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1. 发明授权

US08861681B2 Method and system for active resonant voltage switching 有权
标题翻译：有源谐振电压开关的方法和系统
公开(公告)号：US08861681B2
公开(公告)日：2014-10-14
申请号：US12972156
申请日：2010-12-17
申请人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
发明人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
IPC分类号： H05G1/32 , H02M7/10 , H02M3/337 , H05G1/10 , H02M1/00
CPC分类号： H02M7/10 , H02M3/337 , H02M2001/0058 , H05G1/10 , Y02B70/1433 , Y02B70/1491
摘要： Methods and systems for active resonant voltage switching are provided. One active resonant switching system includes a voltage switching system having one or more active resonant modules to provide a switching voltage output. Each of the resonant modules includes a plurality of switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The resonant modules also include a capacitor connected to the switching devices and configured to receive a discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, wherein the capacitor is further configured to restore system energy when switching from the second to first voltage level. The resonant modules further include a resonant inductor configured to transfer energy to and from the capacitor.
摘要翻译：提供了主动谐振电压切换的方法和系统。一个有源谐振开关系统包括具有一个或多个有源谐振模块以提供开关电压输出的电压切换系统。每个谐振模块包括多个开关装置，其被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出。谐振模块还包括连接到开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收放电能量，其中电容器还被配置为恢复系统能量当从第二电压电平切换到第一电压电平时。谐振模块还包括被配置为将能量传递到电容器和从电容器传输能量的谐振电感器。

2. 发明授权

US07742573B2 Fast switching circuit for x-ray imaging applications 失效
标题翻译：用于x射线成像应用的快速切换电路
公开(公告)号：US07742573B2
公开(公告)日：2010-06-22
申请号：US12253438
申请日：2008-10-17
申请人： Antonio Caiafa , Colin Richard Wilson
发明人： Antonio Caiafa , Colin Richard Wilson
IPC分类号： H05G1/32 , H05G1/08 , H05G1/58
CPC分类号： H05G1/10 , H05G1/58
摘要： A system is provided, which includes a rotatable gantry for receiving an object to be scanned. The system includes an x-ray source for projecting x-rays of two different energy levels towards the object and also a power supply, which energizes the x-ray source to two different voltage levels at a predetermined rate for generating x-rays at two different energy levels. The power supply in the system includes a fixed voltage source to input a voltage to a switching module with number of identical switching stages. Each stage in the switching module consists of a first switch, which charges a capacitor in a conducting state and output a first voltage, a second switch, which connects the fixed voltage source and the capacitor in series to output a second voltage in a conducting state and a diode which blocks a reverse current from the capacitor to the power supply.
摘要翻译：提供了一种系统，其包括用于接收待扫描物体的可旋转机架。该系统包括用于将两个不同能级的x射线投射到物体的X射线源，还有一个电源，其以预定的速率将X射线源激励到两个不同的电压电平，以在两个处产生x射线不同的能量水平。系统中的电源包括一个固定电压源，用于向具有相同开关级数的开关模块输入电压。开关模块中的每个级包括一个第一开关，其对导通状态的电容器进行充电并输出第一电压，第二开关，其将固定电压源和电容器串联连接以输出导通状态的第二电压以及阻挡从电容器到电源的反向电流的二极管。

3. 发明授权

US08687768B2 Method and system for passive resonant voltage switching 有权
标题翻译：无源谐振电压开关的方法和系统
公开(公告)号：US08687768B2
公开(公告)日：2014-04-01
申请号：US12972231
申请日：2010-12-17
申请人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
发明人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
IPC分类号： H05G1/32 , H03K3/00
CPC分类号： H03K3/53 , H05G1/10 , Y10T307/872
摘要： Methods and systems for passive resonant voltage switching are provided. One passive resonant switching system includes a voltage switching system having one or more passive resonant modules to provide a switching voltage output. Each of the passive resonant modules include switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The passive resonant modules also include a capacitor connected to the one or more switching devices and configured to receive a system discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, and to be recharged when switching from the second to first voltage level. The passive resonant modules further include a resonant inductor and an additional switching device.
摘要翻译：提供了无源谐振电压切换的方法和系统。一个无源谐振开关系统包括具有一个或多个无源谐振模块以提供开关电压输出的电压开关系统。无源谐振模块中的每一个包括被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出的开关装置。无源谐振模块还包括连接到一个或多个开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收系统放电能量，并且当从第二电压电平切换到第一电压电平。无源谐振模块还包括谐振电感器和附加的开关装置。

4. 发明申请

US20120155614A1 METHOD AND SYSTEM FOR PASSIVE RESONANT VOLTAGE SWITCHING 有权
标题翻译：无源谐波电压开关方法与系统
公开(公告)号：US20120155614A1
公开(公告)日：2012-06-21
申请号：US12972231
申请日：2010-12-17
申请人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
发明人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
IPC分类号： H05G1/32 , H03K3/00
CPC分类号： H03K3/53 , H05G1/10 , Y10T307/872
摘要： Methods and systems for passive resonant voltage switching are provided. One passive resonant switching system includes a voltage switching system having one or more passive resonant modules to provide a switching voltage output. Each of the passive resonant modules include switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The passive resonant modules also include a capacitor connected to the one or more switching devices and configured to receive a system discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, and to be recharged when switching from the second to first voltage level. The passive resonant modules further include a resonant inductor and an additional switching device.
摘要翻译：提供了无源谐振电压切换的方法和系统。一个无源谐振开关系统包括具有一个或多个无源谐振模块以提供开关电压输出的电压开关系统。无源谐振模块中的每一个包括被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出的开关装置。无源谐振模块还包括连接到一个或多个开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收系统放电能量，并且当从第二电压到第一电压电平。无源谐振模块还包括谐振电感器和附加的开关装置。

5. 发明申请

US20120155613A1 METHOD AND SYSTEM FOR ACTIVE RESONANT VOLTAGE SWITCHING 有权
标题翻译：主动共振电压切换的方法和系统
公开(公告)号：US20120155613A1
公开(公告)日：2012-06-21
申请号：US12972156
申请日：2010-12-17
申请人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
发明人： Antonio Caiafa , Peter Michael Edic , Colin Richard Wilson
IPC分类号： H05G1/32 , H02M7/00
CPC分类号： H02M7/10 , H02M3/337 , H02M2001/0058 , H05G1/10 , Y02B70/1433 , Y02B70/1491
摘要： Methods and systems for active resonant voltage switching are provided. One active resonant switching system includes a voltage switching system having one or more active resonant modules to provide a switching voltage output. Each of the resonant modules includes a plurality of switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The resonant modules also include a capacitor connected to the switching devices and configured to receive a discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, wherein the capacitor is further configured to restore system energy when switching from the second to first voltage level. The resonant modules further include a resonant inductor configured to transfer energy to and from the capacitor.
摘要翻译：提供了主动谐振电压切换的方法和系统。一个有源谐振开关系统包括具有一个或多个有源谐振模块以提供开关电压输出的电压切换系统。每个谐振模块包括多个开关装置，其被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出。谐振模块还包括连接到开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收放电能量，其中电容器还被配置为恢复系统能量当从第二电压电平切换到第一电压电平时。谐振模块还包括被配置为将能量传递到电容器和从电容器传输能量的谐振电感器。

6. 发明申请

US20100098217A1 FAST SWITCHING CIRCUIT FOR X-RAY IMAGING APPLICATIONS 失效
标题翻译：用于X射线成像应用的快速切换电路
公开(公告)号：US20100098217A1
公开(公告)日：2010-04-22
申请号：US12253438
申请日：2008-10-17
申请人： Antonio Caiafa , Colin Richard Wilson
发明人： Antonio Caiafa , Colin Richard Wilson
IPC分类号： H05G1/32
CPC分类号： H05G1/10 , H05G1/58
摘要： A system is provided, which includes a rotatable gantry for receiving an object to be scanned. The system includes an x-ray source for projecting x-rays of two different energy levels towards the object and also a power supply, which energizes the x-ray source to two different voltage levels at a predetermined rate for generating x-rays at two different energy levels. The power supply in the system includes a fixed voltage source to input a voltage to a switching module with number of identical switching stages. Each stage in the switching module consists of a first switch, which charges a capacitor in a conducting state and output a first voltage, a second switch, which connects the fixed voltage source and the capacitor in series to output a second voltage in a conducting state and a diode which blocks a reverse current from the capacitor to the power supply.
摘要翻译：提供了一种系统，其包括用于接收待扫描物体的可旋转机架。该系统包括用于将两个不同能级的x射线投射到物体的X射线源，还有一个电源，其以预定的速率将X射线源激励到两个不同的电压电平，以在两个处产生x射线不同的能量水平。系统中的电源包括一个固定电压源，用于向具有相同开关级数的开关模块输入电压。开关模块中的每个级包括一个第一开关，其对导通状态的电容器进行充电并输出第一电压，第二开关，其将固定电压源和电容器串联连接以输出导通状态的第二电压以及阻挡从电容器到电源的反向电流的二极管。

7. 发明申请

US20120027165A1 APPARATUS AND METHOD FOR MAGNETIC CONTROL OF AN ELECTRON BEAM 有权
标题翻译：电子束磁控制装置及方法
公开(公告)号：US20120027165A1
公开(公告)日：2012-02-02
申请号：US12845579
申请日：2010-07-28
申请人： Antonio Caiafa , Maja Harfman Todorovic , Joseph Leclaire Reynolds
发明人： Antonio Caiafa , Maja Harfman Todorovic , Joseph Leclaire Reynolds
IPC分类号： A61B6/03 , H01J35/14
CPC分类号： H05G1/52 , H01J35/14
摘要： An apparatus and method for magnetic control of an electron beam includes a control circuit having a first low voltage source and a second low voltage source. The control circuit also includes a first switching device coupled in series with the first low voltage source and configured to create a first current path with the first low voltage source when in a closed position and a second switching device coupled in series with the second low voltage source and configured to create a second current path with the second low voltage source when in a closed position. The control circuit further includes a capacitor coupled in parallel with an electron beam manipulation coil and positioned along the first and second current paths and a current source circuit electrically coupled to the electron beam manipulation coil and constructed to generate an offset current in the first and second current paths.
摘要翻译：用于电子束的磁控制的装置和方法包括具有第一低电压源和第二低电压源的控制电路。控制电路还包括与第一低电压源串联耦合的第一开关器件，并配置成在处于闭合位置时产生与第一低电压源的第一电流通路，以及与第二低电压串联耦合的第二开关器件源和配置为当处于关闭位置时与第二低电压源产生第二电流路径。控制电路还包括与电子束操作线圈并联并沿着第一和第二电流路径定位的电容器和电耦合到电子束操纵线圈的电流源电路，并被构造成在第一和第二电流线路中产生偏移电流当前路径。

8. 发明申请

US20090185661A1 VIRTUAL MATRIX CONTROL SCHEME FOR MULTIPLE SPOT X-RAY SOURCE 有权
标题翻译：用于多点X射线源的虚拟矩阵控制方案
公开(公告)号：US20090185661A1
公开(公告)日：2009-07-23
申请号：US12113726
申请日：2008-05-01
申请人： Yun Zou , Mark E. Vermilyea , Louis Paul Inzinna , Antonio Caiafa
发明人： Yun Zou , Mark E. Vermilyea , Louis Paul Inzinna , Antonio Caiafa
IPC分类号： H01J35/06 , H05B37/02
CPC分类号： H01J3/021 , H01J1/30 , H01J1/3048 , H01J3/027 , H01J35/065 , H01J35/14 , H01J2201/319 , H01J2203/0204 , H01J2235/062 , H01J2235/068
摘要： A system and method for addressing individual electron emitters in an emitter array is disclosed. The system includes an emitter array comprising a plurality of emitter elements arranged in a non-rectangular layout and configured to generate at least one electron beam and a plurality of extraction grids positioned adjacent to the emitter array, each extraction grid being associated with at least one emitter element to extract the at least one electron beam therefrom. The field emitter array system also includes a plurality of voltage control channels connected to the plurality of emitter elements and the plurality of extraction grids such that each of the emitter elements and each of the extraction grids is individually addressable. In the field emitter array system, the number of voltage control channels is equal to the sum of a pair of integers closest in value whose product equals the number of emitter elements.
摘要翻译：公开了一种用于寻址发射极阵列中的各个电子发射体的系统和方法。该系统包括发射器阵列，其包括以非矩形布局布置的多个发射体元件，并且被配置为产生至少一个电子束和邻近发射器阵列定位的多个提取栅格，每个提取栅格与至少一个发射极元件从其中提取至少一个电子束。场发射器阵列系统还包括连接到多个发射体元件和多个提取栅格的多个电压控制通道，使得每个发射极元件和每个提取栅格可单独寻址。在场发射极阵列系统中，电压控制通道的数量等于产品等于发射极元件数量的最接近值的一对整数之和。

9. 发明申请

US20090041198A1 HIGHLY COLLIMATED AND TEMPORALLY VARIABLE X-RAY BEAMS 审中-公开
标题翻译：高度可变的和可变的X射线
公开(公告)号：US20090041198A1
公开(公告)日：2009-02-12
申请号：US12175185
申请日：2008-07-17
申请人： John Scott Price , Vanita Mani , Antonio Caiafa , Kristopher John Frutschy , Susanne Madeline Lee , Vasile Bogden Neculaes , Fred Sharifi , Yun Zou
发明人： John Scott Price , Vanita Mani , Antonio Caiafa , Kristopher John Frutschy , Susanne Madeline Lee , Vasile Bogden Neculaes , Fred Sharifi , Yun Zou
IPC分类号： G21K1/02
CPC分类号： G21K1/06 , G21K1/02 , H01J35/06 , H01J35/24
摘要： Systems and methods for highly collimated and temporally variable X-ray beams. Disclosed herein is a system for producing a collimated X-ray beam, the system including one or more distributed electron sources configured to produce electron beams, one or more X-ray production targets configured to receive the electron beams and to generate X-ray beams at X-ray focal spots, X-ray optics configured to collect the X-ray beams from the X-ray focal spots, wherein the X-rays optics are configured to focus the X-ray beams to a single virtual focal spot, and an X-ray collimator configured to collimate the X-ray beams from the virtual focal spot to generate the collimated X-ray beam.
摘要翻译：用于高度准直和时间可变的X射线束的系统和方法。本文公开了一种用于产生准直X射线束的系统，该系统包括被配置为产生电子束的一个或多个分布式电子源，被配置为接收电子束的一个或多个X射线产生靶，并产生X射线束在X射线焦点处，被配置为从X射线焦点收集X射线束的X射线光学元件，其中X射线光学元件被配置为将X射线束聚焦到单个虚拟焦点，以及 X射线准直仪被配置为使来自虚拟焦点的X射线束准直以产生准直的X射线束。

10. 发明申请

US20130051532A1 ELECTRON BEAM MANIPULATION SYSTEM AND METHOD IN X-RAY SOURCES 有权
标题翻译：电子束操纵系统和X射线源的方法
公开(公告)号：US20130051532A1
公开(公告)日：2013-02-28
申请号：US13223036
申请日：2011-08-31
申请人： Antonio Caiafa
发明人： Antonio Caiafa
IPC分类号： H05G1/34
CPC分类号： H01J35/18 , H01J35/14 , H05G1/52
摘要： The embodiments disclosed herein relate to the controlled generation of X-rays and, more specifically, to the control of electron beams that are used to produce X-rays using one or more electron beam manipulation coils. For example, methods and devices for driving an electron beam manipulation coil, as well as systems using these devices, are provided. The systems are generally configured to maintain a first current though an electron beam manipulation coil using a first voltage source and to switch the first current to a second current using a second voltage source.
摘要翻译：本文公开的实施例涉及X射线的受控产生，更具体地涉及用于使用一个或多个电子束操纵线圈产生X射线的电子束的控制。例如，提供了用于驱动电子束操纵线圈的方法和装置，以及使用这些装置的系统。这些系统通常被配置为使用第一电压源通过电子束操纵线圈保持第一电流，并且使用第二电压源将第一电流切换到第二电流。

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