公开(公告)号：US09354255B2

公开(公告)日：2016-05-31

申请号：US13429200

申请日：2012-03-23

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: G01V3/00 ,  G01R1/30 ,  G01R33/34 ,  G01R33/36 ,  G01R21/00

CPC classification number: G01R1/30 ,  G01R21/00 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/3614 ,  H03F21/00 ,  H05K1/0272 ,  H05K1/0306 ,  H05K2201/064 ,  H05K2201/0715 ,  H05K2201/1003 ,  H05K2201/10166

Abstract: An output stage module for a power amplifier device (e.g., for a power amplifier device of a transmit unit of a magnetic resonance device) includes a housing and a carrier that is arranged within the housing. The carrier is made of a non-electrically-conducting, thermally-conducting material with low electrical losses (e.g., a ceramic carrier). At least two transistor dies are arranged on the carrier. At least one transistor, in each case, is assigned to a phase of a symmetrical input signal. In and/or on the carrier, a first conductor structure connecting (e.g., inductively) a drain output of the at least two transistor dies to an output signal and to second conductor structures each conducting an input signal to at least one gate input of the at least two transistor dies are provided. At least one cooling channel routed adjacent to at least one transistor die of the at least two transistor dies is provided.

Abstract translation: 用于功率放大器装置（例如，用于磁共振装置的发射单元的功率放大器装置）的输出级模块包括壳体和布置在壳体内的载体。 载体由具有低电损耗的非导电导热材料（例如，陶瓷载体）制成。 在载体上布置至少两个晶体管管芯。 在每种情况下，至少一个晶体管被分配给对称输入信号的相位。 在载体中和/或载体上，将至少两个晶体管管芯的漏极输出连接（例如，感应地）到输出信号的第一导体结构和每个将输入信号传导到至少一个栅极输入的第二导体结构 提供至少两个晶体管管芯。 提供了与至少两个晶体管管芯的至少一个晶体管管芯相邻的至少一个冷却通道。

公开(公告)号：US09341688B2

公开(公告)日：2016-05-17

申请号：US13675945

申请日：2012-11-13

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: G01V3/00 ,  G01R33/341 ,  G01R3/00 ,  G01R33/36 ,  G01R33/385

CPC classification number: G01R33/341 ,  G01R3/00 ,  G01R33/3607 ,  G01R33/3614 ,  G01R33/3852 ,  Y10T29/49117

Abstract: In a magnetic resonance tomography (MRT) system, a current strength of a coil current is controllable by a plurality of semiconductor power switches as a function of a control signal. The plurality of semiconductor power switches receive the control signal at respective control inputs from a control line. In each of at least two semiconductor power switches of the plurality of semiconductor power switches, a compensation resistance element is connected between the control input and the control line. Resistance values of the compensation resistance elements are different.

Abstract translation: 在磁共振断层摄影（MRT）系统中，作为控制信号的函数，线圈电流的电流强度可由多个半导体功率开关控制。 多个半导体功率开关在控制线的相应控制输入处接收控制信号。 在多个半导体功率开关的至少两个半导体功率开关中的每一个中，补偿电阻元件连接在控制输入和控制线之间。 补偿电阻元件的电阻值不同。

公开(公告)号：US20140009160A1

公开(公告)日：2014-01-09

申请号：US13935560

申请日：2013-07-05

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: G01R33/28

CPC classification number: G01R33/28 ,  G01R33/3614

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130069653A1

公开(公告)日：2013-03-21

申请号：US13622926

申请日：2012-09-19

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: G01R33/28 ,  G01R19/00

CPC classification number: G01R33/3614 ,  G01R33/288

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07411450B2

公开(公告)日：2008-08-12

申请号：US11633737

申请日：2006-12-05

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: H03F3/68

CPC classification number: H03G3/3042 ,  G01R33/3621 ,  H03F1/0211 ,  H03F3/211 ,  H03F2200/447 ,  H03F2203/21106 ,  H03F2203/21142 ,  H03F2203/21181 ,  H03F2203/21184 ,  H03F2203/21187

Abstract: In a circuit and a method for amplification of an electrical input signal, a signal splitter divides the input signal into a first partial signal in a first signal path and a second partial signal in a second signal path. The first signal path has a first amplification stage for amplification of the first partial signal and the second signal path has a second amplification stage for amplification of the second partial signal. Each of the two amplification stages is supplied with current by a current supply device. Both amplified partial signals are recombined into an output signal by a signal combination element downstream from the amplification stages. The first amplification stage and the second amplification stage are coupled with a regulation device that regulates the amplification of the first partial signal dependent on a current difference between a supply current requirement of the second amplification stage and a supply current requirement of the first amplification stage and which regulates the amplification of the second partial signal dependent on a current difference between the supply current requirement of the first amplification stage and the supply current requirement of the second amplification stage.

Abstract translation: 在用于放大电输入信号的电路和方法中，信号分离器将输入信号分成第一信号路径中的第一部分信号和第二信号路径中的第二部分信号。 第一信号路径具有用于放大第一部分信号的第一放大级，并且第二信号路径具有用于放大第二部分信号的第二放大级。 两个放大级中的每一个由电流供给装置供给电流。 两个放大的部分信号通过放大级下游的信号组合元件重新组合成输出信号。 第一放大级和第二放大级与调节装置耦合，该调节装置根据第二放大级的电源电流要求和第一放大级的电源电流要求之间的电流差来调节第一部分信号的放大，以及 其根据第一放大级的电源电流要求与第二放大级的电源电流要求之间的电流差来调节第二部分信号的放大。

公开(公告)号：US20080143438A1

公开(公告)日：2008-06-19

申请号：US11953111

申请日：2007-12-10

Applicant: Adam Albrecht ,  Horst Kroeckel

Inventor： Adam Albrecht ,  Horst Kroeckel

IPC: H03F3/00

CPC classification number: H03F1/0244

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06876197B2

公开(公告)日：2005-04-05

申请号：US10903643

申请日：2004-07-30

Applicant: Adam Albrecht ,  Horst Kröckel ,  Wilfried Schnell ,  Markus Vester

Inventor： Adam Albrecht ,  Horst Kröckel ,  Wilfried Schnell ,  Markus Vester

IPC: G01R33/36 ,  G01V3/00

CPC classification number: G01R33/3614

Abstract: In a transmission arrangement for a magnetic resonance apparatus, a high-frequency input signal, via an input terminal is supplied to a high-frequency power amplifier. The amplifier amplifiers the input signal with from a high-frequency output signal and supplies it to an antenna arrangement that emits it as a magnetic resonance excitation signal. Directional couplers are respectively connected between the input terminal and the amplifier and between the amplifier and the antenna arrangement. The acquired signals are supplied to an amplitude controller that drives an amplitude regulator preceding the high-frequency power amplifier.

Abstract translation: 在用于磁共振装置的传输装置中，经由输入端子的高频输入信号被提供给高频功率放大器。 放大器从高频输出信号放大输入信号，并将其提供给发射为磁共振激励信号的天线装置。 方向耦合器分别连接在输入端子和放大器之间以及放大器和天线装置之间。 所获取的信号被提供给驱动高频功率放大器之前的幅度调节器的振幅控制器。

公开(公告)号：US09404982B2

公开(公告)日：2016-08-02

申请号：US13935560

申请日：2013-07-05

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: G01V3/00 ,  G01R33/28 ,  G01R33/36

CPC classification number: G01R33/28 ,  G01R33/3614

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09379425B2

公开(公告)日：2016-06-28

申请号：US13429210

申请日：2012-03-23

Applicant: Adam Albrecht

Inventor： Adam Albrecht

IPC: G01V3/00 ,  H01P5/12 ,  G01R33/36 ,  H03H7/42 ,  H03H7/48 ,  G01R33/34 ,  H03F3/68

CPC classification number: H01P5/12 ,  G01R33/34 ,  G01R33/3614 ,  H03F3/68 ,  H03H7/42 ,  H03H7/48

Abstract: A signal splitter for creating at least two symmetrical equal-power signals from an input signal for use in an amplifier device includes at least one input terminal pair and at least two output terminal pairs. A primary conductor structure supplied from the at least one input terminal pair is provided for induction of a current flow in at least two secondary conductor structures each connected to an output terminal pair of the at least two output terminal pairs and the at least two secondary conductor structures. A center of a conductor length of each of the at least two secondary conductor structures is connected to ground, and the primary conductor structure and the at least two secondary conductor structures are realized as conductor tracks applied to a printed circuit board.

Abstract translation: 用于从用于放大器设备的输入信号产生至少两个对称的等功率信号的信号分离器包括至少一个输入端子对和至少两个输出端子对。 提供从至少一个输入端子对提供的主导体结构，用于感应至少两个次级导体结构中的电流，每个次级导体结构连接到至少两个输出端子对的输出端子对，并且至少两个次级导体 结构。 所述至少两个次级导体结构中的每一个的导体长度的中心连接到地，并且所述主导体结构和所述至少两个次级导体结构被实现为施加到印刷电路板的导体轨迹。

公开(公告)号：US09151814B2

公开(公告)日：2015-10-06

申请号：US13189302

申请日：2011-07-22

Applicant: Adam Albrecht ,  Horst Kröckel

Inventor： Adam Albrecht ,  Horst Kröckel

IPC: H05K7/20 ,  G01R33/36 ,  G01R33/34

CPC classification number: G01R33/3614 ,  G01R33/3403 ,  H01L2224/48245 ,  H01L2224/73265 ,  H05K7/20927

Abstract: 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.

Abstract translation: 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构造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与冷却剂引导直接接触 在具有背面层的电力电子部件的区域中的冷却剂通道中。