Title :
Power electronics primer
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
The functioning of power circuits is explained by considering the need to supply a load with an AC voltage waveform when the source of power is a DC voltage source. Another example of a power circuit´s possible form, arising from the need to provide an automobile´s microprocessor control unit with a regulated 5 V/sub DC/ from a battery whose voltage varies around 12 V/sub DC/, is examined. Supporting techniques are reviewed. The evolution of high-frequency, high-density power supplies is summarized.<>
Keywords :
power convertors; power electronics; power supply circuits; 12 V; 5 V; AC voltage waveform; DC voltage source; power circuits; power supplies; Capacitors; Frequency; Inductors; Photovoltaic systems; Power engineering and energy; Power harmonic filters; Resistors; Switches; Switching circuits; Voltage;
Journal_Title :
Circuits and Devices Magazine, IEEE
