Such as resistors, capacitors working principles are generally the same and belong to the group of passive components, the type of components that work without the need for bias current. To distinguish the type or types of capacitors can be distinguished from the material which is used as the dielectric material in the form isolatornya paper, mica, ceramic, plastic and other fluids.
Capacitor is needed in an electronic circuit because it is useful to avoid stepping sparks of electricity in the circuit containing the coil, storing electrical charge in a circuit, determine the frequency on the receiver and a filter in the power supply circuit.
There are several functions of capacitors, which are:
as a store of electrical current or voltage.
as an insulator or barrier to the flow of electric current DC.
as a conductor or passing an electric current to AC current.
Other functions of the capacitor in the electronic circuit is:
as a clutch.
as a phase shifter.
as a filter on the power supply circuit.
as the frequency generator oscillator circuit.
to avoid sparks on a switch.
Such is a brief review of the meaning and function of capacitors that we extracted from several reference sources. Hopefully useful for all lovers of electronics.
