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11. 发明授权

US6020699A Circuitry and method for controllable slew rate 失效
标题翻译：可控转换速率的电路和方法
公开(公告)号：US6020699A
公开(公告)日：2000-02-01
申请号：US926735
申请日：1997-09-10
申请人： Kenneth J. Maggio , Rolf Lagerquist
发明人： Kenneth J. Maggio , Rolf Lagerquist
IPC分类号： G11B19/20 , H02P6/10 , H02P6/14 , H02K23/00
CPC分类号： G11B19/2009 , H02P6/10 , H02P6/14
摘要： A circuit for controlling the slew rate in the stator coils of a polyphase, dc motor is provided. The circuit includes a first steady state control circuitry (12), a low side commutation circuitry (60), a second steady state control circuitry (62), and a high side commutation circuitry (64). The first steady state control circuitry (12) regulates the current through an A-coil (14) and a C-coil (18) after a high side commutation. The A-coil (14) couples to a voltage source through an HSDA (22) at one end and couples to the C-coil (18) through a center tap at the other end. The C-coil (18) couples to an LSDC (24) at its other end during this state. The low side commutation circuitry (60) performs a low side commutation by controlling the current slew rate of the C-coil (18) and a B-coil (16) as the current in the C-coil (18) is reduced to zero and the current in the B-coil (16) is increased from zero to a steady state level. The B-coil (16) couples to the center tap on one end and to an LSDB (52) at its other end. The second steady state control circuitry (62) regulates the current through the A-coil (14) and a B-coil (16) after a low side commutation. The high side commutation circuitry (64) performs a high side commutation by controlling the current slew rate of the C-coil (18) and the A-coil (14) as the current in the A-coil (14) is reduced to zero and the current in the C-coil (18) is increased from zero to a steady state level. The C-coil (18) couples between an HSDC (66) and the center tap during this state.
摘要翻译：提供用于控制多相直流电动机的定子线圈中的转换速率的电路。该电路包括第一稳态控制电路（12），低侧换向电路（60），第二稳态控制电路（62）和高侧换向电路（64）。第一稳态控制电路（12）在高侧换向之后调节通过A线圈（14）和C线圈（18）的电流。 A线圈（14）在一端通过HSDA（22）耦合到电压源，并通过另一端的中心抽头耦合到C线圈（18）。在此状态下，C线圈（18）在另一端耦合到LSDC（24）。低侧换向电路（60）通过控制C线圈（18）和B线圈（16）的电流转换速率来执行低侧换向，因为C线圈（18）中的电流减小到零并且B线圈（16）中的电流从零增加到稳态电平。 B线圈（16）在一端耦合到中心抽头，并在另一端连接到LSDB（52）。第二稳态控制电路（62）在低侧换向之后调节通过A线圈（14）的电流和B线圈（16）。当A线圈（14）中的电流减小到零时，通过控制C线圈（18）和A线圈（14）的电流转换速率，高侧换向电路（64）执行高侧换向并且C线圈（18）中的电流从零增加到稳态水平。在这种状态下，C线圈（18）在HSDC（66）和中心抽头之间耦合。

12. 发明授权

US5867001A Trim circuitry and method for accuracy in current sensing 失效
标题翻译：修剪电路和电流检测精度的方法
公开(公告)号：US5867001A
公开(公告)日：1999-02-02
申请号：US925242
申请日：1997-09-08
申请人： Rolf Lagerquist , William R. Krenik , Kenneth J. Maggio , Patrick G. O'Farrell
发明人： Rolf Lagerquist , William R. Krenik , Kenneth J. Maggio , Patrick G. O'Farrell
IPC分类号： G01R19/00 , H02P6/00 , H02P6/10 , H02P7/00
CPC分类号： H02P6/10 , H02P6/28
摘要： A motor driver circuit (12) for providing drive signals to stator coils of a polyphase dc motor (10) includes a plurality of current paths, each connected between a supply voltage and a reference potential. Each current path includes two driver transistors (14,20, 16,22, 18,24), a node (A, B, C) of each of the stator coils being connectable between the driver transistors in respective current flow paths. A commutator (26) is connected to operate the driver transistors in a sequence in which drive currents are delivered for application in a predetermined sequence to the stator coils. A plurality of sensing transistors (32) are connected to produce a mirror current which mirrors a mirrored current in an associated driver transistor (20) in a respective current flow path. Circuitry (26) is provided which is responsive to the mirror currents of the sensing transistors to control the amplitudes of the currents in the associated driver transistor in a respective current flow path. At least one trim transistor (51-55) is connected in parallel with a respective one of the sensing transistors (50), and a programmable circuit (48) is connected to selectively activate the at least one trim transistor to adjust the amplitudes of the mirrored currents in the current flow path with which the sensing transistor with which the at least one trim transistor is associated.
摘要翻译：用于向多相直流电动机（10）的定子线圈提供驱动信号的电机驱动器电路（12）包括多个电流路径，每个电流路径连接在电源电压和参考电位之间。每个电流路径包括两个驱动器晶体管（14,20,16,22,18,24），每个定子线圈的节点（A，B，C）可在相应的电流流动路径中的驱动器晶体管之间连接。换向器（26）被连接以按驱动电流被输送的顺序来操作驱动器晶体管，以便以预定顺序施加到定子线圈。连接多个感测晶体管（32）以产生镜电流，其反映相应的电流流动路径中相关联的驱动晶体管（20）中的镜像电流。提供电路（26），其响应于感测晶体管的镜像电流来控制相应的电流流动路径中相关联的驱动器晶体管中的电流的幅度。至少一个微调晶体管（51-55）与感测晶体管（50）中的相应一个并联连接，并且可编程电路（48）被连接以选择性地激活所述至少一个修整晶体管以调整电流流动路径中与至少一个修整晶体管相关联的感测晶体管的镜像电流。

13. 发明授权

US07519135B2 Direct radio frequency (RF) sampling with recursive filtering method 有权
标题翻译：直接射频（RF）采样采用递归滤波法
公开(公告)号：US07519135B2
公开(公告)日：2009-04-14
申请号：US10190867
申请日：2002-07-08
申请人： Robert B. Staszewski , Khurram Muhammad , Kenneth J. Maggio , Dirk Leipold
发明人： Robert B. Staszewski , Khurram Muhammad , Kenneth J. Maggio , Dirk Leipold
IPC分类号： H03K5/01
CPC分类号： H03D7/125 , H04B1/1036
摘要： A radio receiver 2000 with a sampling mixer 1100 for creating a discrete-time sample stream by directly sampling an RF current with history and rotating capacitors 1111 and 1112, wherein the accumulated charge on the rotating capacitors is read-out to produce a sample. The mixer provides immunity to noise glitches by predicting the occurrence of the glitch (or detecting a significant difference between observed and predicted samples) and creating corrected samples for the corrupted samples. These corrected samples can be created with special circuitry 1933 (digital) or in the mixer 1100 (analog).
摘要翻译：具有采样混合器1100的无线电接收机2000，用于通过用历史和旋转电容器1111和1112直接采样RF电流来产生离散时间采样流，其中读出旋转电容器上的累积电荷以产生样本。混合器通过预测毛刺的发生（或检测观察到的和预测的样品之间的显着差异）并为损坏的样品产生校正的样品来提供对噪声毛刺的免疫。这些校正样本可以用专用电路1933（数字）或混合器1100（模拟）来创建。

14. 发明授权

US07079826B2 Digitally controlled analog RF filtering in subsampling communication receiver architecture 有权
标题翻译：二次采样通信接收机架构中的数字控制模拟RF滤波
公开(公告)号：US07079826B2
公开(公告)日：2006-07-18
申请号：US10099831
申请日：2002-03-15
申请人： Khurram Muhammad , Dirk L. Leipold , Feng Chen , Kenneth J. Maggio
发明人： Khurram Muhammad , Dirk L. Leipold , Feng Chen , Kenneth J. Maggio
IPC分类号： H04B1/06
CPC分类号： H04B1/0025 , H03H15/00 , H03H19/004 , H04B1/0003 , H04B1/28 , H04L27/24
摘要： A first periodic voltage waveform (20) is downconverted into a second periodic voltage waveform (35, 36). A plurality of temporally distinct samples (SA1, SA2, . . . ) respectively indicative of areas under corresponding half-cycles of the first voltage waveform are obtained. The samples are combined to produce the second voltage waveform, and are also manipulated to implement a filtering operation such that the second voltage waveform represents a downconverted, filtered version of the first voltage waveform.
摘要翻译：第一周期性电压波形（20）被下变频成第二周期性电压波形（35,36）。获得分别表示第一电压波形的相应半周期下的面积的多个时间上不同的样本（SA 1，SA 2 ...）。将样本组合以产生第二电压波形，并且还被操纵以实现滤波操作，使得第二电压波形表示第一电压波形的下变换的滤波版本。

15. 发明授权

US5939905A Loop control detection circuit and method for detecting current feedback 失效
标题翻译：环路控制检测电路及检测电流反馈的方法
公开(公告)号：US5939905A
公开(公告)日：1999-08-17
申请号：US919451
申请日：1997-08-28
申请人： Kenneth J. Maggio
发明人： Kenneth J. Maggio
IPC分类号： G01R19/00 , G01R19/165 , G05F1/46 , H02P6/00 , H02P6/12 , H02P29/00 , H03K5/153 , H03K5/22
CPC分类号： G05F1/46 , H02P6/28
摘要： A loop control detection circuit (100) is provided for detecting feedback values in a current feedback control loop to determine if the control loop is in or out of control.
摘要翻译：提供了一种环路控制检测电路（100），用于检测电流反馈控制回路中的反馈值，以确定控制回路是否处于控制状态。

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