what is the function of capacitor in an electronic circuit?

18 Answers

  • 1 decade ago
    Best Answer

    Think of it as another voltage device in your circuit (similar to a battery). If you connect it to a battery it will charge up to the voltage of the battery. Then, if you remove it from the circuit it will still be charged to the voltage level of the battery!

    A lot of answers by others to your question (so I won't repeat here, but they did miss a Tesla coil) have given you applications for this tiny voltage source...however the useful applications really would be unlimited (just like any voltage source is just limited to the electronic designer's imagination).

    The capacitor's greatest limitations are that it can only store a limited voltage (so make sure when you use one the voltage rating is high enough for your circuit). Arguably one of its benefits is it can release a whole lot of charge at a rapid rate. They are made with a preferably thin non-conducting material (dielectric) between two metal conductors (plates) which will fail under high voltage. This dielectric is where the energy is actually stored (unlike batteries which typically use a chemical reaction...and thus a more sustained voltage as current is drained).

  • 3 years ago

    Capacitor Function

  • john
    Lv 4
    4 years ago

    The functionality of the capacitor is storing the electrical energy.it can save and clear the electric charge.current can flow back and froth in a capacitor.In an AC circuit, capacitor reverses its charges as the current alternates and produces a lagging voltage (in other words, capacitor provides leading current in AC circuits and networks) .In a DC Circuit, the capacitor once charged with the applied voltage acts as an open switch.

  • 1 decade ago

    A capacitor is a circuit element that can store electric charge. They can be used in a variety of ways. One common use is to pass higher frequencies. This can be either to remove those frequencies, or to extract a signal from a low-frequency or DC current. In combination with inductors, capacitors create oscillating circuits, used for purposes including tone generation and radio tuning. Capacitors are also used to store electricity to fill in for momentary fluctuations in a DC supply. Large ones are used on high-power car audio amplifiers to provide extra peak power and keep the loud bass notes from making the headlights flicker.

  • How do you think about the answers? You can sign in to vote the answer.
  • 1 decade ago

    A capacitor has many and different uses.

    In a power supply, it acts to filter the output so there is little ripple.

    In an amplifier, it can be used to block DC and allow AC to pass.

    In general, it acts as a filter, blocking lower frequencies and passing higher ones.

    In power circuits it can correct the power factor so that the current and voltage are in phase, or more so.

    In motors it shifts the phase so that the motor will run.

    It's used to store charge in applications like a flash on a camera.

  • 4 years ago


    what is the function of capacitor in an electronic circuit?

    Source(s): function capacitor electronic circuit: https://trimurl.im/j66/what-is-the-function-of-cap...
  • 5 years ago

    A capacitor (originally known as a condenser) is a passive two-terminal electrical component used to store energy electrostatically in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors (plates) separated by a dielectric (i.e. insulator).

    Attachment image
  • Mary
    Lv 4
    4 years ago

    For the best answers, search on this site https://shorturl.im/axBAK

    It stores charge to even out the voltage. The cap gets charged up to the peak voltage when the diodes are conducting. When they are turned off, the capacitor delivers current to the load, and if the cap is large enough, the voltage stays close to the peak until the next cycle and it can get charged up again. .

  • Anonymous
    5 years ago

    1. As a store of energy or charge. e.g: reservoir capacitor in power pack.

    2. To couple a.c signal in and out of amplifier.

    3. To decouple unwanted a.c signal to ground or earth.

    4. In conjunction with coils to form tuned circuit.

    5. In conjunction with resistors to form timing circuit or frequency selective circuits.

    Attachment image
  • 1 decade ago

    Stores Electric Charges

Still have questions? Get your answers by asking now.