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  2. Variable capacitor - Wikipedia

    en.wikipedia.org/wiki/Variable_capacitor

    A butterfly capacitor is a form of rotary variable capacitor with two independent sets of stator plates opposing each other, and a butterfly-shaped rotor arranged so that turning the rotor will vary the capacitances between the rotor and either stator equally.

  3. Varicap - Wikipedia

    en.wikipedia.org/wiki/Varicap

    In time, varicap diodes were developed which exhibited large capacitance ranges, 100–500 pF, with relatively small changes in reverse bias: 0–5 V or 0–12 V. These newer devices allow electronically tuned AM broadcast receivers to be realized as well as a multitude of other functions requiring large capacitance changes at lower frequencies ...

  4. Capacitor types - Wikipedia

    en.wikipedia.org/wiki/Capacitor_types

    Capacitors are divided into two mechanical groups: Fixed-capacitance devices with a constant capacitance and variable capacitors. Variable capacitors are made as trimmers, that are typically adjusted only during circuit calibration, and as a device tunable during operation of the electronic instrument. The most common group is the fixed capacitors.

  5. Capacitor - Wikipedia

    en.wikipedia.org/wiki/Capacitor

    Low cost variable capacitors squeeze together alternating layers of aluminum and plastic with a ... 500 pF: 5.0 nF: 50 nF: 500 nF: 5.0 μF: 50 μF: 500 μF m 6.0 0.60 ...

  6. Applications of capacitors - Wikipedia

    en.wikipedia.org/wiki/Applications_of_capacitors

    Capacitors used for suppressing undesirable frequencies are sometimes called filter capacitors. They are common in electrical and electronic equipment, and cover a number of applications, such as: Glitch removal on direct current (DC) power rails; Radio frequency interference (RFI) removal for signal or power lines entering or leaving equipment

  7. Electrolytic capacitor - Wikipedia

    en.wikipedia.org/wiki/Electrolytic_capacitor

    An electrolytic capacitor is a polarized ... typically at least 4 microfarads and rated at around 500 ... 476M 100V implies a capacitance of 47 × 10 6 pF ...

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