System and method for voltage switching to supply various voltag

Details System and method for voltage switching to supply various voltag System and method for voltage switching to supply various voltag

1997-04-15

1999-03-16

Ray, Gopal C.

Boots, shoes, and leggings

39575002, 364492, G06F 126

Patent

active

058840869

ABSTRACT:
Within a data processing system, such as a personal computer, non-standard, or auxiliary, voltage and current may be supplied to an attached peripheral device along with standard Universal Standard Bus (USB) power and signalling. A communication protocol is enabled between the host system and the peripheral device to permit the peripheral device to communicate its power requirements to the host device so that the host device can switch the proper voltage and current through the USB cable to the peripheral device. This allows the peripheral device to obtain power without having to connect to an AC power supply.

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