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    Apparatus for multi-level switched-capacitor rectification and DC-DC conversion
    32.
    发明授权
    Apparatus for multi-level switched-capacitor rectification and DC-DC conversion 有权
    用于多电平开关电容整流和DC-DC转换的装置

    公开(公告)号：US09450506B2

    公开(公告)日：2016-09-20

    申请号：US14416654

    申请日：2013-08-13

    Applicant: Massachusetts Institute of Technology

    Inventor： David J. Perreault ,  Wei Li ,  Nathaniel Jay T. Salazar

    IPC: H02M7/217

    CPC classification number: H02M7/217

    Abstract: A voltage-step down rectifier topology suitable for integration on a die of an integrated circuit is described. In one embodiment, a switched capacitor rectifier is provided having an architecture such that an input voltage swing of the switched-capacitor rectifier is a factor N times an output voltage where N depends upon the number of stages such that the switched-capacitor rectifier can provide a π/(2N) step-down voltage conversion ratio between an input fundamental ac peak voltage to the output dc voltage. In one embodiment, the rectifier is used in dc-dc conversion. In one embodiment, the rectifier is used in ac power delivery to low-voltage electronics.

    Abstract translation: 描述适用于集成在集成电路的管芯上的电压降压整流器拓扑。 在一个实施例中，提供了开关电容整流器，其具有使得开关电容整流器的输入电压摆幅为输出电压的N倍的结构，其中N取决于级数，使得开关电容整流器可以提供 输入基本交流峰值电压与输出直流电压之间的π/（2N）降压电压转换比。 在一个实施例中，整流器用于dc-dc转换。 在一个实施例中，整流器用于向低压电子设备的交流电力输送。

    Circuits and techniques for interfacing with an electrical grid
    33.
    发明授权
    Circuits and techniques for interfacing with an electrical grid 有权
    与电网接口的电路和技术

    公开(公告)号：US09401664B2

    公开(公告)日：2016-07-26

    申请号：US13795633

    申请日：2013-03-12

    Applicant: Massachusetts Institute of Technology

    Inventor： David J. Perreault ,  Brandon J. Pierquet

    IPC: H02M7/497 ,  H02M7/48 ,  H02M7/797

    CPC classification number: H02M7/497 ,  H02M7/4807 ,  H02M7/797

    Abstract: Circuit topologies and control methods for a multi-phase grid interface are described. In at least one embodiment, a power conversion circuit is provided that includes an inverter stage, a transformer stage, and a cycloconverter stage. The cycloconverter stage may include one cycloconverter circuit for each of multiple phases associated with a multi-phase grid. In some embodiments, each cycloconverter circuit may include first and second half-bridge circuits coupled back-to-back.

    Abstract translation: 描述了多相电网接口的电路拓扑和控制方法。 在至少一个实施例中，提供了一种功率转换电路，其包括逆变器级，变压器级和循环变换器级。 循环换流器级可以包括用于与多相电网相关联的多个相中的每一个的一个循环换流器电路。 在一些实施例中，每个循环换流器电路可以包括背靠背耦合的第一和第二半桥电路。

    Power Converter With Capacitive Energy Transfer And Fast Dynamic Response
    34.
    发明申请
    Power Converter With Capacitive Energy Transfer And Fast Dynamic Response 有权
    电力转换器具有电容性能量传递和快速动态响应

    公开(公告)号：US20150280553A1

    公开(公告)日：2015-10-01

    申请号：US14708903

    申请日：2015-05-11

    Applicant: Massachusetts Institute of Technology

    Inventor： David M. Giuliano ,  David J. Perreault ,  Robert C.N. Pilawa-Podgurski

    IPC: H02M3/155

    CPC classification number: H02M3/158 ,  H02M3/07 ,  H02M3/155 ,  H02M2001/007

    Abstract: A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices.

    Abstract translation: 用于提供高功率密度功率转换的A转换器电路和相关技术包括耦合到磁转换器（或调节）级的可重构开关电容器变换级。 电路和技术在宽输入电压范围或宽输出电压范围内实现高性能。 该转换器可用于例如便携式电池供电装置中的逻辑电路。

    Multiway lossless power combining and outphasing incorporating transmission lines
    35.
    发明授权
    Multiway lossless power combining and outphasing incorporating transmission lines 有权
    多路无损耗功率组合和外置输电线路

    公开(公告)号：US09141832B2

    公开(公告)日：2015-09-22

    申请号：US13837009

    申请日：2013-03-15

    Applicant: Massachusetts Institute of Technology

    Inventor： David J. Perreault ,  Alexander Sergeev Jurkov ,  Taylor W. Barton

    IPC: H03F3/68 ,  G06G7/12 ,  H03F3/19 ,  H03F1/02 ,  H03F1/56

    CPC classification number: G06G7/12 ,  H03F1/0294 ,  H03F1/56 ,  H03F3/19

    Abstract: A power combining and outphasing system and related techniques for simultaneously providing both wide-bandwidth linear amplification and high average efficiency is described. Providing linear amplification encompasses the ability to dynamically control an RF output power level over a wide range while still operating over a wide frequency bandwidth. The system and techniques described herein also operate to maintain high efficiency across a wide range of output power levels, such that a high average efficiency can be achieved for highly modulated output waveforms.

    Abstract translation: 描述了同时提供宽带宽线性放大和高平均效率的功率组合和外相系统及相关技术。 提供线性放大包括在宽范围内动态地控制RF输出功率电平同时仍然在宽频带上工作的能力。 本文描述的系统和技术还可以在宽范围的输出功率电平下保持高效率，使得可以实现高调制输出波形的高平均效率。

    PERMANENT MAGNET HYBRID CORE MAGNETICS
    38.
    发明申请
    PERMANENT MAGNET HYBRID CORE MAGNETICS 有权

    公开(公告)号：US20250118479A1

    公开(公告)日：2025-04-10

    申请号：US18983181

    申请日：2024-12-16

    Applicant: The Trustees of Dartmouth College ,  Massachusetts Institute of Technology ,  Murata Manufacturing Co., Ltd.

    Inventor： Charles R. Sullivan ,  David J. Perreault ,  Rachel S. Yang ,  Andrew B. Nadler ,  David Giuliano

    IPC: H01F27/255

    Abstract: Disclosed embodiments may include systems and methods of a permanent magnet (PM) hybrid core inductor and fabrication methods thereof. The permanent magnet hybrid core may include a first set of members comprising a soft magnetic material, the first set of members forming a first gap between two end faces of the first set of members, and a second set of members comprising a permanent magnetic material and located adjacent to the first set of members, wherein the second set of members provides at least a partially parallel path to the first set of members for flow of magnetic flux lines. Some embodiments may include an inductor comprising the permanent magnet hybrid core, or a power conversion circuit including a switched capacitor circuit and a switching regulator, the switching regulator including an inductance, the inductance comprising an electrical conductor wound around a permanent magnet hybrid core.

    Wide-operating-range resonant-transition soft-switched converter
    40.
    发明授权
    Wide-operating-range resonant-transition soft-switched converter 有权

    公开(公告)号：US10700589B2

    公开(公告)日：2020-06-30

    申请号：US16089104

    申请日：2017-04-28

    Applicant: Massachusetts Institute of Technology

    Inventor： David J. Perreault ,  Alex J. Hanson ,  Seungbum Lim ,  Rachel S. Yang

    IPC: H02M3/158 ,  H02M1/08 ,  H02M1/44 ,  H02M1/00 ,  H02M1/42

    Abstract: In accordance with the concepts, circuits and techniques described herein, a converter circuit is provided having multiple half-bridge switching cells that can be selectively controlled using one or more switching patterns to convert a source voltage to a desired output voltage over wide voltage and power ranges while maintaining zero-voltage switching and/or zero-current switching. The converter circuit includes capacitive elements disposed between center switching nodes of the half-bridge switching cells and fixed potentials and a magnetic energy storage element coupling the center switching nodes of first and second half-bridge switching cells. A controller is coupled to the converter circuit to monitor, control and apply one or more switching patterns the half-bridge switching cells such that components of the half-bridge switching cells are switched having a minimal or zero voltage (or current) across them.

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