Invention Grant
- Patent Title: Circuit for and method of protecting overvoltage in universal serial bus interface
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Application No.: US16260253Application Date: 2019-01-29
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Publication No.: US11296494B2Publication Date: 2022-04-05
- Inventor: Je-kook Kim
- 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
- Agency: Lee IP Law, PC
- Priority: KR10-2018-0098091 20180822
- Main IPC: H02H7/20
- IPC: H02H7/20 ; H01R13/713 ; H01R24/60 ; H02H3/20 ; H02H1/00 ; H01R107/00
Abstract:
A circuit to protect an overvoltage in a universal serial bus (USB) device include an overvoltage protection (OVP) switch connected to a pin of a USB receptacle and a switch controller to turn off the OVP switch when an overvoltage is detected such that power between the pin and the USB device is interrupted. The switch controller supplies a control signal to the OVP switch such that the OVP switch has a first on-resistance when the USB device is operating in a normal mode and no overvoltage is detected, and has a second on-resistance, higher than the first on-resistance, when the USB device is operating in a low-power mode and no overvoltage is detected.
Public/Granted literature
- US20200067304A1 CIRCUIT FOR AND METHOD OF PROTECTING OVERVOLTAGE IN UNIVERSAL SERIAL BUS INTERFACE Public/Granted day:2020-02-27
Information query
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