公开(公告)号：US20230402883A1

公开(公告)日：2023-12-14

申请号：US18457014

申请日：2023-08-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Namju PARK ,  Jaejin KIM ,  Teaho LEE ,  Dongoh KANG ,  Jungsuk CHU

IPC: H02J50/80 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J50/12 ,  H02J50/402

Abstract: An example wireless power transmission apparatus includes a plate; a first communication module configured to perform wireless communication with an electronic device positioned on the plate; a power transmitting coil configured to transmit wireless power to the electronic device; a driving circuit configured to apply a current to the power transmitting coil; and a processor electrically connected to the first communication module, and the driving circuit. The processor is configured to control the driving circuit to periodically transmit the wireless power through the power transmitting coil, control the first communication module to acquire control information stored in a second communication module of the electronic device for a first time period during which transmission of the wireless power is stopped, and control the driving circuit to adjust the wireless power based on the control information.

公开(公告)号：US20230283191A1

公开(公告)日：2023-09-07

申请号：US18196596

申请日：2023-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jonghyun SHIN ,  Youngjae PARK ,  Junghoon LEE ,  Teaho LEE

IPC: H02M7/00 ,  H02M1/00 ,  H02M1/32 ,  H02M5/458 ,  H05K7/20

CPC classification number: H02M7/003 ,  H02M1/0009 ,  H02M1/327 ,  H02M5/458 ,  H05K7/209

Abstract: An electronic device in accordance with one embodiment may include a load that receives power and performs an operation; and a power supply that supplies power to the load, the power supply including: a rectifier configured to rectify an input alternating current (AC) voltage; a converter including at least one first switching element and configured to convert the rectified input AC voltage into a direct current (DC) voltage; an inverter including a plurality of second switching elements and configured to convert the DC voltage into an AC voltage; a plurality of temperature sensors configured to detect the temperature of each of a plurality of switching elements including the at least one first switching element and the plurality of second switching elements; and a processor configured to determine whether a temperature failure occurs in the plurality of switching elements based on a temperature difference between the plurality of switching elements or a temperature variation amount of each of the plurality of switching elements and performs temperature protection control on the plurality of switching elements based on determining that the temperature failure occurs.

公开(公告)号：US20230155585A1

公开(公告)日：2023-05-18

申请号：US18155439

申请日：2023-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jehyung CHO ,  Teaho LEE ,  Daesung KANG ,  Dongjo SHIN ,  Cheolhun CHO

IPC: H03K17/18 ,  H02M1/00 ,  G01R19/155

CPC classification number: H03K17/18 ,  H02M1/0003 ,  G01R19/155 ,  H02J9/005

Abstract: A power supply device is provided. The power supply device includes a first switch element for selectively providing an alternating current (AC) power source to an actuation device, a second switch element for selectively providing the AC power source to the first switch element, a detection circuit for confirming whether or not the first switch element is in a full turn-on state, by comparing an input power source and an output power source of the first switch element, a sensor for sensing the size of the AC power source, and a controller for selectively controlling the operation of the second switch element on the basis of the sensed size of the AC power source and the confirmed full turn-on state.

公开(公告)号：US20230155476A1

公开(公告)日：2023-05-18

申请号：US18155456

申请日：2023-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jehyung CHO ,  Ganghyun KIM ,  Dongjo SHIN ,  Daesung KANG ,  Sungin PARK ,  Hyojea SHIN ,  Teaho LEE

IPC: H02M1/00 ,  H02M1/36 ,  H02M7/72 ,  H02P27/06

CPC classification number: H02M1/0045 ,  H02M1/36 ,  H02M7/72 ,  H02P27/06

Abstract: A power supply device is provided. The power supply device includes a rectifier circuit for rectifying an inputted alternating current power supply, a capacitor circuit comprising a first and second capacitor which are connected in series, and smoothing the alternating current power supply rectified in the rectifier circuit, an inverter for converting the output power of the capacitor circuit to a preset power and outputting same, a switch for selectively connecting a middle node of the first capacitor and the second capacitor and an end of the alternating current power, a sensor for detecting a size of the alternating current power, and a controller which confirms a power mode of the alternating current power on the basis of an output value of the sensor, and which controls the switch so that the capacitor circuit multiplies and amplifies the selectively rectified alternating current power based on the confirmed power mode.