Transcription of Switching regulator fundamentals (Rev. C) - Texas …
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Switching regulator fundamentals (Rev. C) - Texas …
1 SNVA559C September2012 RevisedFebruary2019 SubmitDocumentationFeedbackCopyright 2012 2019,TexasInstrumentsIncorporatedSwitchi ngregulatorfundamentalsApplicationReport SNVA559C September2012 RevisedFebruary2019 SwitchingregulatorfundamentalsAdamCastal doABSTRACTS witchingregulatorsare increasingin popularitybecausetheyofferthe advantagesof higherpowerconversionefficiencyand increaseddesignflexibility(multipleoutpu tvoltagesof differentpolaritiescan begeneratedfroma singleinputvoltage).This paperwill detailthe operatingprinciplesof the four mostcommonlyusedswitchingconvertertypes: buck usedto reducea DC voltageto a lowerDC providesan outputvoltagethat is higherthanthe (invert) an outputvoltagethat is generatedoppositein polarityto the an outputvoltagethat is less thanor greaterthanthe inputcan be generated,as well ,somemultiple-transistorconvertertopolog ieswill be presented:Push-Pull A two-transistorconverterthat is especiallyefficientat low A two-transistorconverterusedin A four-transistorconverter(usuallyusedin offlinedesigns)that can generatethe highestoutputpowerof all th
Buck — used to reduce a ... The graph on the left shows that current which is constant with time has a di/dt value of zero, and results in no voltage across the inductor. The center graph shows that a current which is increasing with time has a positive di/dt value, resulting in a positive inductor voltage.
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