Transcription of A Tutorial Introduction to Switching Converters
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A Tutorial Introduction to Switching Converters
A Tutorial Introduction to Switching Converters Christophe Basso Business Development Manager IEEE Senior Member February 2022 Rev Agenda Power Conversion Mechanisms Switching Cells and Control Schemes The Buck The Boost The Buck-Boost Introduction to Control Loop Design EMI Filter Interaction Introduction to Simulation The Goal of a Converter is to Deliver Power A converter transforms the energy from a source into a physical work The conversion mechanism generates losses and heat which must be evacuated Only way to feel the noise Pin Noise source Pout It's when it's good and loud . Electrical Dc-dc source Power amplifier Transducer Work conversion Energy efficiency is about minimizing the losses in the conversion chain A highly-efficient converter implies lower-size heatsink and improved reliability No Loss in a Perfect World In an ideal system, all the energy coming from the source converts into work By the ratio between the delivered power and the input power is efficiency The Greek letter eta designates a unitless number less than 1 or 100%.
The conversion mechanism generates losses and heat which must be evacuated Electrical source Dc-dc conversion Power amplifier Noise source ... The switching approach uses a power switch either open or closed The linearapproach: oefficiency is poor ogood noise performance oacceptable when ...
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