Transcription of Adaptive Constant On-Time (D-CAPTM - TI.com
{{id}} {{{paragraph}}}
Example: barber
Adaptive Constant On-Time (D-CAPTM - TI.com
1 Introduction+++VrefErrorAmplifierPWMC omparatorVrampC1C2R2 GateDriversUGLGR3 VINVoutCoLoC3R1 ApplicationReportSLVA281B July2007 RevisedDecember2007 AdaptiveConstantOn- time (D-CAP ) ,currentmode,constanton-timecontrol,anda daptiveontimecontrol(D-CAP mode)arediscussedindetailintermsoftheirc ontrolmethods, modeisstudied, ,currentmode,hystereticmode,constanton-t imemode,constantofftimemode,andadaptiveo n-timemode(D-CAP mode). [1] , July2007 RevisedDecember2007 AdaptiveConstantOn- time (D-CAP ) +++GateDriversVrefErrorAmplifierPWMC omparatorUGLGC2R2R1 VINVoutCoLoCurrentRampLoILoadITonVrefTon is triggered when Vodeclines to Vref On-Time ControlQ2 DRVHDRVLOne , (DCM) ,thehysteresiscontrolmodeorpulsefrequenc ymodulation(PFM)isusedatDCMtoreducethesw itchingloss,gatedriveloss, (D-CAP )ControlStudyinNotebookApplicationsSLVA2 81B July2007 V+12%Current V+12%CC_+_++_+_+_+_+_+ (VCC VTRIP1 VCCLSD TripHSD Trip VTRIP1) ,Inordertoachievegoodlightloadefficiency , ,duringthemodetransition, , , , , , (D-CAP mode)isabletodynamicallyadjusttheon- time durationbasedontheinputvolt
www.ti.com SKIP PWM SKIP PWM Loop Comparator FB Ref PWM Latch S R Q Ion = Vin/Ron On-Time Timer Con Ioff Coff Minimum Off-Time Timer S R Q ZC Latch Zero-Crossing Comparator
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: