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AN3009 Datasheet(PDF) 3 Page - STMicroelectronics |
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AN3009 Datasheet(HTML) 3 Page - STMicroelectronics |
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3 / 36 page ![]() AN3009 List of figures Doc ID 16032 Rev 4 3/36 List of figures Figure 1. L6564 PFC controller in an SMPS architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Boost converter circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3. Inductor current waveform and MOSFET timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4. Switching frequency fixing the line voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 5. θ1 and θ2 depending on input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 6. Representation of capacitive losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 7. Conduction losses and total losses in the STF7NM50N MOSFET for the L6564 TM PFC 18 Figure 8. L6564 internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 9. Open-loop transfer function bode plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 10. Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 11. Multiplier characteristics for VFF =1 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 12. Multiplier characteristics for VFF = 3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 13. Optimum MOSFET activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 14. Excel spreadsheet design specification input table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 15. Other design data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 16. Excel spreadsheet TM PFC schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 17. Excel spreadsheet BOM - 100 W TM PFC based on L6564 . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 18. Wide-range 100 W demonstration board electrical circuit (EVL6564-100W) . . . . . . . . . . . 33 |
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