Designing Magnetic Components for Optimum Performance Article
نویسندگان
چکیده
Assuming that the reader is familiar with basic magnetic design theory, this topic provides design guidance to achieve high efficiency, low electromagnetic interference (EMI), and manufacturing ease for the magnetic components in typical offline power converters. Magnetic-component designs for a 90-W notebook adapter and a 300-W ATX power supply are used as examples. Magnetic applications to be considered include the input EMI filter, power inductor design, high-voltage (HV) level-shifting gate drives, and singleand multiple-output forward-mode transformers in both wound and planar formats. The techniques are also applied to flyback “transformers” (coupled inductors) and will enable lowerprofile designs with lower intrinsic common-mode noise generation.
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