Energy storage is the primary function of a capacitor. Capacitors are very common in many electronic components and come in different sizes with different capacitances. More »

A switch-mode power supply supplies and converts electricity, usually from alternating to direct current, to electrical equipment through semi-conductors operating in a continuous, high frequency on-and-off mode. The swi... More »

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Voltage regulators function by generating a fixed output voltage and keeping the magnitude of that voltage constant despite changes to load conditions or input voltage. Two categories of voltage regulators exist: linear ... More »

Energy storage, provision of flexible filter options, power conditioning and coupling are some applications of a capacitor. Together with resistors, capacitors are used as main elements of frequency selective filters. More »

A spherical capacitor consists of two hollow, concentric spheres of oppositely charged electrodes with an insulator in between them. Physicists consider Earth to be a huge spherical capacitor surrounded by the ionosphere... More »

Energy, the ability of a system to do work, has a variety of measurement units, but the most basic unit of energy is the joule. Named after James Joule, the joule was developed to explain the relationship between heat an... More »

Energy transfer is the conveyance of energy from one item to another; the transfer occurs among different scales and motions. Energy transfer may mean different things in different sciences. More »