Protection From Puppies (or Wombats): A Closer Look at USB PD 3.0’s Fast Role Swap (.PDF Download)

We’ve talked quite a lot about the new USB specifications in recent articles (see here, here, and here). One feature we haven’t covered in depth is Fast Role Swap (FRS), defined in the latest USB Power Delivery specification (USB PD) version 3.0.

Why do we need it? Picture this common scenario: You're hanging out in your Wagga Wagga apartment watching reruns of “Skippy The Bush Kangaroo.” Then the unthinkable happens. Your pet wombat (or puppy if you’re n

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