公开(公告)号：US20250069794A1

公开(公告)日：2025-02-27

申请号：US18809893

申请日：2024-08-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooseok LEE ,  Sangmin YOO ,  Jeongyeol BAE ,  Jongsoo LEE ,  Soyeon KIM

IPC: H01F27/28 ,  H03H7/38 ,  H04B1/04

Abstract: A switchable coil includes a first coil including a first outer coil and a first inner coil, the first inner coil and the first outer coil forming a first crossing-region, a second coil including a second outer coil and a second inner coil, the second inner coil and the second outer coil forming a second crossing-region, and the second crossing-region being inside the first inner coil viewed in a first direction, and a switch connected to a region facing the second crossing-region in the second inner coil.

公开(公告)号：US20250070729A1

公开(公告)日：2025-02-27

申请号：US18780949

申请日：2024-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooseok LEE ,  Minchul KANG ,  Sangmin YOO ,  Jeongyeol BAE ,  Jongsoo LEE

IPC: H03F3/24 ,  H03F3/45 ,  H04B1/04

Abstract: Disclosed is a transmitter. The transmitter includes a plurality of power amplifiers, each of the plurality of power amplifiers being configured to receive an RF input signal, a parallel power combiner configured to combine outputs of the plurality of power amplifiers to generate an RF output signal, a supply voltage switch configured to provide one supply voltage to the plurality of power amplifiers, the one supply voltage being selected from among a plurality of supply voltages of different voltage levels, and a controller configured to control an output power of the RF output signal by selecting the one supply voltage from among the plurality of supply voltages, and controlling whether to activate each of the plurality of power amplifiers.