公开(公告)号：US12036893B2

公开(公告)日：2024-07-16

申请号：US17570057

申请日：2022-01-06

Applicant: DENSO CORPORATION

Inventor： Naoto Kobayashi ,  Syuji Kurauchi ,  Yuuichi Handa

IPC: B60L58/27 ,  B60L53/60 ,  B60L58/25 ,  H01M10/625 ,  H01M10/633 ,  H01M10/6567 ,  H01M10/6571 ,  H02J7/00 ,  H02M3/00 ,  H02M3/335

CPC classification number: B60L58/27 ,  B60L53/60 ,  B60L58/25 ,  H01M10/625 ,  H01M10/633 ,  H01M10/6567 ,  H01M10/6571 ,  H02J7/007192 ,  H02M3/00 ,  H02M3/335 ,  B60L2210/10 ,  H01M2220/20 ,  H02M3/33573

Abstract: A power supply system includes a power conversion circuit that is connectable to a power storage unit. The power supply system includes a control unit and a heat transferring unit. The control unit supplies a current between the power storage unit and the power conversion circuit by performing on-off control of a switch that configures the power conversion circuit. The heat transferring unit absorbs heat that is generated in the power conversion circuit in accompaniment with the on-off control of the switch and transfers the heat to a temperature-increase target element. The control unit performs temperature-increase mode control in which the switch is on-off controlled such that an amount of heat that is generated in the power conversion circuit is increased when a temperature-increase request for the temperature-increase target element is present, compared to when the temperature-increase request is not present.

公开(公告)号：US11942864B2

公开(公告)日：2024-03-26

申请号：US17414348

申请日：2021-05-13

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Wenfang Li

IPC: H02M3/158 ,  G09G3/00 ,  H02M3/00 ,  H02M5/00 ,  H02M7/00

CPC classification number: H02M3/158 ,  G09G3/006 ,  H02M3/1584 ,  G09G2330/12 ,  H02M3/00 ,  H02M3/1582 ,  H02M5/00 ,  H02M7/00

Abstract: A voltage conversion circuit and a display device are provided. The voltage conversion circuit includes a voltage conversion module, a comparison module, and a control module. The voltage conversion module includes at least two voltage conversion units, and the voltage conversion unit converts the input voltage into a target voltage. The comparison module compares each of testing voltages with a reference voltage to generate a feedback signal. The control module receives the feedback signal and controls the voltage conversion unit to convert the input voltage to the target voltage based on the feedback signal.

公开(公告)号：US11664724B1

公开(公告)日：2023-05-30

申请号：US17690674

申请日：2022-03-09

Applicant: Vicor Corporation

Inventor： Patrizio Vinciarelli

IPC: H02M3/00 ,  H02M1/00

CPC classification number: H02M3/00 ,  H02M1/0019

Abstract: A power system includes a power conversion stage that receives power from an input source and delivers power to a load via a power distribution bus. The power distribution bus may include a DC transformer such as a fixed ratio bus converter or VTM having an equivalent series resistance. A control system samples the voltage delivered by the power conversion stage at a location close to the output of the power conversion stage, and the load voltage at a location close to the load. The samples may be synchronized by means of a data bus that provides communication between a control device and an output monitor. Synchronization may be accomplished within a sampling period that is short relative to changes in the voltages and currents. Each set of samples may be used to determine a value of the bus resistance. Multiple samples may be averaged to improve accuracy in the determination. The determined bus resistance, including the equivalent series resistance of any bus converter, may be used to introduce a negative resistance characteristic in the power conversion stage as a way of compensating for the actual bus resistance without resorting to full bandwidth feedback from the load.

公开(公告)号：US20230156964A1

公开(公告)日：2023-05-18

申请号：US17919321

申请日：2021-04-16

Applicant: LG INNOTEK CO., LTD.

Inventor： Yong Joo LEE ,  Mi Sun LEE ,  Ju Young JANG

IPC: H05K7/20 ,  H02M3/00

CPC classification number: H05K7/20336 ,  H02M3/00 ,  H05K7/20936

Abstract: A heat sink according to one embodiment of the present invention comprises: a main heat sink; a heat pipe mounted in a groove formed on one surface of the main heat sink; a heat dissipation member which is formed above the heat pipe and transfers heat generated from a heat generation component to the heat pipe; and an elastic member which is mounted in a space formed inside the heat dissipation member and applies pressure to the main heat sink.

公开(公告)号：US20180367039A1

公开(公告)日：2018-12-20

申请号：US16116520

申请日：2018-08-29

Applicant: KINETIC TECHNOLOGIES ,  SILICON FIDELITY, INC.

Inventor： Farshid IRAVANI ,  Kin SHUM ,  Jan NILSSON ,  William Robert PELLETIER

IPC: H02M3/158 ,  H02M3/00

CPC classification number: H02M3/158 ,  H01L2224/16225 ,  H01L2224/48091 ,  H02M3/00 ,  H02M3/1588 ,  Y02B70/1466 ,  H01L2924/00014

Abstract: A switching regulator may comprise an inductor housed in an inductor housing, a wire electrically coupled to the inductor and housed in the inductor housing, an electrical component including a terminal, and a board including a board trace. The board trace may electrically couple the terminal with first wire. The electrical component and the inductor housing may be attached to the board. The attachment of the inductor housing to the board may create a space between the inductor housing and the board. The electrical component may be disposed within the space.

公开(公告)号：US10084316B2

公开(公告)日：2018-09-25

申请号：US15105191

申请日：2014-01-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Thomas P Sawyers

IPC: B60L11/18 ,  B60L3/00 ,  H01M10/42 ,  H01M10/48 ,  H02J3/38 ,  H02M3/00 ,  H02M7/04 ,  H02J1/12 ,  H02J3/48 ,  H02M1/00

CPC classification number: H02J3/385 ,  H02J1/12 ,  H02J3/387 ,  H02J3/48 ,  H02M3/00 ,  H02M7/04 ,  H02M2001/0025 ,  H02M2001/007

Abstract: One example of a device includes an output terminal to electrically couple to a load, a first input terminal to electrically couple to a first voltage source, and a blocking rectifier electrically coupled between the first input terminal and the output terminal. The device includes a second input terminal to electrically couple to a second voltage source. The second input terminal is electrically coupled to the output terminal. The device includes a control circuit to control the second voltage source to prevent a voltage at the output terminal from exceeding a voltage at the first input terminal and to deliver power to the load in place of power delivered by the first voltage source.

公开(公告)号：US10063149B2

公开(公告)日：2018-08-28

申请号：US15631811

申请日：2017-06-23

Applicant: Apple Inc.

Inventor： Sunil M. Akre ,  Suresh B. Kariyadan ,  Vincent W. Trimeloni

IPC: H02M3/158 ,  H02M1/084 ,  H03K7/08

CPC classification number: H02M3/1584 ,  H02M1/084 ,  H02M3/00 ,  H02M2003/1586 ,  H03K7/08

Abstract: A module stack includes a lower module, a middle module above the lower module, and an upper module above the middle module. The lower module has power stage control circuitry configured to convert a PWM input signal into phase driver control signals, and power stages to be controlled by the phase driver control signals, respectively. The middle module has phase inductors each having a respective winding and a respective magnetic core. The respective winding has one end joined to a respective one of the power stages in the lower module and another end joined to a common node in the middle module. The upper module has a current sense resistor that has one end joined to the common node in the middle module and another end joined to an output node in the upper module. Other embodiments are also described and claimed.

公开(公告)号：US10056818B2

公开(公告)日：2018-08-21

申请号：US15657578

申请日：2017-07-24

Applicant: Delta Electronics (Shanghai) CO., LTD

Inventor： Guojin Xu ,  Guoqiao Shen ,  Jinfa Zhang

IPC: G05F1/00 ,  G05F1/565 ,  H02M1/00

CPC classification number: H02M1/00 ,  H02M3/00 ,  H02M3/158 ,  H02M2001/0003 ,  H02M2001/0074

Abstract: A series-parallel converter system includes: a first set of parallel circuitries including a plurality of first circuitries in parallel with each other; a second set of parallel circuitries including a plurality of second circuits in parallel with each other, the second circuit being controlled in a second control method; wherein an input end of the first set of parallel circuitries and an input end of the second set of parallel circuitries are connected in series with an input power supply; and wherein the first circuitry in the first set of parallel circuitries includes: a first circuit being controlled in a first control method; and a first control circuitry electrically connected with the first circuit and configured to generate a first control signal for controlling the first circuit based on a variable intercept compensation, and an input voltage, a first output current and a virtual impedance of the first circuit.

公开(公告)号：US10038334B2

公开(公告)日：2018-07-31

申请号：US15374413

申请日：2016-12-09

Applicant: FUJI ELECTRIC CO., LTD.

Inventor： Seitaro Banno

IPC: G06F1/30 ,  H02J1/12 ,  H02J9/00 ,  H02M3/00 ,  H02M1/32 ,  H02M7/04 ,  H02M1/00

CPC classification number: H02J9/00 ,  G06F1/30 ,  H02J1/108 ,  H02J1/12 ,  H02J9/061 ,  H02M1/32 ,  H02M3/00 ,  H02M7/04 ,  H02M2001/007

Abstract: A direct current power supply device control method and control device such that output currents of each direct current power supply unit are balanced with high accuracy using droop control that reflects wiring resistance from a multiple of direct current power supply units operated in parallel to a load. A droop characteristic of each of power supply units is expressed using wiring resistance between output terminals of the power supply units, output voltage, output current, an output voltage command value, and a droop coefficient, and the wiring resistance is calculated in advance using the output voltage and output current of each unit and voltage of an output point. When the units are operated in parallel, an output voltage command value of each unit is calculated using output current of the same magnitude common to all units, the output voltage of each unit, the droop coefficient, and the wiring resistance.

公开(公告)号：US09991681B2

公开(公告)日：2018-06-05

申请号：US14568330

申请日：2014-12-12

Applicant: Federal-Mogul Ignition Company

Inventor： John Antony Burrows

IPC: H01T19/00 ,  H01T15/00 ,  F02P23/04 ,  G01M15/02 ,  G01N27/02 ,  H02M3/00 ,  F02P3/04 ,  F02P5/15 ,  F02P17/00

CPC classification number: H01T19/00 ,  F02N2300/2011 ,  F02P3/0407 ,  F02P5/1502 ,  F02P17/00 ,  F02P23/04 ,  G01M15/02 ,  G01N27/02 ,  H01T15/00 ,  H02M3/00

Abstract: A corona ignition system for maintaining a drive frequency approximately equal to the resonant frequency of a corona igniter is provided. The system includes a current sensor, at least two cascaded timers which are electrically independent of a controller, and at least two switches. During operation, the current sensor measures the current at an input of the corona igniter. A conditioned current signal including information related to the zero crossings of the current ultimately activates a pair of the timers which in turn control and drive one of the switches. The conditioned current signal is not processed by the controller before driving the switch.