What is the primary operational principle of a Switch Mode Power Supply?
Answer
Rapidly switching a transistor on and off to control energy transfer
A Switch Mode Power Supply achieves efficiency by rapidly switching a transistor on and off at high frequencies. This method controls the amount of energy transferred, while storing temporary excess energy in magnetic components like inductors and capacitors, rather than dissipating it as heat like older linear designs.
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History of Computer Power Supplies - YouTube
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