Output combination of transistors in an MRT radio-frequency power amplifier

    公开(公告)号:US10330753B2

    公开(公告)日:2019-06-25

    申请号:US14971093

    申请日:2015-12-16

    申请人: Adam Albrecht

    发明人: Adam Albrecht

    IPC分类号: G01V3/00 G01R33/36

    摘要: A power electronic unit for an amplifier of an imaging magnetic resonance tomography (MRT) system is provided. The power electronic unit includes at least one printed circuit board, on which a plurality of transistors are arranged. Ports (e.g., drain and source) of the plurality of transistors are connected together by electrically conductive connections, and the plurality of transistors are all arranged on one side of the at least one printed circuit board. An output line or cable parallel to the connections, at least in sections, runs on the opposing side of the printed circuit board and may be connected or is connected with or without further interconnected elements (e.g., a balun) to transmitting coils of the MRT.

    Shielding with integrated cooling

    公开(公告)号:US10126381B2

    公开(公告)日:2018-11-13

    申请号:US14456413

    申请日:2014-08-11

    申请人: Adam Albrecht

    发明人: Adam Albrecht

    摘要: An apparatus for cooling an electrical component includes a circuit board with the electrical component disposed on the circuit board. The apparatus includes a cover disposed on the circuit board. The cover and the circuit board form a closed cavity in which the electronic component is disposed. The cavity has a first opening for introduction of a fluid and a second opening for discharge of a fluid.

    Device for power measurement and magnetic resonance device
    3.
    发明授权
    Device for power measurement and magnetic resonance device 有权
    功率测量装置和磁共振装置

    公开(公告)号:US09297869B2

    公开(公告)日:2016-03-29

    申请号:US13622926

    申请日:2012-09-19

    申请人: Adam Albrecht

    发明人: Adam Albrecht

    IPC分类号: G01R33/28 G01R19/00 G01R33/36

    CPC分类号: G01R33/3614 G01R33/288

    摘要: A device for power measurement for the purposes of plausibility checking and/or calibration of a primary power measurement device on a power amplifier of a magnetic resonance device is provided. The device includes a circulator arranged between an output of the power amplifier and a switching device for connection of the power amplifier to a transmit antenna. A first input of the circulator is connected to the output of the power amplifier, a second input of the circulator is connected to the switching device, and a third input of the circulator is connected to a secondary power measurement device configured for measurement of a signal reflected on the open switching device or the transmit antenna.

    摘要翻译: 提供了用于功率测量的装置,用于在磁共振装置的功率放大器上的主功率测量装置的合理性检查和/或校准。 该装置包括布置在功率放大器的输出端和用于将功率放大器连接到发射天线的开关装置之间的循环器。 循环器的第一输入端连接到功率放大器的输出端,循环器的第二输入端连接到开关器件,循环器的第三输入端连接到辅助功率测量器件,其被配置用于测量信号 在开放式开关装置或发射天线上反射。

    Power Amplifier Device for a Magnetic Resonance Device and Magnetic Resonance Device
    4.
    发明申请
    Power Amplifier Device for a Magnetic Resonance Device and Magnetic Resonance Device 审中-公开
    用于磁共振器件和磁共振器件的功率放大器器件

    公开(公告)号:US20150168514A1

    公开(公告)日:2015-06-18

    申请号:US14574275

    申请日:2014-12-17

    申请人: Adam Albrecht

    发明人: Adam Albrecht

    摘要: A power amplifier device for a magnetic resonance device includes a circuit board with at least one power amplifier module, and at least one electronics structure including coupled conductor paths arranged on opposing sides of the circuit board. The power amplifier device also includes a cooling plate operable for cooling components on the circuit board that heat up during operation and abutting the circuit board on one side. The cooling plate has a depression that follows the course of the conductor path and faces the conductor path in the region of the conductor path of the electronics structure that is arranged on the side of the circuit board facing the cooling plate.

    摘要翻译: 一种用于磁共振装置的功率放大器装置包括具有至少一个功率放大器模块的电路板,以及包括布置在电路板的相对侧上的耦合的导体路径的至少一个电子结构。 功率放大器装置还包括冷却板,其可操作用于冷却电路板上的组件,其在操作期间加热并在一侧邻接电路板。 冷却板具有跟随导体路​​径的过程的凹陷,并且面对设置在面向冷却板的电路板一侧的电子结构的导体路径的区域中的导体路径。

    Power amplifier for a magnetic resonance device
    5.
    发明授权
    Power amplifier for a magnetic resonance device 有权
    用于磁共振装置的功率放大器

    公开(公告)号:US08618802B2

    公开(公告)日:2013-12-31

    申请号:US13189315

    申请日:2011-07-22

    IPC分类号: G01V3/00

    CPC分类号: G01R33/3614 G01R33/34007

    摘要: A power amplifier unit for a magnetic resonance device includes at least two power amplifier modules. Symmetrical output signals from the at least two power amplifier modules are fed to a shared balun. The shared balun is provided on a printed circuit board (PCB) and is realized in a unit with the at least two power amplifier modules. The balun is configured to asymmetrize a sum signal.

    摘要翻译: 用于磁共振装置的功率放大器单元包括至少两个功率放大器模块。 来自至少两个功率放大器模块的对称输出信号被馈送到共享平衡 - 不平衡变换器。 共享平衡 - 不平衡变压器设置在印刷电路板(PCB)上,并且与至少两个功率放大器模块一起实现。 平衡 - 不平衡变换器被配置为使和信号不对称。

    Method and reference signaling arrangement for supplying a plurality of system components with a common reference signal
    6.
    发明授权
    Method and reference signaling arrangement for supplying a plurality of system components with a common reference signal 有权
    用于向多个系统组件提供公共参考信号的方法和参考信令装置

    公开(公告)号:US08421001B2

    公开(公告)日:2013-04-16

    申请号:US11687049

    申请日:2007-03-16

    申请人: Adam Albrecht

    发明人: Adam Albrecht

    IPC分类号: G01J1/04

    摘要: A method for supplying a plurality of system components of a system with a common reference signal is described, in which an electrical output reference signal is created by a reference signal generator and a number of optical reference signals are generated using the electrical output reference signal. The optical reference signals are transmitted to the individual system components, and an electrical input reference signal for the corresponding system component is generated at or in the system component using the transferred optical reference signal. A corresponding reference signaling arrangement, a reference signal transmission facility, an electro-technical system having a number of system components and a system component for the system are also provided.

    摘要翻译: 描述了一种用于提供具有公共参考信号的系统的多个系统部件的方法,其中由参考信号发生器产生电输出参考信号,并且使用电输出参考信号产生多个光参考信号。 光参考信号被发送到各个系统组件,并且使用传送的光参考信号在系统组件处或系统组件中产生用于相应系统组件的电输入参考信号。 还提供了相应的参考信令布置,参考信号传输设施,具有多个系统组件的电子技术系统和用于该系统的系统组件。

    POWER ELECTRONICS ASSEMBLY FOR A MAGNETIC RESONANCE DEVICE
    7.
    发明申请
    POWER ELECTRONICS ASSEMBLY FOR A MAGNETIC RESONANCE DEVICE 有权
    用于磁共振装置的功率电子组件

    公开(公告)号:US20120188717A1

    公开(公告)日:2012-07-26

    申请号:US13189302

    申请日:2011-07-22

    IPC分类号: H05K7/20

    摘要: A power electronics assembly for a magnetic resonance device includes a housing and at least one printed circuit board (PCB) arranged in the housing with at least one power electronics component to be cooled. The PCB has an at least one millimeter thick backside layer that may be made of copper. The power electronics assembly also includes a stabilizing cooling plate configured as part of the housing and/or the housing includes at least one coolant channel open on at least one side, so that the PCB mounted on the cooling plate comes into direct contact with coolant guided in the coolant channel in an area of the power electronics components with the backside layer.

    摘要翻译: 用于磁共振装置的功率电子组件包括壳体和布置在壳体中的至少一个印刷电路板(PCB),具有要冷却的至少一个电力电子部件。 PCB具有可以由铜制成的至少一毫米厚的背面层。 电力电子组件还包括被配置为壳体的一部分的稳定冷却板和/或壳体包括在至少一侧上敞开的至少一个冷却剂通道,使得安装在冷却板上的PCB与冷却剂引导 在具有背面层的电力电子部件的区域中的冷却剂通道中。

    POWER AMPLIFIER FOR A MAGNETIC RESONANCE DEVICE
    8.
    发明申请
    POWER AMPLIFIER FOR A MAGNETIC RESONANCE DEVICE 有权
    用于磁共振装置的功率放大器

    公开(公告)号:US20120187951A1

    公开(公告)日:2012-07-26

    申请号:US13189315

    申请日:2011-07-22

    IPC分类号: G01R33/34 H03F1/00

    CPC分类号: G01R33/3614 G01R33/34007

    摘要: A power amplifier unit for a magnetic resonance device includes at least two power amplifier modules. Symmetrical output signals from the at least two power amplifier modules are fed to a shared balun. The shared balun is provided on a printed circuit board (PCB) and is realized in a unit with the at least two power amplifier modules. The balun is configured to asymmetrize a sum signal.

    摘要翻译: 用于磁共振装置的功率放大器单元包括至少两个功率放大器模块。 来自至少两个功率放大器模块的对称输出信号被馈送到共享平衡 - 不平衡变压器。 共享平衡 - 不平衡变压器设置在印刷电路板(PCB)上,并且与至少两个功率放大器模块一起实现。 平衡 - 不平衡变换器被配置为使和信号不对称。

    Amplifier device
    9.
    发明授权
    Amplifier device 有权
    放大器装置

    公开(公告)号:US07821336B2

    公开(公告)日:2010-10-26

    申请号:US11953111

    申请日:2007-12-10

    IPC分类号: H03G3/00 G01V3/00

    CPC分类号: H03F1/0244

    摘要: An amplifier device has an amplifier circuit, an energy supply device, a switching matrix and a control device. A radio-frequency, low-energy signal pulse can be amplified into a high-energy power pulse by the amplifier circuit. The amplifier circuit is supplied with electrical energy by the energy supply device. The energy supply device has a number of electrical energy sources that are separated in terms of potential relative to one another in a state in which they are not connected to the amplifier circuit. The electrical energy sources can be selectively connected to the amplifier circuit by the switching matrix. The switching state of the switching matrix can be dynamically set for this purpose by the control device.

    摘要翻译: 放大器装置具有放大器电路,能量供给装置,开关矩阵和控制装置。 射频,低能量信号脉冲可以由放大器电路放大为高能量功率脉冲。 放大器电路由能量供给装置供电。 能量供给装置具有多个电能源,它们在未连接到放大器电路的状态下相对于彼此分离。 电能可以通过开关矩阵选择性地连接到放大器电路。 开关矩阵的切换状态可以通过控制装置动态设定。

    MRT-RF push pull power modules
    10.
    发明授权
    MRT-RF push pull power modules 有权
    MRT-RF推拉电源模块

    公开(公告)号:US09404982B2

    公开(公告)日:2016-08-02

    申请号:US13935560

    申请日:2013-07-05

    申请人: Adam Albrecht

    发明人: Adam Albrecht

    IPC分类号: G01V3/00 G01R33/28 G01R33/36

    CPC分类号: G01R33/28 G01R33/3614

    摘要: A circuit arrangement including a plurality of amplifier stages to amplify an electrical RF signal for a magnetic resonance tomography device is provided. The plurality of amplifier stages is arranged on at least one circuit board. A circuit board of the at least one circuit board surrounds a cooling pipe.

    摘要翻译: 提供了包括用于放大用于磁共振断层摄影装置的电RF信号的多个放大器级的电路装置。 多个放大器级布置在至少一个电路板上。 所述至少一个电路板的电路板包围冷却管。