an-1077| Application Note
Application Note AN-1077
PFC Converter Design with IR1150 One Cycle Control IC
By R. Brown, M. Soldano, International Rectifier
Table of Contents
Page Introduction ..........................................................................................1 One Cycle Control for PFC Applications ..............................................2 IR1150 Detailed Description.................................................................3 PFC Converter Design Procedure........................................................4 Converter Specifications .................................................................4 Converter Input and Output Variables Defined ...............................4 Converter Schematic Diagram........................................................5 Maximum Input Power and Currents....................................................6 High Frequency Input Capacitor Requirements ...................................6 Boost Inductor Designs ........................................................................6 Output Capacitor Requirements .....................................................7 Control Section Design .................
..................................................7 Output Voltage Divider....................................................................7 Output OVP Divider Design ............................................................8 Switching Frequency Selection.......................................................8 Current Loop and Over-current Protection......................................9 Soft Start Design.............................................................................11 Table of Contents continues on next page...
AN-1077
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