Design Guide for Off-line Fixed Frequency DCM Flyback ...

Design Note DN 2013-01 January 2013 Design Guide for Off-line Fixed Frequency DCM Flyback Converter Allan A. Saliva Infineon Technologies North America (IFNA) Corp. DCM Flyback 2 Design Note DN 2013-01 January 2013 Edition 2013-01 Published by Infineon Technologies North America 27703 Emperor Blvd, suite 310, Durham, NC 27703 Infineon Technologies North America Corp. 2013 All Rights Reserved. Attention please! THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMEN-TATION OF THE INFINEON TECHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONENT. THE RECIPIENT OF THIS APPLICATION NOTE MUST VERIFY ANY FUNCTION DESCRIBED HEREIN IN THE REAL APPLICATION. INFINEON TECHNOLOGIES HEREBY DISCLAIMS ANY AND ALL WARRANTIES AND LIABILITIES OF ANY KIND (INCLUDING WITHOUT LIMITATION WARRANTIES OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF ANY THIRD PARTY) WITH RESPECT TO ANY AND ALL INFORMATION GIVEN IN THIS APPLICATION NOTE.

design. II. Fixes Frequency Flyback Modes of Operation: DCM vs CCM Figure 1 shows the basic circuit diagram of a Flyback converter. Its main parts are the transformer, the primary switching MOSFET Q1, secondary rectifier D1, output capacitor C1 and the PWM controller IC. Depending on the design of T1, the Flyback can operate either in CCM ...

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  Design, Transformers, Flyback

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