Transcription of POWER CONVERTER TOPOLOGY TRENDS - PSMA
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POWER CONVERTER TOPOLOGY TRENDS - PSMA
Name: Steve Mappus Systems Engineer Date: October 02, 2014 The POWER to Amaze. POWER CONVERTER TOPOLOGY TRENDS , 2 Agenda TOPOLOGY Overview Non Isolated Topologies Isolated DC-DC Derivatives Single Ended Topologies Transformer Reset Techniques Flyback CONVERTER Forward CONVERTER Double Ended Topologies Push Pull Half Bridge Full Bridge Summary 3 DOUBLE-ENDEDSINGLE-ENDEDACTIVE CLAMP2-SWITCHPUSH-PULLHALF BRIDGEFULL BRIDGELOW POWER (< 100 W)MID- POWER (100 W - 500 W)HIGH- POWER (> 500 W)HARD SWITCHEDZVT/PHASE SHIFTNON-ISOLATEDISOLATEDDVViO=DVViO =11 FORWARDDDVViO =1 SINGLE-ENDEDFLYBACKBOOSTBUCK-BOOSTBUCKAC TIVE CLAMP2-SWITCHLLCI solated POWER TOPOLOGY Derivatives 8 Mainstream CONVERTER Topologies Non-Isolated Isolated Bridge Bridge POWER levels numbers for general discussion only.
Current Fed Buck Tapped Inductors Multiple Outputs Interleaving ... Buck-Boost Converter (Inverting) Inductor volt-second balance: Buck-Boost CCM transfer function: ... Switching Waveforms 0V V DS 0A I DS t OFF t f t ON T S 0A I D V A V A 0V 0V V DET 0V V IN PBIAS V IN +V HS V GS(HS) V GS(LS) 0.7V 5µs 2.5V V O OVP I
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