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AN3009 Datasheet(PDF) 3 Page - STMicroelectronics

Part # AN3009
Description  How to design a transition mode PFC pre-regulator using the L6564
PDF  36 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3009 Datasheet(HTML) 3 Page - STMicroelectronics

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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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