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公开(公告)号：US09722595B2
公开(公告)日：2017-08-01
申请号：US14983251
申请日：2015-12-29
Applicant: General Electric Company
Inventor： Fengfeng Tao , Michael Joseph Schutten , Jeffrey Joseph Nasadoski , Maja Harfman-Todorovic , John Stanley Glaser
IPC: H03K17/687 , H03K17/16 , H05K3/36 , H03K17/691
CPC classification number: H03K17/162 , H03K17/687 , H03K17/691 , H05K3/36
Abstract: A system includes a SiC semiconductor power device; a power supply board that is configured to provide power to a first gate driver board via a connector; the first gate driver board that is coupled and configured to provide current to the SiC semiconductor power device, wherein the first gate driver board is coupled to the power supply board via the connector, and wherein the first gate driver board is separated from the power supply board; and an interconnect board that is coupled to the first gate driver board, wherein the interconnect board is configured to couple the first gate driver board a second gate driver board.
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公开(公告)号：US20170187277A1
公开(公告)日：2017-06-29
申请号：US14982975
申请日：2015-12-29
Applicant: General Electric Company
Inventor： Paul Michael Szczesny , Rajib Datta , Fengfeng Tao , Jian Dai , Xu She , Tannous Frangieh
IPC: H02M1/088
CPC classification number: H02M1/088
Abstract: A power conversion system may include a plurality of power devices and a sensor operably coupled to at least one of the plurality of power devices and configured to detect a voltage, current, or electromagnetic signature signal associated with the plurality of power devices. The power converter may also include circuitry operably coupled to the plurality of power devices and the sensor. The circuitry may send a respective gate signal to each respective power device of the plurality of power devices, such that each respective gate signal is delayed by a respective compensation delay that is determined for the respective power device based on a respective time delay of the respective power device and a maximum time delay of the plurality of power devices.
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公开(公告)号：US20150023468A1
公开(公告)日：2015-01-22
申请号：US13943857
申请日：2013-07-17
Applicant: General Electric Company
Inventor： Yun Zou , Scott Stephen Zelakiewicz , Fengfeng Tao , Xi Zhang , Timothy Powers , Thomas Edmund Sjoberg , Marc Weasler , Denis Perrillat-Amede
CPC classification number: A61B6/4405
Abstract: A portable x-ray system includes a light weight x-ray head including an x-ray tube and a high voltage (HV) tank, wherein the HV tank comprises a compact voltage multiplier configured to receive a low voltage signal and generate a high voltage signal based on the received low voltage signal. Also, the portable x-ray system includes a carrying case comprising low voltage power electronics coupled to the light weight x-ray head through a low voltage cable, and configured to send the low voltage signal to the light weight x-ray head. In addition, the low voltage power electronics is distributed in a predefined space in the carrying case in such a way that a weight of the light weight x-ray head is counter weighed by a weight of the low voltage power electronics to stabilize the portable x-ray system when the light weight x-ray head is rotated in one or more directions.
Abstract translation: 一种便携式x射线系统包括一个重量轻X射线头，包括一个x射线管和一个高压（HV）的坦克，其中HV坦克包括一个紧凑的电压倍增器，配置成接收低电压信号并产生高电压 基于接收到的低电压信号的信号。 此外，便携式x射线系统包括携带箱，其包括通过低压电缆耦合到轻量级X射线头的低压电力电子设备，并且被配置为将低电压信号发送到轻量级X射线头。 此外，低压电力电子设备以携带箱中的预定空间分布，使得重量轻的X射线头的重量由低压电力电子装置的重量进行称重，以稳定便携式x 当轻型X射线头在一个或多个方向上旋转时，射线系统。
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公开(公告)号：US20140146585A1
公开(公告)日：2014-05-29
申请号：US13688315
申请日：2012-11-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Fengfeng Tao , Maja Harfman Todorovic , Luis Jose Garces , Rui Zhou , Donald Gene Marabell , Robert Louis Steigerwald
CPC classification number: H02M7/538 , H02J3/383 , H02M7/48 , H02M7/5387 , Y02E10/563
Abstract: A power converter is provided. The power converter includes a converter leg including switches for converting power. The power converter also includes a controller for switching the switches using a pulse width modulation technique. The power converter further includes an interface inductor coupled to the converter leg for avoiding a reverse recovery of current in the switches during operation.
Abstract translation: 提供电源转换器。 功率转换器包括转换器支脚，其包括用于转换功率的开关。 功率转换器还包括用于使用脉冲宽度调制技术来切换开关的控制器。 功率转换器还包括耦合到转换器支脚的接口电感器，用于避免在操作期间开关中电流的反向恢复。
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公开(公告)号：US20140112449A1
公开(公告)日：2014-04-24
申请号：US13654584
申请日：2012-10-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yun Zou , Scott Stephen Zelakiewicz , Floribertus P. M. Heukensfeldt Jansen , Mark Alan Frontera , Jeffrey Wayne Eberhard , Fengfeng Tao , Xi Zhang
Abstract: An apparatus and method for providing a predefined x-ray field is presented. Briefly in accordance with one aspect of the present disclosure, the apparatus includes a cathode unit configured to emit electrons within a vacuum chamber. The apparatus further includes an anode unit configured to generate x-rays when the emitted electrons impinge on a target surface of the anode unit. Also, the apparatus includes a collimating unit comprising a primary set of blades disposed in the vacuum chamber at a first distance from the anode unit for collimating the generated x-rays to provide the predefined x-ray field at a detector.
Abstract translation: 提出了一种用于提供预定x射线场的装置和方法。 简要地，根据本公开的一个方面，该装置包括被配置为在真空室内发射电子的阴极单元。 该装置还包括阳极单元，其被配置为当发射的电子撞击阳极单元的目标表面时产生X射线。 此外，该装置包括准直单元，该准直单元包括设置在与阳极单元隔开第一距离的真空室中的初级叶片组，用于准直所产生的X射线以在检测器处提供预定的X射线场。
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Patent Agency Ranking
公开(公告)号：US10585155B2
公开(公告)日：2020-03-10
申请号：US15634598
申请日：2017-06-27
Applicant: General Electric Company
Inventor： Ruxi Wang , Xiaohu Liu , Han Peng , Fengfeng Tao , Juan Antonio Sabate
IPC: G01R33/385 , G01R33/36 , G01R33/422
Abstract: This disclosure regards a magnetic resonance imaging system including a scanner, and gradient drivers. The scanner is to be implemented within a scan room that is shielded from electromagnetic interference. Gradient coils are designed to create a linear gradient in the magnetic field generated in the scanner by a primary magnet. These coils are energized by gradient drivers. The gradient drivers use transformers and other electrical devices in a switching stage configured to generate pulse-width-modulated power. The transformers may have non-magnetic cores to facilitate implementing the gradient drivers within the scan room. The gradient drivers also use a filtering stage which uses inductors and other electrical devices to smooth the pulse-width-modulated power. The inductors within the filters may have non-magnetic cores to facilitate implementing the gradient driver within the scan room. Additionally, an inductor with a hollow wire may be used to circulate fluid to facilitate cooling the gradient driver.
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公开(公告)号：US10185141B2
公开(公告)日：2019-01-22
申请号：US15632002
申请日：2017-06-23
Applicant: General Electric Company
Inventor： Ruxi Wang , Douglas Link , Melissa Freeman , Fengfeng Tao , Juan Antonio Sabate , Eladio Clemente Delgado
Abstract: The present disclosure presents techniques to facilitate improving operation of an electrical system, which includes a bus structure that cascades multiple electrical devices. The bus structure includes a first outer conductive layer implemented as a positive layer; a second outer conductive layer implemented as a negative layer; a first intermediate conductive layer neighboring the first outer conductive layer; a second intermediate conductive layer neighboring the second outer conductive layer; and a third intermediate conductive layer neighboring the second intermediate conductive layer, in which the third intermediate conductive layer is implemented as an inter-device layer that facilitates electrically coupling at least two of the electrical devices in series. The first intermediate conductive layer is implemented as a negative layer and the second intermediate conductive layer is implemented as a positive layer to facilitate reducing stray inductance and/or increasing stray capacitance introduced in the electrical system during operation.
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公开(公告)号：US20180372819A1
公开(公告)日：2018-12-27
申请号：US15634598
申请日：2017-06-27
Applicant: General Electric Company
Inventor： Ruxi Wang , Xiaohu Liu , Han Peng , Fengfeng Tao , Juan Antonio Sabate
IPC: G01R33/385 , G01R33/36
CPC classification number: G01R33/3852 , G01R33/36 , G01R33/3856 , G01R33/422
Abstract: This disclosure regards a magnetic resonance imaging system including a scanner, and gradient drivers. The scanner is to be implemented within a scan room that is shielded from electromagnetic interference. Gradient coils are designed to create a linear gradient in the magnetic field generated in the scanner by a primary magnet. These coils are energized by gradient drivers. The gradient drivers use transformers and other electrical devices in a switching stage configured to generate pulse-width-modulated power. The transformers may have non-magnetic cores to facilitate implementing the gradient drivers within the scan room. The gradient drivers also use a filtering stage which uses inductors and other electrical devices to smooth the pulse-width-modulated power. The inductors within the filters may have non-magnetic cores to facilitate implementing the gradient driver within the scan room. Additionally, an inductor with a hollow wire may be used to circulate fluid to facilitate cooling the gradient driver.
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公开(公告)号：US20180123476A1
公开(公告)日：2018-05-03
申请号：US15336413
申请日：2016-10-27
Applicant: General Electric Company
Inventor： Michael Joseph Schutten , Fengfeng Tao , Maja Harfman-Todorovic , Ravisekhar Nadimpalli Raju , Philip Michael Cioffi , Ljubisa Dragoljub Stevanovic
CPC classification number: H02M7/537 , H05K1/0218 , H05K1/0243 , H05K3/30 , H05K3/36
Abstract: A power module includes an input bus, a switching device, and an output bus. The input bus includes a first coating of a high permeability magnetic conductive material and is configured to receive input direct current (DC) electrical power from an electrical power source. The switching device is electrically coupled to the first input bus, and is configured to selectively connect and disconnect to facilitate converting the input DC electrical power into output alternating current (AC) electrical power. The output bus includes a second coating of the high permeability magnetic conductive material, and is electrically coupled to the first switching device. The output bus is configured to supply the output AC electrical power to an electrical load.
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公开(公告)号：US20170366006A1
公开(公告)日：2017-12-21
申请号：US15673520
申请日：2017-08-10
Applicant: General Electric Company
Inventor： Fengfeng Tao , Ahmed Elasser , Song Chi , Maja Harfman Todorovic
CPC classification number: H02J1/102 , H02J3/383 , H02J7/35 , H02J9/061 , Y02B10/72 , Y02E10/563 , Y02E10/566
Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.
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