Transcription of Fundamentals of Power Electronics
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Fundamentals of Power Electronics
Fundamentals of Power ElectronicsChapter 1: Introduction1 Fundamentals of Power ElectronicsSecond editionRobert W. EricksonDragan MaksimovicUniversity of Colorado, BoulderFundamentals of Power ElectronicsChapter 1: Introduction2 Chapter 1: Introduction to Power Some applications of Power Elements of Power electronicsSummary of the courseFundamentals of Power ElectronicsChapter 1: Introduction to Power ProcessingDc-dc conversion:Change and control voltage magnitudeAc-dc rectification:Possibly control dc voltage, ac currentDc-ac inversion:Produce sinusoid of controllablemagnitude and frequencyAc-ac cycloconversion:Change and control voltage magnitudeand frequencySwitchingconverterPowerinputPow eroutputControlinputFundamentals of Power ElectronicsChapter 1: Introduction4 control is invariably requiredSwitchingconverterPowerinputPowe routputControlinputControllerreferencefe edbackfeedforwardFundamentals of Power ElectronicsChapter 1: Introduction5 High efficiency is essentialHigh efficiency leads to lowpower loss within converterSmall size and reliable operationis then feasibleEfficiency is a good measure ofconverter / Pout =PoutPinPloss=Pin Pout=Pout1 1 Fundamentals of Power ElectronicsChapter 1: Introduction6A high-efficiency converterA goal of current converter technology is to construct converters of smallsize and weight, which process substantial Power at high efficiencyConverterPinPoutFundam
Control is invariably required Switching converter Power input Power output Control input Controller reference ... A goal of current converter technology is to construct converters of small size and weight, which process substantial power at high efficiency ... D = switch duty cycle 0 ≤ D ≤ 1 Ts = switching period fs = switching frequency ...
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