Technical Notes - COSEL

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1Outline of Power Supply2Circuit Method of Switch mode Power Supply3Glossary of term374Notes on operationTechnical Notes385Electromagnetic Interference6Power Factor Correction7Reliability8Safety Standards9Standards and Regulations for Switch mode Power Supply10 Disclaimer38394247495252535538Regulated DC voltage is required for semiconductor devices suchas ICs and Transistors to function. Regulated voltage can be gen-erated from commercial AC lines with an AC to DC power supply orfrom DC power source (such as Batteries) with a DC to DC type is further classified to one that is isolated between pri-mary (Input) circuit and secondary (Output) circuit or the past 15 years, there have been significant changes inthe design of power suppl

1 Outline of Power Supply 2 Circuit Method of Switch mode Power Supply 3 Glossary of term 37 4 Notes on operation Technical Notes 38 5 Electromagnetic Interference

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