Patent ID: 9348382
Filing Date: 2016-05-24
CPC Classification: G06F,H02M

Claim Text:
1. An apparatus for providing power to an electronic device comprising: a bus having a power line, a ground line and at least one data communication line; a variable voltage converter having a power input and a direct current (DC) output selectively coupled to the power line of the bus by a switch, the variable voltage converter having a voltage control signal input, whereby the variable voltage converter can provide a plurality of voltage levels at the DC output; logic coupled to the at least one data communication line and having a voltage control signal output developed in response to data communication with an electronic device and a switch control signal output coupled to the switch; a host ID controller having a host ID control input coupled to the logic, the host ID controller selectively coupled to the at least one data communication line in response to a host ID control signal developed by the logic; and a galvanic isolator coupling the voltage control signal output of the logic to the voltage control signal input of the variable voltage converter.