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Power Electronics Introduction - UNLV

1-1 Power Electronics Introduction Y. Baghzouz EE 442-642 1-2 Power Electronics : an Overview Power Electronics is an interdisciplinary subject within electrical engineering. 1-3 Power Electronic System A Power electronic system consists of Power electronic switching devices, linear circuit elements, digital circuits, microprocessors, electromagnetic devices, DSPs, filters, controllers, sensors, Ideal switch: controls energy flow with no loss. a)when on, it has zero voltage drop and will carry any current, b)wen off, it blocks the flow of current regardless of the voltage.

A power electronic system consists of power electronic switching devices, linear circuit elements, digital circuits, microprocessors, ... Switch-Mode Power Supply • Transistor is operated in switch mode (either fully ON ... 120/24 V, 36 VA, B = 1.5 T, core loss = 1 W, N1/N2 = 600/120, weight = 500 g. ...

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