1.WhatisPowerElectronics(3)EfficientconversionAnexampleHowto realizeconvertingfrom100Vpcto5oVoc?10AVDc-deRVconverter50V52100VInputsource:10ovOutputload:50V,10A,500wHowcanthisconverterberealized?
(3)Efficient conversion An example. How to realize converting from 100VDC to 50VDC? 1. What is Power Electronics
1.WhatisPowerElectronics(3)EfficientconversionAn example.Howto realizeconvertingfrom100Vpcto5oVoc?Resistivevoltagedivider110AK+Cannot be!+50VVPloss=500WRVK50V592100VWhy?ou=500WPn=1000WD
(3)Efficient conversion An example. How to realize converting from 100VDC to 50VDC? Cannot be ! Why? 1. What is Power Electronics
1.WhatisPowerElectronicsAn example.(3)EfficientconversionHowto realizeconvertingfrom100Vpcto5oVoc?Seriespass regulator:transistor operatesinactive region1Cannot be!10A50V++linearamplifierVeWhy?RVandbasedrive50V52100V-500WDP.1000w=500W
(3)Efficient conversion An example. How to realize converting from 100VDC to 50VDC? Cannot be ! Why? 1. What is Power Electronics
1.Whatis Power ElectronicsAnexample(3)Efficientconversion10A+Hard to utilize!2Rv(t)v,(t)50V100VWhy?V(0)VeHow to realize convertingV.=DV0from100Vpcto50Vpc?DT,+(-D)Ttswitch2position:11
An example. Cannot be ! Why? Hard to utilize ! Why? How to realize converting from 100VDC to 50VDC? (3)Efficient conversion 1. What is Power Electronics
1.Whatis Power Electronics(3)EfficientconversionVD=switchdutycycleV.=DV0≤D≤10T=switchingperiodDT,(1-D)TISwitchf,=switchingfrequencyposition:211=1/T,How to realizeDCcomponentofy(t)=averagevalue:physically?y()dt=DV
(3)Efficient conversion How to realize physically? 1. What is Power Electronics