公开(公告)号：US20230050735A1

公开(公告)日：2023-02-16

申请号：US17884995

申请日：2022-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gunhyuk YOON ,  Chanhee PARK ,  Youngsan KIM ,  Seungjoo LEE ,  Seungchul CHOI

IPC: G06F1/20 ,  H04R29/00 ,  G05B13/02 ,  H04R3/00

Abstract: Provided is an electronic device for controlling surface heart and a method of controlling the electronic device. The electronic device includes a speaker, a temperature sensor, a memory, and a processor electrically coupled to the speaker, the temperature sensor, and the memory. The processor obtains first temperature information based on impedance information measured in a coil included in the speaker; obtains second temperature information measured by the temperature sensor, the second temperature information based on a heat source disposed adjacent to the speaker; predicts a surface temperature of a surface area of the electronic device, opposite to an internal area in which the speaker is disposed, based on the first temperature information and the second temperature information using a nonlinear approximation function; and controls an audio signal input to the speaker based on the predicted surface temperature.

公开(公告)号：US20220271742A1

公开(公告)日：2022-08-25

申请号：US17564915

申请日：2021-12-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chanhee PARK ,  Ahreum KIM ,  Minsu KIM

IPC: H03K3/356 ,  H01L27/02

Abstract: A voltage level shifter cell, which is configured to convert voltage levels of input signals of multi-bits, includes: a first circuit area including a first voltage level shifter configured to convert a 1-bit first input signal from among the input signals; and a second circuit area including a second voltage level shifter configured to convert a 1-bit second input signal from among the input signals, wherein the first circuit area and the second circuit area share a first N-well to which a first power voltage is applied, and the first circuit area and the second circuit area share a second N-well to which a second power voltage is applied, wherein the first N-well is formed to extend in a first direction, and the first N-well and the second N-well are arranged to overlap in a second direction crossing the first direction.

公开(公告)号：US20220262599A1

公开(公告)日：2022-08-18

申请号：US17470337

申请日：2021-09-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunbae KIM ,  Hyunjae LEE ,  Youngdo KIM ,  Hyejin KIM ,  Sangki NAM ,  Chanhee PARK ,  Minho JUNG

IPC: H01J37/32

Abstract: A variable frequency and non-sinusoidal power generator includes a pulse module circuit, a slope module circuit, and first and second cooling systems. The pulse module circuit and the slope module circuit includes control switches, and generates at least one of a output currents and a output voltages by selectively turning on/off the control switches based on control signals. The first and second cooling systems are disposed at first and second sides of the control switches. A bias power having a variable frequency and a non-sinusoidal waveform is generated based on the control signals, at least one of the output currents and the output voltages.