公开(公告)号：US3317805A

公开(公告)日：1967-05-02

申请号：US31804963

申请日：1963-10-22

Applicant: AMERICAN MACH & FOUNDRY

Inventor： MARTIN KAY ,  THOMAS MCCALLUM

IPC: G06F7/68 ,  H02M1/084 ,  H02P27/06

CPC classification number: H02P27/06 ,  G06F7/68 ,  H02M1/0845 ,  H02P27/047 ,  H02P2201/03

公开(公告)号：US20240235368A1

公开(公告)日：2024-07-11

申请号：US18401151

申请日：2023-12-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SUNGWOO LEE ,  SUNGWOO MOON ,  DAEWOONG CHO ,  JUNGWOOK HEO

IPC: H02M1/084 ,  H02J7/06 ,  H02M1/00 ,  H02M3/158 ,  H02M7/5395

CPC classification number: H02M1/0845 ,  H02J7/06 ,  H02M1/0054 ,  H02M1/0095 ,  H02M3/1582 ,  H02M7/5395 ,  H02J2207/20

Abstract: A charger integrated circuit includes a switching converter and a controller. The switching converter includes a plurality of transistors including a first transistor, a second transistor, a fourth transistor, and a sixth transistor, which are serially connected to a first input/output node, a third transistor and a fifth transistor serially connected between the first connection node and the second connection node, a plurality of inductors including a first inductor connected to a node disposed between the second transistor and the fourth transistor and a load node and a second inductor connected between a node disposed between the third transistor and the fifth transistor and a second input/output node, and a capacitor connected between a first connection node and a second connection node.

公开(公告)号：US11949343B2

公开(公告)日：2024-04-02

申请号：US17130779

申请日：2020-12-22

Applicant: Inertech IP LLC

Inventor： Subrata K Mondal

IPC: H02M7/487 ,  H02J9/06 ,  H02M3/04 ,  H02M7/5387 ,  H02M1/084 ,  H02M7/483 ,  H02M7/49

CPC classification number: H02M7/487 ,  H02J9/061 ,  H02M3/04 ,  H02M1/0845 ,  H02M7/4835 ,  H02M7/49 ,  H02M7/53873 ,  H02M7/53875 ,  H02M7/53876

Abstract: Control systems for a multi-level diode-clamped inverter and corresponding methods include a processor and a digital logic circuit forming a hybrid controller. The processor identifies sector and region locations based on a sampled reference voltage vector V* and angle Θe*. The processor then selects predefined switching sequences and pre-calculated turn-on time values based on the identified sector and region locations. The digital logic circuit generates PWM switching signals for driving power transistors of a multi-level diode-clamped inverter based on the turn-on time values and the selected switching sequences. The control system takes care of the existing capacitor voltage balancing issues of multi-level diode-clamped inverters while supplying both active and reactive power to an IT load. Using the control system, one can generate a symmetrical PWM signal that fully covers the linear under-modulation region.

公开(公告)号：US11942925B2

公开(公告)日：2024-03-26

申请号：US18141945

申请日：2023-05-01

Applicant: Skyworks Solutions, Inc.

Inventor： James Edward Heckroth ,  Ion Constantin Tesu

IPC: H03K3/00 ,  H02M1/084 ,  H02M7/537 ,  H03K17/0812 ,  H03K17/16 ,  H03K17/687

CPC classification number: H03K17/08122 ,  H02M1/0845 ,  H02M7/537 ,  H03K17/163 ,  H03K17/687

Abstract: A method for operating a gate driver system includes measuring a first parameter according to a first priority schedule synchronously to a first edge of a switching signal generated by a gate driver integrated circuit and having a variable duty cycle. The method includes after measuring the first parameter of the gate driver system and prior to a second edge of the switching signal, measuring at least a second parameter of the gate driver system according to a first round-robin schedule synchronously to the first edge of the switching signal.

公开(公告)号：US11942867B2

公开(公告)日：2024-03-26

申请号：US18086874

申请日：2022-12-22

Applicant: Silergy Semiconductor Technology (Hangzhou) LTD

Inventor： Kaiwei Yao ,  Zhiyuan Shen

IPC: H02M3/158 ,  G01R19/165 ,  G01R19/175 ,  H02M1/084 ,  H02M1/32 ,  H02M1/00

CPC classification number: H02M3/1584 ,  G01R19/16528 ,  G01R19/175 ,  H02M1/0845 ,  H02M1/32 ,  H02M1/0009 ,  H02M1/0025

Abstract: A method of controlling a multi-phase power converter having a plurality of power stage circuits coupled in parallel, can include: obtaining a load current of the multi-phase power converter; enabling corresponding power stage circuits to operate in accordance with the load current, such that a switching frequency is maintained within a predetermined range when the load current changes; and controlling the power stage circuits to operate under different modes in accordance with the load current, such that the switching frequency is maintained within the predetermined range when the load current changes.

公开(公告)号：US20240030833A1

公开(公告)日：2024-01-25

申请号：US18349310

申请日：2023-07-10

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Yusuke SHINTANI

IPC: H02M7/5387 ,  H02M1/084 ,  H02M1/32

CPC classification number: H02M7/53873 ,  H02M1/0845 ,  H02M1/325

Abstract: An inverter including two switching elements of an inverter circuit connected in series to each other, drivers configured to respectively drive switching elements, and protection circuits each configured to transmit an output signal of the driver to each of the switching elements via a first resistor element. The protection circuit includes a second resistor element arranged to be electrically connectable in parallel to a first resistor element and a switch configured to switch between a first state in which electrical parallel connection of the second resistor element to the first resistor element is enabled and a second state in which the connection is cancelled. The protection circuit is configured to determine whether a short-circuit current has been generated in a first pattern or a second pattern and switch the switch to the first state in a case of determining that the short-circuit current of the second pattern has been generated.

公开(公告)号：US11880728B2

公开(公告)日：2024-01-23

申请号：US18296297

申请日：2023-04-05

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John Paul Lesso

IPC: G06G7/00 ,  G06G7/48 ,  H02M1/084 ,  H03M1/06 ,  H03M1/12 ,  G06N3/065

CPC classification number: G06G7/48 ,  G06N3/065 ,  H02M1/0845 ,  H03M1/06 ,  H03M1/12

Abstract: This application relates to computing circuitry, and in particular to analogue computing circuitry suitable for neuromorphic computing. An analogue computation unit for processing data is supplied with a first voltage from a voltage regulator which is operable in a sequence of phases to cyclically regulate the first voltage. A controller is configured to control operation of the voltage regulator and/or the analogue computation unit, such that the analogue computation unit processes data during a plurality of compute periods that avoid times at which the voltage regulator undergoes a phase transition which is one of a predefined set of phase transitions between defined phases in said sequence of phases. This avoids performing computation operations during a phase transition of the voltage regulator that could result in a transient or disturbance in the first voltage, which could adversely affect the computing.

公开(公告)号：US20230421146A1

公开(公告)日：2023-12-28

申请号：US18141945

申请日：2023-05-01

Applicant: Skyworks Solutions, Inc.

Inventor： James Edward Heckroth ,  Ion Constantin Tesu

IPC: H03K17/0812 ,  H02M1/084 ,  H03K17/687 ,  H03K17/16 ,  H02M7/537

CPC classification number: H03K17/08122 ,  H02M1/0845 ,  H02M7/537 ,  H03K17/163 ,  H03K17/687

Abstract: A method for operating a gate driver system includes measuring a first parameter according to a first priority schedule synchronously to a first edge of a switching signal generated by a gate driver integrated circuit and having a variable duty cycle. The method includes after measuring the first parameter of the gate driver system and prior to a second edge of the switching signal, measuring at least a second parameter of the gate driver system according to a first round-robin schedule synchronously to the first edge of the switching signal.

公开(公告)号：US11799378B1

公开(公告)日：2023-10-24

申请号：US18329511

申请日：2023-06-05

Applicant: HEFEI CLT MICROELECTRONICS CO. LTD

Inventor： Lin Cheng ,  Feng Wu ,  Jingyi Yuan ,  Zeguo Liu

IPC: H02M3/158 ,  H02M3/156 ,  H02M1/084 ,  H02M1/00 ,  H02M3/157

CPC classification number: H02M3/1586 ,  H02M1/0019 ,  H02M1/0845 ,  H02M3/157 ,  H02M3/156 ,  H02M3/158 ,  H02M3/1584

Abstract: Multiphase series capacitor DC-DC converters are provided, including: a power stage circuit configured to convert an input DC voltage into a stable DC voltage required by a load, where the power stage circuit includes inductors of two or more phases, and there is a phase difference with a preset interval between inductor currents of phases for alternately charging the load in sequence, and a bidirectional switch is provided between inductors of every two adjacent phases, where when the bidirectional switch is turned on, the inductors of the corresponding two phases charge the load simultaneously; and a load transient response circuit configured to, when a load transient positive step occurs, control one or more bidirectional switches to be turned on to make inductors of two or more corresponding phases charge the load simultaneously. Control methods of such converters are also provided, which can realize fast response to load transient changes.

公开(公告)号：US20230253887A1

公开(公告)日：2023-08-10

申请号：US18159729

申请日：2023-01-26

Applicant: Keithley Instruments, LLC

Inventor： Benjamin J. Yurick

IPC: H02M3/335 ,  H02M1/084 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H02M3/33515 ,  H02M1/0845 ,  H02M1/0012

Abstract: A power supply block has multiple isolated power channels, the power supply comprising an interface magnetic component having multiple windings, each winding connected to a separate one of the isolated channels. A test and measurement instrument has a connector to allow the instrument to connect to a device under test, and a power supply block having multiple isolated power channels, the power supply block comprising an interface magnetic component having multiple windings, each winding connected to a separate one of the isolated power channels.