公开(公告)号：US20240072802A1

公开(公告)日：2024-02-29

申请号：US18349823

申请日：2023-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HYOUNGJOONG KIM ,  CHEOLMIN AHN ,  MYEONG-CHEOL KIM ,  WOONGKI MIN ,  SANGHO KIM ,  SOOMIN LEE

IPC: H03K19/003

CPC classification number: H03K19/00315

Abstract: A electronic device includes a transceiver including a transmitter and a receiver that operate based on a power source voltage and a pad voltage applied from a pad; and an overvoltage protection circuit to apply a first protection voltage to the transmitter and a second protection voltage to the receiver. The overvoltage protection circuit includes: a reference voltage generator to generate a reference voltage when the power source voltage is in an on state; and a voltage detector to set the first protection voltage and the second protection voltage based on the reference voltage when the power source voltage is in an on state, and set the first protection voltage and the second protection voltage based on the pad voltage when the power source voltage is in an off state.