Application Note 17 - Microchip Technology
October 19981Application Note 17Application Note 17MicrelApplication Note 17Universal serial Bus Power Managementby Kevin LynnIntroductionPower management and distribution is a major factor incorrectly designing USB ( universal serial Bus) methods of designing USB peripheral power distribu-tion are crucial to ensure full compliance with the USBspecification, including compliance with electromagnetic in-terference (EMI) and voltage regulation ClassesUSB defines several device classes, differentiated by theirpower requirements or capabilities. The most important de-vice classes are hubs and provide for distribution of data and power to down-stream (away from the host) devices and communicate withthe host.
Application Note 17 Universal Serial Bus Power Management by Kevin Lynn Introduction Power management and distribution is a major factor in correctly designing USB ...
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