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Illegal USB – Sourcing the Power, Killing PCs | Cypress Semiconductor

Illegal USB – Sourcing the Power, Killing PCs

Last Updated: 
May 09, 2011

Did you know that one of the greatest benefits of the Universal Serial Bus (USB) is the fact that the four wire cable carries power to the peripheral devices?  This can be wonderful in specific applications if designed properly.  If designed improperly, however, designers can have real field failure issues on their hands.  Understanding Universal Serial Bus power standards, 'legal' and 'illegal' design choices, and the implications of making illegal USB design choices can be key information for designers.  This article gives specific technical explanation for the above choices and leaves the designer fully understanding USB power issues. To view more on this topic, click the download link above.

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