Transcription of Switching regulator fundamentals (Rev. C) - Texas …
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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 o
24 V to 48 V), which must be locally converted to 15 V, 12 V or 5 V with very little power loss. The buck converter uses a transistor as a switch that alternately connects and disconnects the input voltage to an inductor (see Figure 5). ... Texas Instruments Incorporated
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