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Modeling conduction loss SEPIC example MOSFET R on, diode V D Averaged terminal voltages of switch network, including conduction losses:

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Presentation on theme: "Modeling conduction loss SEPIC example MOSFET R on, diode V D Averaged terminal voltages of switch network, including conduction losses:"— Presentation transcript:

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10 Modeling conduction loss SEPIC example MOSFET R on, diode V D Averaged terminal voltages of switch network, including conduction losses:

11 Averaging the terminal currents

12 Elimination of intermediate variables From previous slides: Eliminate inductor currents and capacitor voltages, which are external to switch network: Construct equivalent circuit:

13 Spice library model CCM2

14 Insert model into SEPIC Simulation of conversion ratio and efficiency

15 Simulation model Buck-boost with conduction loss Buck-boost converterAveraged switch model

16 Transient analysis example


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