- Patent Title: Electronic device supporting connection with external device and power consumption reducing method when using electronic device in connection with external device
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Application No.: US16947548Application Date: 2020-08-06
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Publication No.: US11243594B2Publication Date: 2022-02-08
- Inventor: Wookwang Lee , Kyounghoon Kim , Byungjun Kim , Taewoong Kim , Sanghyun Ryu
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Priority: KR10-2019-0116402 20190920
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/3234 ; G06F13/20 ; G06F13/42 ; H01R13/66 ; G06F1/3296
Abstract:
An electronic device including a PDIC, a charging IC, and a processor. The PDIC determines whether an external device is connected to the USB port, through a first pin of a USB port. The charging IC outputs a first voltage, which is a voltage obtained by boosting a voltage provided by a battery, to the external device through a second pin, when the external device is connected to the USB port. The processor is configured to determine whether the external device connected to the USB port is a first external device having a specified VID and a specified PID, through a third pin of the USB port, and to transmit a first signal, which controls the charging IC to output a second voltage having a magnitude less than the first voltage, to the charging IC when the first external device is connected to the USB port.
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