Patent ID: 11881736
Assignee: ASUSTEK COMPUTER INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A power system, applied to a handheld device, comprising:
a battery;
a first connecting port;
a second connecting port;
a first charging path, electrically connected to the battery and the first connecting port;
a second charging path, electrically connected to the battery and the second connecting port;
a first detector, electrically connected to the first connecting port to generate a first detection signal;
a second detector, electrically connected to the second connecting port to generate a second detection signal;
a power delivery controller;
a control unit, electrically connected to the first detector and the second detector to receive the first detection signal and the second detection signal, generating a switching signal according to the first detection signal and the second detection signal, and controlling conduction statuses of the first charging path and the second charging path;
a switching element, electrically connected to the control unit, the power delivery controller, the first connecting port, and the second connecting port to receive the switching signal, and selectively electrically connecting the power delivery controller to the first connecting port or the second connecting port according to the switching signal; and
an On-The-Go (OTG) power supply unit, electrically connected to the control unit and the battery, wherein the control unit generates an OTG enable signal according to the first detection signal and the second detection signal, and the OTG power supply unit converts a battery voltage provided by the battery into an OTG voltage according to the OTG enable signal and outputs the OTG voltage.