AN728 Description
AN728 Vishay Siliconix Designing A Flyback Converter with Si9113 for Feeding the TE from U-Interface In ISDN Nitin Kalje and Tony Lai INTRODUCTION The efficiency of the converter powering the NT is extremely important, even at power levels of a few milliwatts. To achieve 60% efficiency with an 80-mW output, the allowable power loss in the converter is less than 54 mW. The ponents of these losses include the dc and...