公开(公告)号：US20130328554A1

公开(公告)日：2013-12-12

申请号：US13494501

申请日：2012-06-12

申请人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

发明人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

IPC分类号： G01B7/30 ,  G01R33/00

CPC分类号： G01D5/2013

摘要： A variable reluctance sensor system for processing a variable reluctance sensor signal including an arming comparator and an arming circuit. The arming comparator compares the variable reluctance sensor signal with an arming threshold which decreases proportional to 1/t from a predetermined maximum level and asserts an armed signal when the variable reluctance sensor signal reaches the arming threshold. The arming threshold may be decreased based on a scaling factor multiplied by 1/t to ensure detection of each pulse of the variable reluctance sensor signal. The arming threshold may decrease to a predetermined minimum level sufficiently low to intersect the variable reluctance sensor signal and sufficiently high relative to an expected noise level. The arming threshold is reset in response to a timing event, such as zero crossing of the variable reluctance sensor signal.

摘要翻译： 一种用于处理包括布防比较器和布防电路的可变磁阻传感器信号的可变磁阻传感器系统。 布防比较器将可变磁阻传感器信号与从预定最大电平成比例降低到1 / t的布防阈值进行比较，并且当可变磁阻传感器信号达到布防阈值时断言布防信号。 可以基于乘以1 / t的比例因子来减小布防阈值，以确保检测可变磁阻传感器信号的每个脉冲。 布防阈值可以降低到足够低的预定最小电平以与可变磁阻传感器信号相交并且相对于期望的噪声电平足够高。 响应于定时事件（例如可变磁阻传感器信号的过零点）来复位布防阈值。

公开(公告)号：US20140035561A1

公开(公告)日：2014-02-06

申请号：US13564505

申请日：2012-08-01

申请人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

发明人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

IPC分类号： G01P3/48

CPC分类号： G01D5/2013 ,  G01D5/24476 ,  G01P3/488 ,  G01P3/489

摘要： An interface for processing a variable reluctance sensor signal provided by a variable reluctance sensor including an integrator, an arming comparator and a detect circuit. The integrator includes an input for receiving the variable reluctance sensor signal and an output providing an integrated signal indicative of total flux change of the variable reluctance sensor. The arming comparator compares the integrated signal with a predetermined arming threshold and provides an armed signal indicative thereof. The detect circuit provides a reset signal after the armed signal is provided to reset the integrator. A corresponding method of processing the variable reluctance sensor signal is also described.

摘要翻译： 一种用于处理由包括积分器，布防比较器和检测电路的可变磁阻传感器提供的可变磁阻传感器信号的接口。 积分器包括用于接收可变磁阻传感器信号的输入端和提供指示可变磁阻传感器的总磁通量变化的积分信号的输出。 布防比较器将积分信号与预定的布防阈值进行比较，并提供指示其的布防信号。 在提供布防信号以复位积分器之后，检测电路提供复位信号。 还描述了处理可变磁阻传感器信号的相应方法。

公开(公告)号：US09103847B2

公开(公告)日：2015-08-11

申请号：US13564505

申请日：2012-08-01

申请人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

发明人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

IPC分类号： G01P3/48 ,  G01P3/488 ,  G01P3/489 ,  G01D5/244 ,  G01D5/20

CPC分类号： G01D5/2013 ,  G01D5/24476 ,  G01P3/488 ,  G01P3/489

摘要： An interface for processing a variable reluctance sensor signal provided by a variable reluctance sensor including an integrator, an arming comparator and a detect circuit. The integrator includes an input for receiving the variable reluctance sensor signal and an output providing an integrated signal indicative of total flux change of the variable reluctance sensor. The arming comparator compares the integrated signal with a predetermined arming threshold and provides an armed signal indicative thereof. The detect circuit provides a reset signal after the armed signal is provided to reset the integrator. A corresponding method of processing the variable reluctance sensor signal is also described.

摘要翻译： 一种用于处理由包括积分器，布防比较器和检测电路的可变磁阻传感器提供的可变磁阻传感器信号的接口。 积分器包括用于接收可变磁阻传感器信号的输入端和提供指示可变磁阻传感器的总磁通量变化的积分信号的输出。 布防比较器将积分信号与预定的布防阈值进行比较，并提供指示其的布防信号。 在提供布防信号以复位积分器之后，检测电路提供复位信号。 还描述了处理可变磁阻传感器信号的相应方法。

公开(公告)号：US08970209B2

公开(公告)日：2015-03-03

申请号：US13494501

申请日：2012-06-12

申请人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

发明人： John M. Pigott ,  Fred T. Brauchler ,  William E. Edwards ,  Mike R. Garrard ,  Randall C. Gray ,  John M. Hall

IPC分类号： G01B7/30

CPC分类号： G01D5/2013

摘要： A variable reluctance sensor system for processing a variable reluctance sensor signal including an arming comparator and an arming circuit. The arming comparator compares the variable reluctance sensor signal with an arming threshold which decreases proportional to 1/t from a predetermined maximum level and asserts an armed signal when the variable reluctance sensor signal reaches the arming threshold. The arming threshold may be decreased based on a scaling factor multiplied by 1/t to ensure detection of each pulse of the variable reluctance sensor signal. The arming threshold may decrease to a predetermined minimum level sufficiently low to intersect the variable reluctance sensor signal and sufficiently high relative to an expected noise level. The arming threshold is reset in response to a timing event, such as zero crossing of the variable reluctance sensor signal.

摘要翻译： 一种用于处理包括布防比较器和布防电路的可变磁阻传感器信号的可变磁阻传感器系统。 布防比较器将可变磁阻传感器信号与从预定最大电平成比例降低到1 / t的布防阈值进行比较，并且当可变磁阻传感器信号达到布防阈值时断言布防信号。 可以基于乘以1 / t的比例因子来减小布防阈值，以确保检测可变磁阻传感器信号的每个脉冲。 布防阈值可以降低到足够低的预定最小电平以与可变磁阻传感器信号相交并且相对于期望的噪声电平足够高。 响应于定时事件（例如可变磁阻传感器信号的过零点）来复位布防阈值。

公开(公告)号：US20150004902A1

公开(公告)日：2015-01-01

申请号：US13930250

申请日：2013-06-28

申请人： John M. Pigott ,  Fred T. Brauchler ,  Darrel R. Frear ,  Vivek Gupta ,  Randall C. Gray ,  Norman L. Owens ,  Carl E. D'Acosta

发明人： John M. Pigott ,  Fred T. Brauchler ,  Darrel R. Frear ,  Vivek Gupta ,  Randall C. Gray ,  Norman L. Owens ,  Carl E. D'Acosta

IPC分类号： H04B5/00 ,  H01L49/02

CPC分类号： H04B5/0031 ,  H01F19/08 ,  H01L23/3107 ,  H01L23/48 ,  H01L23/49575 ,  H01L23/5227 ,  H01L24/05 ,  H01L24/13 ,  H01L24/16 ,  H01L24/27 ,  H01L24/29 ,  H01L24/32 ,  H01L24/48 ,  H01L24/73 ,  H01L24/92 ,  H01L28/10 ,  H01L2224/0401 ,  H01L2224/04042 ,  H01L2224/05553 ,  H01L2224/0557 ,  H01L2224/131 ,  H01L2224/16245 ,  H01L2224/27334 ,  H01L2224/29034 ,  H01L2224/2919 ,  H01L2224/32013 ,  H01L2224/32014 ,  H01L2224/32145 ,  H01L2224/32245 ,  H01L2224/33181 ,  H01L2224/48247 ,  H01L2224/4826 ,  H01L2224/48464 ,  H01L2224/73203 ,  H01L2224/73215 ,  H01L2224/73265 ,  H01L2224/92147 ,  H01L2224/92247 ,  H01L2924/00014 ,  H01L2924/10252 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/1033 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/19042 ,  H01L2924/19104 ,  H04B5/0093 ,  H01L2924/00012 ,  H01L2924/014 ,  H01L2924/00 ,  H01L2224/05552 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

摘要： Embodiments of inductive communication devices include first and second galvanically isolated IC die. The first IC die has a first coil proximate to a first surface of the first IC die, and the second IC die has a second coil proximate to a first surface of the second IC die. The first and second IC die are arranged so that the first surfaces of the first and second IC die face each other, and the first coil and the second coil are aligned across a gap between the first and second IC die. One or more dielectric components are positioned within the gap directly between the first and second coils. During operation, a first signal is provided to the first coil, and the first coil converts the signal into a time-varying magnetic field. The magnetic field couples with the second coil, which produces a corresponding second signal.

摘要翻译： 感应通信设备的实施例包括第一和第二电隔离IC芯片。 第一IC管芯具有靠近第一IC管芯的第一表面的第一线圈，并且第二IC管芯具有靠近第二IC管芯的第一表面的第二线圈。 第一IC芯片和第二IC芯片被布置成使得第一和第二IC芯片的第一表面彼此面对，并且第一线圈和第二线圈跨越第一和第二IC芯片之间的间隙排列。 一个或多个电介质部件直接位于第一和第二线圈之间的间隙内。 在操作期间，向第一线圈提供第一信号，并且第一线圈将该信号转换成时变磁场。 磁场与第二线圈耦合，产生相应的第二信号。

公开(公告)号：US09466413B2

公开(公告)日：2016-10-11

申请号：US13930236

申请日：2013-06-28

申请人： Fred T. Brauchler ,  John M. Pigott ,  Darrel R. Frear ,  Vivek Gupta ,  Randall C. Gray ,  Norman L. Owens ,  Carl E. D'Acosta

发明人： Fred T. Brauchler ,  John M. Pigott ,  Darrel R. Frear ,  Vivek Gupta ,  Randall C. Gray ,  Norman L. Owens ,  Carl E. D'Acosta

IPC分类号： H01L25/00 ,  H01L25/065 ,  H02J5/00 ,  H01F19/08 ,  H01L23/522 ,  H01L23/64 ,  H01L23/495

CPC分类号： H01F19/08 ,  H01F2019/085 ,  H01L23/49575 ,  H01L23/5227 ,  H01L23/645 ,  H01L2224/0401 ,  H01L2224/04042 ,  H01L2224/131 ,  H01L2224/16245 ,  H01L2224/32145 ,  H01L2224/48247 ,  H01L2224/48464 ,  H01L2224/73215 ,  H01L2924/13055 ,  H01L2924/14 ,  H01L2924/00 ,  H01L2924/014

摘要： Embodiments of inductive communication devices include first and second galvanically isolated IC die and a dielectric structure. Each IC die has a coil proximate to a first surface of the IC die. The IC die are arranged so that the first surfaces of the IC die face each other, and the first coil and the second coil are aligned across a gap between the first and second IC die. The dielectric structure is positioned within the gap directly between the first and second coils, and a plurality of conductive structures are positioned in or on the dielectric structure and electrically coupled with the second IC die. The conductive structures include portions configured to function as bond pads, and the bond pads may be coupled to package leads using wirebonds. During operation, signals are conveyed between the IC die through inductive coupling between the coils.

摘要翻译： 感应通信设备的实施例包括第一和第二电隔离IC芯片和电介质结构。 每个IC管芯具有靠近IC管芯的第一表面的线圈。 IC芯片被布置成使得IC管芯的第一表面彼此面对，并且第一线圈和第二线圈跨越第一和第二IC管芯之间的间隙排列。 电介质结构直接位于第一和第二线圈之间的间隙内，并且多个导电结构位于电介质结构中或电介质结构上并与第二IC芯片电耦合。 导电结构包括被配置为用作接合焊盘的部分，并且接合焊盘可以使用引线键耦合到封装引线。 在操作期间，通过线圈之间的感应耦合在IC芯片之间传送信号。

公开(公告)号：US09664729B2

公开(公告)日：2017-05-30

申请号：US13882710

申请日：2013-01-09

申请人： Randall C. Gray ,  Ibrahim S. Kandah ,  Philipe J. Perruchoud ,  John M. Pigott ,  Thierry Sicard

发明人： Randall C. Gray ,  Ibrahim S. Kandah ,  Philipe J. Perruchoud ,  John M. Pigott ,  Thierry Sicard

IPC分类号： G01R31/02 ,  G01R31/26 ,  G01R31/327 ,  H01H9/00

CPC分类号： G01R31/2608 ,  G01R31/261 ,  G01R31/3274 ,  H01H9/00

摘要： Operation of an insulated gate bipolar transistor (IGBT) is monitored by an apparatus that has a capacitor connected between a collector of the IGBT and an input node. A processing circuit, coupled to the input node, responds to current flowing through the capacitor by providing an indication whether a voltage level at the collector is changing and the rate of that change. The processing circuit also employs the capacitor current to provide an output voltage that indicates the voltage at the IGBT collector.

公开(公告)号：US07276419B2

公开(公告)日：2007-10-02

申请号：US11264068

申请日：2005-10-31

申请人： Vishnu Khemka ,  John M. Pigott ,  Ronghua Zhu ,  Amitava Bose ,  Randall C. Gray ,  Jeffrey J. Braun

发明人： Vishnu Khemka ,  John M. Pigott ,  Ronghua Zhu ,  Amitava Bose ,  Randall C. Gray ,  Jeffrey J. Braun

IPC分类号： H01L21/336

CPC分类号： H01L29/0847 ,  H01L29/0653 ,  H01L29/1083 ,  H01L29/66659 ,  H01L29/7835

摘要： A semiconductor device may include first, second, and third semiconductor layers. The first and third layers may have a first dopant type, and the second layer may have a second dopant type. A first region within the third semiconductor layer may have the second dopant type. A second region between the first region and the second semiconductor layer may have the first dopant type. A third region above the second region may have the first dopant type. A fourth semiconductor region adjacent to the third region may have a first concentration of the second dopant type. A source contact region may have a second concentration of the second dopant type adjacent to the third semiconductor region and adjacent to the fourth semiconductor region. The second concentration may be higher than the first concentration.

摘要翻译： 半导体器件可以包括第一，第二和第三半导体层。 第一和第三层可以具有第一掺杂剂类型，并且第二层可以具有第二掺杂剂类型。 第三半导体层内的第一区域可以具有第二掺杂剂类型。 第一区域和第二半导体层之间的第二区域可以具有第一掺杂剂类型。 第二区域上方的第三区域可以具有第一掺杂剂类型。 与第三区域相邻的第四半导体区域可以具有第二掺杂剂类型的第一浓度。 源极接触区域可以具有与第三半导体区域相邻并且与第四半导体区域相邻的第二掺杂剂类型的第二浓度。 第二浓度可能高于第一浓度。

公开(公告)号：US5483406A

公开(公告)日：1996-01-09

申请号：US128425

申请日：1993-09-30

申请人： Paul T. Bennett ,  Randall C. Gray ,  John M. Pigott

发明人： Paul T. Bennett ,  Randall C. Gray ,  John M. Pigott

IPC分类号： H02H3/027 ,  H02H3/04 ,  H02H9/04 ,  H02H3/20

CPC分类号： H02H9/046 ,  H02H3/027 ,  H02H3/046 ,  H02H9/041

摘要： An overvoltage protection circuit (11) for decoupling circuitry (12) from a voltage applied to an input (38). The overvoltage protection circuit (11) is integrated on an integrated circuit along with the circuitry (12). The overvoltage protection circuit (11) comprises a sense circuit (13), a timing circuit (14), a decoupling circuit (16), and a circuit (17). The sense circuit (13) detects when the voltage applied to the input (38) exceeds a threshold voltage. The timing circuit (14) is responsive to the sense circuit (13) and determines when the voltage exceeds the threshold voltage for a predetermined time. The decoupling circuit (16) is responsive to the timing circuit (14) and decouples the circuitry from the voltage applied to the input (38). The circuit (17) generates a logic signal indicating the circuitry has been decoupled.

摘要翻译： 一种用于使电路（12）与施加到输入（38）的电压去耦的过电压保护电路（11）。 过电压保护电路（11）与电路（12）一体集成在集成电路上。 过压保护电路（11）包括检测电路（13），定时电路（14），去耦电路（16）和电路（17）。 感测电路（13）检测施加到输入（38）的电压何时超过阈值电压。 定时电路（14）响应于感测电路（13），并且在预定时间内确定电压何时超过阈值电压。 解耦电路（16）响应于定时电路（14）并且将电路与施加到输入端（38）的电压分离。 电路（17）产生指示电路已经去耦的逻辑信号。

公开(公告)号：US20100079126A1

公开(公告)日：2010-04-01

申请号：US12242145

申请日：2008-09-30

申请人： John M. Pigott

发明人： John M. Pigott

IPC分类号： G05F1/565

CPC分类号： H02M3/156 ,  H02M2001/0016

摘要： A dual loop DC-to-DC converter is provided that includes a first control loop that maintains a DC output voltage (VOUT) less than or equal to a desired maximum value of the VOUT, a second control loop that operates simultaneously with the first control loop and maintains a DC input voltage (VIN) greater than or equal to a desired minimum value of the VIN, and a duty cycle selection module. The first control loop generates a first clock signal having a first duty cycle, and the second control loop generates a second clock signal having a second duty cycle. The duty cycle selection module continuously determines which one of the first duty cycle and the second duty cycle has a lower duty cycle value, and continuously generates a PWM output signal having a modulated duty cycle equal to the lower duty cycle value.

摘要翻译： 提供一种双回路DC-DC转换器，其包括第一控制回路，其保持小于或等于VOUT的期望最大值的DC输出电压（VOUT）;与第一控制同时操作的第二控制回路 并且保持大于或等于VIN的期望最小值的DC输入电压（VIN）和占空比选择模块。 第一控制环路产生具有第一占空比的第一时钟信号，而第二控制环路产生具有第二占空比的第二时钟信号。 占空比选择模块连续地确定第一占空比和第二占空比中的哪一个具有较低的占空比值，并连续产生具有等于较低占空比值的调制占空比的PWM输出信号。