Invention Application
- Patent Title: PROTECTION CIRCUIT IN ELECTRONIC DEVICE AND METHOD THEREFOR
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Application No.: US17263044Application Date: 2020-10-30
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Publication No.: US20220337200A1Publication Date: 2022-10-20
- Inventor: Hyunseok CHOI , Jooseung KIM , Jihoon KIM , Hyoseok NA , Sanghun SIM , Namjun CHO
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Priority: KR10-2019-0136596 20191030
- International Application: PCT/KR2020/015021 WO 20201030
- Main IPC: H03F1/52
- IPC: H03F1/52 ; H03F3/24 ; H02H3/087

Abstract:
An electronic device and method thereof of are provided to prevent burnout due to overcurrent. An electronic device includes a power amplifier configured to amplify a transmission signal; a battery configured to provide a bias voltage to the at least one power amplifier; and an overcurrent protection circuit configured to prevent overcurrent from flowing through the power amplifier. The overcurrent protection circuit includes a configurer configured to configure a reference current value, based on the power amplifier; a measurer configured to measure a bias current value due to the bias voltage; a comparator configured to compare the measured bias current value with the reference current value; and a controller configured to recognize overcurrent flowing through the power amplifier and control provision of the bias voltage, based on a result of the comparison.
Public/Granted literature
- US12074572B2 Protection circuit in electronic device and method therefor Public/Granted day:2024-08-27
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