverse bias voltage you change the value of capacitance which in turn changes the resonant frequency. This makes a tuneable resonant ckt.


What diode is used as voltage controlled capacitor?

It is called a varactor or a varicap diode. Its capacitance varies nonlinearly with the reverse voltage applied to its terminals.


Which diode is used in frequency tuning application?

The varactor diode is used in frequency tuning applications. Its effective capacitance is a function of the reverse bias voltage across it.


Application of varactor diode?

It includes RF design , parametric amplification ,fm, harmonic generators, voltage controlled oscillators ,in radio ,tv,cellular and wireless receivers ,and in electronic tuning .. That's it. . .


What type of diode is used as a variable capacitor?

varactor diode is a correct answer


Is crystal oscillator used in Varactor diode modulator?

YES


Who invented varactor diode?

invented by Arthur Uhlir and A. Bakanowski


How varactor diode used as parametric amplifier?

A varactor diode is most commonly used as the variable reactor. The varactor is a semiconductor pnjunction diode, and its junction capacitance is varied by the application of a steady signal from a local microwave oscillator, called the pump. Amplification of weak signal waves occurs through a nonlinear modulation or signal-mixing process which produces additional signal waves at other frequencies. This process may provide negative-resistance amplification for the applied signal wave and increased power in one or more of the new frequencies which are generated.


What are the different parts of varactor diode?

The varactor diode is a semiconductor diode but in this kind, the capacitance is supposed to vary according to the applied voltage. It has an exponent factor that bears a negative fraction value.


What is the explanation for the Operation of varicap diode?

The capacitance of a varicap diode varies as the reverse voltage to the diode changes. As you increase the reverse voltage, the capacitance decreases. And vice versa.


Why in a diode phase shift does not occur as it possesses diode capacitance?

Phase shift does occur, but the parasitic capacitance of a diode is so tiny compared to the external circuit resistance that it is virtually impossible to observe.