-
11.发明公开公开(公告)号：US20230333202A1
公开(公告)日：2023-10-19
申请号：US18338897
申请日：2023-06-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Jaehyun PARK , Hyunseok SHIN , Jeongman LEE , Chongmin LEE , Bohwan CHOI , Hyoseok HAN
CPC classification number: G01S5/0284 , H02J50/90 , H02J50/80 , H02J50/12
Abstract: According to various embodiments, a method of operating a wireless power reception device may comprise: confirming information about the location of the wireless power reception device with respect to a wireless power transmission device based on a first signal received from the wireless power transmission device using at least one communication module of the wireless power reception device; confirming information about a first charging range of the wireless power transmission device based on a second signal received from the wireless power transmission device using the at least one communication module; and displaying the location of the wireless power reception device as a first icon and the first charging range as a line or a plane on a display of the wireless power reception device based on the information about the location of the wireless power reception device and the information about the first charging range of the wireless power transmission device.
-
公开(公告)号：US20230094440A1
公开(公告)日：2023-03-30
申请号：US17956443
申请日：2022-09-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Youngho RYU , Jungkyu HAN
Abstract: According to various embodiments, an example wireless power transmitter may include a transistor configured to output an amplified signal based on an input signal and a driving voltage, a first capacitor coupled to the transistor in parallel, a first LC resonant circuit coupled to the transistor in parallel and including a first inductor and a second capacitor coupled to the first inductor in series, a third capacitor having a first end coupled to an output terminal of the transistor and the first LC resonant circuit, a feeding coil coupled to a second end of the third capacitor in series, and having at least a part configured to form a second LC resonant circuit with the third capacitor, and a transmission resonator including a transmission coil and a fourth capacitor coupled to the transmission coil in series. At least a part of the transmission coil may be magnetically coupled with the feeding coil, and at least a part of power received from the feeding coil may be output to an outside through the transmission resonator.
-
13.发明申请公开(公告)号：US20230040473A1
公开(公告)日：2023-02-09
申请号：US17970216
申请日：2022-10-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Jaesun SHIN , Jihyun YANG , Jeongman LEE , Seogyong JEONG , Hyoseok HAN
Abstract: An electronic device may include: a resonance circuit which comprises a battery, a coil and a capacitor, and receives power wirelessly; a rectifier which rectifies AC power, provided from the resonance circuit, to DC power; a DC/DC converter which converts and outputs the DC power provided from the rectifier; a charger which charges the battery by using the converted power provided from the DC/DC converter; a first OVP circuit which selectively connects the coil to the capacitor; a second OVP circuit which is connected in parallel to the first OVP circuit; a detection circuit which detects a rectified voltage; a control circuit; and a communication circuit, wherein the control circuit, on the basis that the detected rectified voltage is equal to or greater than a first threshold voltage, controls the first OVP circuit so as to be in an off state so that the coil is not connected to the capacitor, and on the basis that the detected rectified voltage is less than a second threshold voltage, controls the first OVP circuit so that the first OVP circuit is switched from the off state to an on state so that the coil is connected to the capacitor, wherein the second threshold voltage may be smaller than the first threshold voltage.
-
公开(公告)号：US20220360110A1
公开(公告)日：2022-11-10
申请号：US17683614
申请日：2022-03-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Kangho BYUN , Sungku YEO , Chongmin LEE , Bohwan CHOI , Hyoseok HAN
Abstract: According to various embodiments, a wireless power reception device for receiving wireless power from a wireless power transmission device may include a first circuit, a first rectifier circuit, a detuning circuit, and a control circuit. The first circuit may include a first coil. The first rectifier circuit may include a first switch and a second switch among a plurality of switches. The detuning circuit may include at least one detuning capacitor and at least one detuning switch. In response to a voltage at an output terminal of the first rectifier circuit exceeding a first voltage, the control circuit may be configured to form a closed loop including the first coil, the first switch, and the second switch by controlling the at least one detuning switch to an on state and controlling the first switch and the second switch to the on state.
-
公开(公告)号：US20210143677A1
公开(公告)日：2021-05-13
申请号：US16889214
申请日：2020-06-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jinbong LEE , Beomwoo GU , Jaehyun PARK , Sanghyuk WI
Abstract: A wireless power transmitter may include: a power factor correction (PFC) circuit configured to convert first alternating current (AC) power input from a power source into direct current (DC) power; an inverter configured to convert the DC power output from the PFC circuit into second AC power; a power transmission circuit configured to transmit wireless power, based on the second AC power output from the inverter; and at least one processor configured to identify at least one of a voltage or a current of the DC power output from the PFC circuit, and control an operation of the inverter based on the identified at least one of the voltage or the current
-
Patent Agency Ranking
公开(公告)号：US20200343720A1
公开(公告)日：2020-10-29
申请号：US16803336
申请日：2020-02-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Beomwoo GU , Jeongman LEE , Seogyong JEONG
Abstract: An electronic device includes a reception coil configured to wirelessly receive power based on an externally formed magnetic field, a rectifier configured to rectify power generated from the reception coil, an over-voltage protection circuit connected with the rectifier, and an output capacitor connected with the over-voltage protection circuit, wherein the over-voltage protection circuit includes a negative temperature coefficient thermistor (NTC) selectively connected in parallel with the rectifier and the output capacitor and a switch connecting the NTC to the rectifier and the output capacitor when a voltage at an output terminal of the rectifier exceeds a designated threshold, and disconnecting the NTC from the rectifier and the output capacitor when the voltage at the output terminal of the rectifier is less than or equal to the designated threshold.
-
公开(公告)号：US20240429743A1
公开(公告)日：2024-12-26
申请号：US18813660
申请日：2024-08-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaehyun PARK , Beomwoo GU , Joonhong KIM , Jaeseok PARK , Sungku YEO , Youngho RYU
Abstract: According to various embodiments, a cover device capable of being coupled to a wireless power-receiving unit comprising circuitry configured to receive wireless power from a wireless power-transmitting unit comprising circuitry may comprise: a first capacitor; a first coil connected to the first capacitor; a ferrite sheet arranged, on at least a portion of the first coil, in the coupling direction between the wireless power-receiving unit and the cover device; and a metal sheet arranged, on at least a portion of the ferrite sheet, in the coupling direction between the wireless power-receiving unit and the cover device. The first capacitor and the first coil can form a closed loop. A first resonance frequency of the first coil can be higher than a second resonance frequency of a second coil of the wireless power-receiving unit.
-
18.发明公开公开(公告)号：US20240055901A1
公开(公告)日：2024-02-15
申请号：US18364403
申请日：2023-08-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Beomwoo GU , Jaehyun PARK , Jaeseok PARK , Kangho BYUN
CPC classification number: H02J50/12 , H03H7/38 , H03H7/1741
Abstract: An electronic device for wirelessly transmitting power may include a first resonator including a first coil, a second resonator including a second coil having a different size from the first coil, an impedance matching circuit including at least one capacitor connected through a switch, and a controller. The controller may be configured to identify which one of a first electronic device not mounted on the electronic device and a second electronic device mounted on the electronic device power is to be transmitted to. The controller may be configured to, when power is to be transmitted to the first electronic device, transmit power through the first resonator by opening the switch. The controller may be configured to, when power is to be transmitted to the second electronic device, transmit power through the second resonator by closing the switch.
-
19.发明公开公开(公告)号：US20230402879A1
公开(公告)日：2023-12-14
申请号：US18456176
申请日：2023-08-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaeseok PARK , Jaehyun PARK , Beomwoo GU , Kangho BYUN , Sungku YEO , Youngho RYU , Chongmin LEE , Hyoseok HAN
Abstract: The disclosure provides a wireless power transmitting apparatus and a method for wirelessly transmitting power by the wireless power transmitting apparatus. The wireless power transmitting apparatus according to an example embodiment comprises: a power amplifier; a coil connected to the power amplifier and configured to generate an electromagnetic field based on power received from the power amplifier; an impedance sensing circuit connected between the power amplifier and the coil; at least one auxiliary coil electromagnetically coupled to the coil; and a controller, wherein the controller may be configured to: identify a change in impedance, from a signal sensed through the impedance sensing circuit, and adjust an operation setting of the at least one auxiliary coil based on the identified change in impedance.
-
20.发明公开公开(公告)号：US20230155416A1
公开(公告)日：2023-05-18
申请号：US17987590
申请日：2022-11-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jaehyun PARK , Beomwoo GU , Jaeseok PARK , Kangho BYUN , Jaesun SHIN , Sungku YEO , Youngho RYU
CPC classification number: H02J50/005 , H02J50/12 , H02J50/402 , H03H7/38
Abstract: The disclosure provides a variable wireless power transmitter including a plurality of resonators and a method of controlling the variable wireless power transmitter. A wireless power transmitter of the disclosure may include: a housing; a power amplifier disposed inside the housing; a first resonator including at least one coil and fixed to a first portion of the housing; a second resonator including at least one coil, rotatably disposed at a second portion of the housing, and configured to form a variable angle with the first resonator; a sensor configured to sense a shape change based on rotation of the second resonator; a controller configured to: identify a shape change of the first resonator and the second resonator based on a signal sensed by the sensor, identify whether impedance is matched for the first resonator or the second resonator based on the identification of the shape change, and generate a control signal for impedance matching for the first resonator or the second resonator based on identifying that the impedance is not matched; and a matching circuit including at least one coil and at least one capacitor, electrically coupled between the power amplifier and the first resonator, and configured to perform impedance matching based on the control signal received from the controller.
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.019 seconds)
