公开(公告)号：US10254359B2

公开(公告)日：2019-04-09

申请号：US14574275

申请日：2014-12-17

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01R33/36 ,  H03F3/21 ,  H03F3/195 ,  H01L23/36 ,  H01L23/473 ,  H01L25/07 ,  H01L23/40

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.

公开(公告)号：US20160178715A1

公开(公告)日：2016-06-23

申请号：US14971093

申请日：2015-12-16

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01R33/36 ,  H03F3/19 ,  H03F1/02

CPC分类号： G01R33/3614

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.

摘要翻译： 提供了一种用于成像磁共振断层摄影（MRT）系统的放大器的功率电子单元。 功率电子单元包括至少一个布置有多个晶体管的印刷电路板。 多个晶体管的端口（例如漏极和源极）通过导电连接连接在一起，并且多个晶体管全部布置在至少一个印刷电路板的一侧上。 平行于连接的输出线或电缆至少部分地在印刷电路板的相对侧上延伸，并且可以连接或连接或连接到或不与另外的互连元件（例如，平衡 - 不平衡转换器）连接到MRT的发射线圈 。

公开(公告)号：US20130119989A1

公开(公告)日：2013-05-16

申请号：US13675945

申请日：2012-11-13

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01R33/341 ,  G01R3/00

CPC分类号： G01R33/341 ,  G01R3/00 ,  G01R33/3607 ,  G01R33/3614 ,  G01R33/3852 ,  Y10T29/49117

摘要： 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.

摘要翻译： 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：US20130076360A1

公开(公告)日：2013-03-28

申请号：US13631455

申请日：2012-09-28

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01R33/34 ,  H05K13/04 ,  H03G99/00

CPC分类号： H01L23/552 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/3614 ,  G01R33/422 ,  H01L23/66 ,  H01L25/072 ,  H01L25/115 ,  H01L2223/6644 ,  H01L2223/6677 ,  H01L2924/0002 ,  H01L2924/19107 ,  Y10T29/49117 ,  H01L2924/00

摘要： A power module for a high frequency amplifier unit is provided. The power module includes a base support plate, on which at least one power electronic module is contacted via a number of contact pins. A shield plate is arranged on a side of the power electronic module facing away from the base support plate. The power electronic module is in contact with a cooling element at a side facing the shield plate.

摘要翻译： 提供了一种用于高频放大器单元的电源模块。 功率模块包括基座支撑板，至少一个电力电子模块经由许多接触销与其接触。 屏蔽板布置在电源电子模块的背离基座支撑板的一侧。 电力电子模块在面向屏蔽板的一侧与冷却元件接触。

公开(公告)号：US20150042342A1

公开(公告)日：2015-02-12

申请号：US14456413

申请日：2014-08-11

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01R33/34 ,  H05K5/03 ,  H05K1/02

CPC分类号： G01R33/3403 ,  A61B5/055 ,  G01R33/36 ,  H05K1/0272 ,  H05K5/03 ,  H05K7/20236 ,  H05K9/0032

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.

摘要翻译： 用于冷却电气部件的装置包括具有布置在电路板上的电气部件的电路板。 该装置包括设置在电路板上的盖。 盖和电路板形成封闭的空腔，其中设置电子部件。 空腔具有用于引入流体的第一开口和用于排出流体的第二开口。

公开(公告)号：US20130076359A1

公开(公告)日：2013-03-28

申请号：US13429200

申请日：2012-03-23

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01R1/30 ,  H03F99/00

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

摘要： 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.

摘要翻译： 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：US20080079488A1

公开(公告)日：2008-04-03

申请号：US11862303

申请日：2007-09-27

申请人： Adam Albrecht ,  Horst Kroeckel

发明人： Adam Albrecht ,  Horst Kroeckel

IPC分类号： H03G3/00 ,  H04B1/04

CPC分类号： H03F1/0244 ,  G01R33/3614 ,  H03F1/0238 ,  H03F3/19 ,  H03F2200/301 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511

摘要： A radio-frequency power amplifier is supplied by a voltage supply device. The voltage supply device has a voltage divider chain that is connected at the input side with a base potential and a ground voltage. The voltage divider chain has a number of Zener diodes connected in series, with which at least one capacitor is connected in parallel. Intermediate voltages that lie between the ground voltage and the base potential can be tapped at respective node points between each two immediately adjacent Zener diodes. A first supply input of the radio-frequency power amplifier is connected with the ground voltage. The voltage divider chain is connected with the radio-frequency power amplifier via a switching device. The switching device has a number of switching elements connected in parallel with one another, these switching elements being connected at the output side with a second supply input of the radio-frequency power amplifier. The base potential or one of the intermediate voltages is present at the input side of each switching element. The switching elements can be individually controlled by a control device, such that the second supply input can be selectively connected with the base potential and each of the intermediate voltages via the switching device.

摘要翻译： 射频功率放大器由电压供给装置提供。 电压供给装置具有在输入侧连接有基极电位和接地电压的分压器链。 分压器链具有串联连接的多个齐纳二极管，至少一个电容器并联连接。 位于接地电压和基极电位之间的中间电压可以在每个两个紧邻的齐纳二极管之间的相应节点处被抽头。 射频功率放大器的第一个电源输入端与接地电压相连。 分压器链通过开关装置与射频功率放大器相连。 开关装置具有彼此并联连接的多个开关元件，这些开关元件在输出侧连接有射频功率放大器的第二电源输入端。 基极电位或中间电压之一存在于每个开关元件的输入侧。 开关元件可以由控制装置单独控制，使得第二电源输入可以经由开关装置选择性地连接到基极电位和每个中间电压。

公开(公告)号：US07119543B2

公开(公告)日：2006-10-10

申请号：US10909794

申请日：2004-07-30

申请人： Adam Albrecht ,  Horst Kröckel ,  Wilfried Schnell ,  Markus Vester

发明人： Adam Albrecht ,  Horst Kröckel ,  Wilfried Schnell ,  Markus Vester

IPC分类号： G01V3/00

CPC分类号： G01R33/3607 ,  G01R33/3614

摘要： A generator device for a magnetic resonance excitation signal has a signal divider that divides an input signal supplied to it via an input element into at least two sub-signals and supplies them to amplification stages. The amplification stages amplify the respective sub-signals to produce amplified signals and supply the amplified signals to a signal combiner that combines them to form an aggregate signal, which is made externally available via an output element. Sensor devices that precede the signal divider and the signal combiner, acquire a reference signal that corresponds to the input signal and actual signals that correspond to the amplified signals and supply them to a control device. The control device acts on at least one of the amplification stages to cause the amplified signals to exhibit a predetermined amplitude ratio and a predetermined phase relation relative to one another.

摘要翻译： 用于磁共振激励信号的发生器装置具有信号分配器，其将经由输入元件提供给其的输入信号分成至少两个子信号并将其提供给放大级。 放大级放大相应的子信号以产生放大的信号，并将放大的信号提供给组合它们的信号组合器，以形成聚合信号，该信号通过输出元件在外部可用。 在信号分频器和信号组合器之前的传感器装置，获取对应于输入信号的参考信号和对应于放大信号的实际信号并将其提供给控制装置。 控制装置作用于至少一个放大级，以使放大的信号相对于彼此呈现预定的幅度比和预定的相位关系。

公开(公告)号：US20050046476A1

公开(公告)日：2005-03-03

申请号：US10909794

申请日：2004-07-30

申请人： Adam Albrecht ,  Horst Krockel ,  Wilfried Schnell ,  Markus Vester

发明人： Adam Albrecht ,  Horst Krockel ,  Wilfried Schnell ,  Markus Vester

IPC分类号： G01R33/20 ,  A61B5/055 ,  G01R33/36 ,  H03F3/68

CPC分类号： G01R33/3607 ,  G01R33/3614

摘要： A generation device for a magnetic resonance excitation signal has a signal divider that divides an input signal supplied to it via an input element into at least two sub-signals and supplies them to amplification stages. The amplification stages amplify the respective sub-signals to produce signals and supply the amplified signals to a signal combiner that combines them to form an aggregate signal, which is made externally available via an output element. Sensor devices that precede the signal divider and the signal combiner, acquire a reference signal that corresponds to the input signal and actual signals that correspond to the amplified signals and supply them to a control device. The control device acts on at least one of the amplification stages to cause the amplified signals to exhibit a predetermined amplitude ratio and a predetermined phase relation relative to one another.

摘要翻译： 用于磁共振激励信号的发生装置具有信号分配器，其将经由输入元件提供给其的输入信号分成至少两个子信号，并将其提供给放大级。 放大级放大相应的子信号以产生信号，并将放大的信号提供给组合它们的信号组合器，以形成聚合信号，该信号通过输出元件在外部可用。 在信号分频器和信号组合器之前的传感器装置，获取对应于输入信号的参考信号和对应于放大信号的实际信号并将其提供给控制装置。 控制装置作用于至少一个放大级，以使放大的信号相对于彼此呈现预定的幅度比和预定的相位关系。

公开(公告)号：US20050035762A1

公开(公告)日：2005-02-17

申请号：US10903643

申请日：2004-07-30

申请人： Adam Albrecht ,  Horst Krockel ,  Wilfried Schnell ,  Markus Vester

发明人： Adam Albrecht ,  Horst Krockel ,  Wilfried Schnell ,  Markus Vester

IPC分类号： G01R33/36 ,  G01V3/00

CPC分类号： G01R33/3614

摘要： 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 amplifies 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.

摘要翻译： 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。 放大器利用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。