Main Knowledge Definitions Of Power Capacitors

Capacitors, as one of the three major passive components alongside resistors and coils, are indispensable electronic components in electronic devices. The following is an original introduction to capacitors:
Definition and basic capacitor, abbreviated as capacitor, represented by the letter C, is an electronic component capable of storing charge. Its basic structure consists of two mutually insulating metal plates (electrodes) and an insulator (medium) sandwiched between them. When a voltage is applied across the capacitor, charges accumulate on the metal plate, forming an electric field and storing electrical energy.
Working principle
The working principle of capacitors is based on the storage and release of charges. When a DC voltage is applied across the two ends of a capacitor, charges accumulate on the metal plate, forming an electrostatic field. The amount of stored charge is the capacitance value of the capacitor, which is determined by the dielectric constant of the medium, the surface area of the electrodes, and the thickness of the medium. The larger the capacitance value of a capacitor, the stronger its ability to store charge