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ID:52470891
大小:1.09 MB
页数:14页
时间:2020-03-27
《Design a Flybuck Solution With Optocoupler to ImproveRegulation Performance用光耦合器设计一种调节性能地飞溅溶液.pdf》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、ApplicationReportSNVA727–January2015DesignaFlybuckSolutionWithOptocouplertoImproveRegulationPerformanceJohnnyGuo,DanielLiABSTRACTThispaperpresentsanisolatedflybuckdesignwithsynchronousbuckregulatorLM5160usingoptocouplerforbetterregulationperformance.Comparedwithtypicalisolated
2、flybacksolution,flybucktopologyhasoutstandingfeatureslikehigherfrequency,smallersolutionsize,andbetterefficiency.Higherperformanceandreliabilityrequiresbetterinputandloadregulation.Fortypicalflybuckdesign,theisolatedoutputvoltageisonlycontrolledbyprimaryoutputvoltageandtransfo
3、rmer.Thereforetheinputandloadregulationcannotbeensured.Aimingatthis,anoptocouplerisaddedintothedesignascompensationtoimproveregulationperformance.Thispaperincludesapplicationdesignandtestresults.Contents1Introduction.............................................................
4、.....................................................................22DesignFlybuckWithLM5160......................................................................................................22.1SelectionofPrimaryVoltageandTurnsRatio.......................................
5、................................32.2FeedbackResistor.................................................................................................................32.3SecondaryRectifierDiode.....................................................................................
6、................32.4TransformerCalculation........................................................................................................42.5InputandOutputCapacitor....................................................................................................42.6
7、RippleInjectionCircuit...........................................................................................................52.7LM5160FlybuckSchematic...................................................................................................63DesignFlybuckWithOpto
8、coupler......................................................
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