Patent ID: 9501116
Filing Date: 2016-11-22
CPC Classification: G06F

Claim Text:
1. A power integrated device, comprising: a first connection port; a second connection port; a detection circuit, arranged to detect whether the first connection port is coupled to a first power source with a first power value and the second connection port is coupled to a second power source with a second power value to produce a first valid signal and a second valid signal, respectively, wherein the detection circuit produces a first power spec signal with a first level when the first power value meets a first predetermined power value, produces the first power spec signal with a second level when the first power value meets a second predetermined power value, produces a second power spec signal with the first level when the second power value meets the first predetermined power value, and produces the second power spec signal with a second level when the second power value meets the second predetermined power value, wherein the first predetermined power value is greater than the second predetermined power value, the first power source is different from the second power source, and the first level is greater than the second level; and a determination circuit, arranged to produce a system power-control signal according to the first valid signal, the second valid signal, the first power spec signal and the second power spec signal to turn on or turn off the power integrated device.