Diodo Varactor
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- Varactor diode
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Amazon.com : Varactor Diodes
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Varactor diode
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Varactor diode, varactor diode Suppliers and Manufacturers at Alibaba.com
Varactor diodes, also called varicaps, are semiconductor devices that behave like variable capacitors. When reverse-biased, they have a capacitance that varies with an applied voltage. They are most often used in devices that require electronic tuning, such as radios. Significance Varactor diodes are commonly found in communication equipment where electronic tuning is a necessity. They are an important component of radio frequency or RF applications. Identification In addition to being referred to as varicaps, varactors are also known as voltage-variable capacitors and tuning diodes. Their symbol is that of a diode placed directly next to a capacitor. In appearance, they may look like capacitors or regular diodes. Operation The capacitance of a varactor decreases when the reverse-voltage gets larger. They are usually placed in parallel with an inductor in order to form a resonant frequency circuit. When the reverse voltage changes, so does the resonant frequency, which is why varactors may be substituted for mechanically tuned capacitors.
Diodo varactor 1
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The varicap diode or varactor diode provides a way or having a voltage controlled variable capacitance in a circuit. Varactor / Varicap Diode Tutorial Includes: Varactor / varicap Abrupt & hyperabrupt varactors Varactor specifications (datasheet) Varactor diode circuits Other diodes: Diode types Varactor or varicap diodes are used mainly in radio frequency or RF circuits to provide voltage controlled variable capacitance. These electronic componenta can be used in a whole variety of ways where a capacitance level needs to be controlled by a voltage. Not only can varactor diodes be used for analogue control of a voltage, such as in a phase locked loop, but it can also be used in conjunction with microprocessors where a voltage can be generated digitally and then converted to an analogue voltage to control the diode by using a digital to analogue converter, ADC. In fact the applications for varactor diodes are almost limitless and they are used in a host of different circuits for a variety of different circuit uses, for general electronic circuit design as well as RF design.
February 20, 2021, 4:14 am