Transcription of Configuring Source of Multiple ePWM Trip-Zone Events
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Configuring Source of Multiple ePWM Trip-Zone Events
ApplicationReportSPRAAR4 (TZ) : (TZCTL) = CMPBCTR = CMPACTR_DirCTR = 0 CTR = PRDDeadBand(DB)CounterCompare(CC)ActionQ ualifier(AQ)EPWMxAEPWMxBCTR = CMPB WCTR = 0 EPWMxINTEPWMxSOCAEPWMxSOCBEPWMxAEPWMxBTZ 1 to TZ6 CTR = CMPA WTime-Base(TB)CTR = PRD WCTR = 0 WCTR_DirEPWMxSYNCIEPWMxSYNCOEPWMxTZINTPW M-chopper(PC)EventTriggerandInterrupt(ET )TripZone(TZ) (TZ1toTZ6)thataresourcedfromthegeneral-p urposeinput/output(GPIO) , : TripinputsTZ1toTZ6canbeflexiblymappedtoa nyePWMmodule. Uponafaultcondition,outputsEPWMxAandEPWM xBcanbeforcedtooneofthefollowing: High Low High-impedance Noactiontaken Supportforone-shottrip(OSHT)formajorshor tcircuitsorover-currentconditions Supportforcycle-by-cycletripping(CBC)for currentlimitingoperation Eachtrip-zoneinputpincanbeallocatedtoeit herone-shotorcycle-by-cycleoperation.
Application Report SPRAAR4–October 2007 Configuring Source of Multiple ePWM Trip-Zone Events Jeff Stafford..... AEC C2000 ABSTRACT Applications that require PWM outputs to respond to multiple trip-zones (TZ) are
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