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1. 发明申请

WO2013141981A3 MAGNETIC FIELD SENSOR INTEGRATED CIRCUIT WITH INTEGRAL FERROMAGNETIC MATERIAL 审中-公开
标题翻译：磁场传感器集成电路与整体非线性材料
公开(公告)号：WO2013141981A3
公开(公告)日：2013-11-07
申请号：PCT/US2013025858
申请日：2013-02-13
申请人： ALLEGRO MICROSYSTEMS LLC , VIG RAVI , TAYLOR WILLIAM P , DAVID PAUL , SCHELLER P KARL , FRIEDRICH ANDREAS P , LO MARIE-ADELAIDE , BURDETTE ERIC , SHOEMAKER ERIC , DOOGUE MICHAEL C
发明人： VIG RAVI , TAYLOR WILLIAM P , DAVID PAUL , SCHELLER P KARL , FRIEDRICH ANDREAS P , LO MARIE-ADELAIDE , BURDETTE ERIC , SHOEMAKER ERIC , DOOGUE MICHAEL C
IPC分类号： G01R33/00
CPC分类号： H01L29/82 , G01R33/0047 , G01R33/0052 , G01R33/06 , H01L2224/45147 , H01L2224/48247 , H01L2924/00011 , H01L2924/00 , H01L2924/01033
摘要： A magnetic field sensor includes a lead frame, a die supporting a magnetic field sensing element and attached to the lead frame, a non-conductive mold material enclosing the die and a portion of the lead frame, and optionally a ferromagnetic mold material secured to a portion of the non-conductive mold material. The hard or soft ferromagnetic mold material may be tapered and includes a non-contiguous central region, as may contain a separately formed element. Embodiments include die up, lead on chip, and flip-chip arrangements, integrated components, such as capacitors, on the lead frame, and a bias magnet with a lateral channel. Optional features include a slotted lead frame, a molded suppression device, a passive device lead-coupled and a ferromagnetic bead. A coil may be secured to the non-conductive mold material and a passive component may be coupled across separated portions of a lead.
摘要翻译：磁场传感器包括引线框架，支撑磁场感测元件并连接到引线框架的管芯，包封管芯和引线框架的一部分的非导电模具材料，以及可选地固定到引线框架的铁磁模具材料部分非导电模具材料。硬或软铁磁模具材料可以是锥形的并且包括不连续的中心区域，可以包含单独形成的元件。实施例包括在引线框架上的裸片，芯片上引脚和倒装芯片布置，诸如电容器的集成部件，以及具有侧向通道的偏置磁体。可选功能包括开槽引线框架，模制抑制装置，无源器件引线耦合和铁磁珠。线圈可以固定到非导电模具材料上，并且无源部件可以跨越引线的分离部分耦合。

2. 发明申请

WO2010096367A4 CIRCUITS AND METHODS FOR GENERATING A SELF-TEST OF A MAGNETIC FIELD SENSOR 审中-公开
标题翻译：用于产生磁场传感器自检的电路和方法
公开(公告)号：WO2010096367A4
公开(公告)日：2010-11-25
申请号：PCT/US2010024256
申请日：2010-02-16
申请人： ALLEGRO MICROSYSTEMS INC , FRIEDRICH ANDREAS P , FOLETTO ANDREA , DOOGUE MICHAEL C , TAYLOR WILLIAM P , VIG RAVI , SCHELLER P KARL
发明人： FRIEDRICH ANDREAS P , FOLETTO ANDREA , DOOGUE MICHAEL C , TAYLOR WILLIAM P , VIG RAVI , SCHELLER P KARL
IPC分类号： G01R33/00
CPC分类号： G01R33/0035 , G01R33/0023 , G01R35/005
摘要： A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation.
摘要翻译：磁场传感器包括内置的自检电路，其允许对磁场传感器的电路的大部分或全部进行自检，包括在磁场传感器内使用的磁场感测元件的自检，同时磁场传感器正常工作。

3. 发明申请

WO2009111104A3 SELF-CALIBRATION ALGORITHMS IN A SMALL MOTOR DRIVER IC WITH AN INTEGRATED POSITION SENSOR 审中-公开
标题翻译：具有集成位置传感器的小型电机驱动器IC中的自校准算法
公开(公告)号：WO2009111104A3
公开(公告)日：2009-11-12
申请号：PCT/US2009031632
申请日：2009-01-22
申请人： ALLEGRO MICROSYSTEMS INC , VIG RAVI , DAVID PAUL , MILANO SHAUN D , DOOGUE MICHAEL C , HAAS DAVID J
发明人： VIG RAVI , DAVID PAUL , MILANO SHAUN D , DOOGUE MICHAEL C , HAAS DAVID J
IPC分类号： H02P25/02
CPC分类号： G05B19/19 , G05B2219/41099 , G05B2219/41337 , G05B2219/42152 , G05B2219/45178 , H02P25/034
摘要： A motion control device for controlling a motor is presented. The motion control device is operable to scale or adjust an input relative to an input range that is based on calibration values and to use that scaled input to produce a drive signal to drive the motor. The motion control device performs a self-calibration to produce the calibration values. The self-calibration involves measuring home position and full travel position values for the motor.
摘要翻译：提出了一种用于控制电动机的运动控制装置。运动控制装置可操作以相对于基于校准值的输入范围缩放或调整输入，并且使用该缩放输入来产生用于驱动马达的驱动信号。运动控制装置执行自校准以产生校准值。自校准包括测量电机的起始位置和全行程位置值。

4. 发明申请

WO2007087121A3 ARRANGEMENTS FOR AN INTEGRATED SENSOR 审中-公开
标题翻译：一体化传感器的安排
公开(公告)号：WO2007087121A3
公开(公告)日：2008-04-03
申请号：PCT/US2007000093
申请日：2007-01-04
申请人： ALLEGRO MICROSYSTEMS INC , DOOGUE MICHAEL C , TAYLOR WILLIAM P , MANGTANI VIJAY
发明人： DOOGUE MICHAEL C , TAYLOR WILLIAM P , MANGTANI VIJAY
IPC分类号： G01R15/20 , G01R33/02 , G01R33/06 , G01R33/07 , G01R33/09 , H01L43/06
CPC分类号： H01L43/04 , B82Y25/00 , G01R15/08 , G01R15/207 , G01R33/02 , G01R33/06 , G01R33/07 , G01R33/09 , G01R33/093 , H01L23/49541 , H01L25/162 , H01L43/02 , H01L43/065 , H01L43/08 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要： An integrated circuit (10) can have a first substrate (14) supporting a magnetic field sensing element (30) and a second substrate (26) supporting another magnetic field sensing element (20). The first and second substrates can be arranged in a variety of configurations. Another integrated circuit can have a first magnetic field sensing element and second different magnetic field sensing element disposed on surfaces thereof.
摘要翻译：集成电路（10）可以具有支撑磁场感测元件（30）的第一基板（14）和支撑另一磁场感测元件（20）的第二基板（26）。第一和第二基板可以以各种配置布置。另一个集成电路可以具有设置在其表面上的第一磁场感测元件和第二不同的磁场感测元件。

5. 发明申请

WO2009108422A3 MAGNETIC FIELD SENSOR WITH AUTOMATIC SENSITIVITY ADJUSTMENT 审中-公开
标题翻译：具有自动灵敏度调整的磁场传感器
公开(公告)号：WO2009108422A3
公开(公告)日：2009-12-10
申请号：PCT/US2009031776
申请日：2009-01-23
申请人： ALLEGRO MICROSYSTEMS INC , DOOGUE MICHAEL C , MONREAL GERARDO , TAYLOR WILLIAM P
发明人： DOOGUE MICHAEL C , MONREAL GERARDO , TAYLOR WILLIAM P
IPC分类号： G01R33/02
CPC分类号： G01R33/07 , G01R33/0023 , G01R33/0041
摘要： Magnetic field sensors have a magnetic field sensing element and also a feedback circuit to provide a gain-adjustment signal to affect a sensitivity associated with the magnetic field sensing element. In some arrangements, the feedback circuit can include piezoresistors to sense a strain of a substrate over which the magnetic field sensor is disposed. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed strain. In other arrangements, the feedback circuit can generate pulsed magnetic fields proximate to the magnetic field sensing element in order to directly measure the sensitivity of the magnetic field sensing element. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed sensitivity.
摘要翻译：磁场传感器具有磁场传感元件以及反馈电路，以提供增益调节信号以影响与磁场传感元件相关联的灵敏度。在一些布置中，反馈电路可以包括压电电阻器以感测其上设置有磁场传感器的衬底的应变。利用这些布置，反馈电路可以根据感测的应变生成增益调节信号。在其它布置中，反馈电路可产生接近磁场感测元件的脉冲磁场，以便直接测量磁场感测元件的灵敏度。利用这些布置，反馈电路可以根据感测的灵敏度生成增益调节信号。

6. 发明申请

WO2006124252A3 INTEGRATED MAGNETIC FLUX CONCENTRATOR 审中-公开
标题翻译：集成磁通集中器
公开(公告)号：WO2006124252A3
公开(公告)日：2007-02-15
申请号：PCT/US2006016531
申请日：2006-05-01
申请人： ALLEGRO MICROSYSTEMS INC , TAYLOR WILLIAM P , DICKINSON RICHARD , DOOGUE MICHAEL C
发明人： TAYLOR WILLIAM P , DICKINSON RICHARD , DOOGUE MICHAEL C
IPC分类号： G01R33/02 , G01R15/20 , H01L27/22 , H01L43/04
CPC分类号： G01R15/207
摘要： A method and apparatus provide a substrate having a depression into which a magnetic material is disposed, forming a magnetic flux concentrator and/or a permanent magnet. A magnetic field sensing element can be disposed proximate to the depression.
摘要翻译：一种方法和装置提供具有凹陷的基板，磁性材料设置在其中，形成磁通量聚集器和/或永磁体。磁场感测元件可以靠近凹部设置。

7. 发明专利

JP2014029340A Arrangements for integrated sensor 有权
标题翻译：集成传感器安装
公开(公告)号：JP2014029340A
公开(公告)日：2014-02-13
申请号：JP2013189638
申请日：2013-09-12
申请人： Allegro Microsystems Llc , アレグロ・マイクロシステムズ・エルエルシー
发明人： DOOGUE MICHAEL C , TAYLOR WILLIAM P , MANGTANI VIJAY
IPC分类号： G01R33/06 , G01R15/20 , G01R33/02 , G01R33/07 , G01R33/09 , H01L43/02 , H01L43/04 , H01L43/06 , H01L43/08
CPC分类号： H01L43/04 , B82Y25/00 , G01R15/08 , G01R15/207 , G01R33/02 , G01R33/06 , G01R33/07 , G01R33/09 , G01R33/093 , H01L23/49541 , H01L25/162 , H01L43/02 , H01L43/065 , H01L43/08 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To provide an integrated circuit type current sensor having a reduced size, improved accuracy, and/or improved dynamic range.SOLUTION: An integrated circuit 10 comprises, over a lead frame 12, a first substrate 14 supporting a magnetic field sensing element 20, a second substrate 26 supporting another magnetic field sensing element 30, and at least one electronic component 18. The integrated circuit has a first operation range corresponding to a first magnetic field sensing element 20 having a first sensitivity, and a second, selected and different, operation range corresponding to a second magnetic field sensing element 30 having a second different sensitivity.
摘要翻译：要解决的问题：提供具有减小的尺寸，提高的精度和/或改善动态范围的集成电路式电流传感器。解决方案：集成电路10包括在引线框架12上的支撑磁场的第一基板14 感测元件20，支撑另一磁场感测元件30的第二基板26和至少一个电子元件18.集成电路具有对应于具有第一灵敏度的第一磁场感测元件20的第一操作范围，选择和不同的操作范围对应于具有第二不同灵敏度的第二磁场感测元件30。

8. 发明专利

JP2013224958A Magnetic field sensor with automatic sensitivity adjustment 有权
标题翻译：具有自动灵敏度调整的磁场传感器
公开(公告)号：JP2013224958A
公开(公告)日：2013-10-31
申请号：JP2013139605
申请日：2013-07-03
申请人： Allegro Microsystems Llc , アレグロ・マイクロシステムズ・エルエルシー
发明人： DOOGUE MICHAEL C , GERARDO MONREAL , TAYLOR WILLIAM P
IPC分类号： G01R33/07
CPC分类号： G01R33/07 , G01R33/0023 , G01R33/0041
摘要： PROBLEM TO BE SOLVED: To adjust sensitivity of a magnetic field sensor comprising a magnetic field sensing element supported by a substrate.SOLUTION: The magnetic field sensing element 108 generates an output signal comprising a magnetic field-responsive signal portion. The magnetic field-responsive signal portion has sensitivity to a first magnetic field. The magnetic field sensor also comprises a feedback circuit 72. The feedback circuit comprises a first piezoresistor 80 supported by the substrate. The first piezoresistor has a node at which a first piezoelectric output signal is generated. The first piezoelectric output signal is responsive to a strain of the substrate in a first direction. The feedback circuit also comprises a second piezoresistor 86 supported by the substrate. Each of the first and second piezoresistors has a corresponding primary response axis, where the first and second piezoresistors are disposed in a relative orientation such that their primary response axes are generally perpendicular. The magnetic field sensor also comprises a gain-adjustment circuit 118 supported by the substrate and is configured to adjust the sensitivity of the magnetic field-responsive signal portion in response to a gain-adjustment signal 106.
摘要翻译：要解决的问题：调整包括由衬底支撑的磁场感测元件的磁场传感器的灵敏度。解决方案：磁场感测元件108产生包括磁场响应信号部分的输出信号。磁场响应信号部分对第一磁场具有灵敏度。磁场传感器还包括反馈电路72.反馈电路包括由衬底支撑的第一压电电阻80。第一压电电阻器具有产生第一压电输出信号的节点。第一压电输出信号响应于第一方向上的衬底的应变。反馈电路还包括由衬底支撑的第二压电电阻器86。第一和第二压电电阻器中的每一个具有对应的主要响应轴，其中第一和第二压电电阻器以相对定向设置成使得它们的主要响应轴线大致垂直。磁场传感器还包括由衬底支撑的增益调节电路118，并且被配置为响应于增益调整信号106调整磁场响应信号部分的灵敏度。

9. 发明专利

JP2014222254A 電流検知回路と集積電流センサの構成审中-公开
标题翻译：电流检测电路和集成电流传感器的配置
公开(公告)号：JP2014222254A
公开(公告)日：2014-11-27
申请号：JP2014177801
申请日：2014-09-02
申请人：アレグロ・マイクロシステムズ・エルエルシー , Allegro Microsystems Llc
发明人： DOOGUE MICHAEL C , DICKINSON RICHARD , TAYLOR WILLIAM P
IPC分类号： G01R15/20
CPC分类号： G01R15/207 , G01R15/202 , G01R15/205 , H01L2224/05553 , H01L2224/16145 , H01L2224/32145 , H01L2224/48137 , H01L2224/48145 , H01L2224/48247 , H01L2224/49171 , H01L2224/73265 , H01L2924/181 , H01L2924/00012 , H01L2924/00
摘要：【課題】相対的に高い感度と、さらには相対的に高い絶縁破壊電圧の両方を有する電流センサを実現する。【解決手段】電流を検知するための電子回路10は、対向する第1の主面40aおよび第2の主面40bと、電流を搬送する電流導体とを有する回路基板40を含む。前記回路基板は導電回路配線を有するプリント回路基板であり、そして前記プリント回路基板はガラス繊維材料またはセラミック材料からなり、電流導体は、回路基板上に配置された回路配線を含む。電子回路はまた、電流導体をまたぐような位置で回路基板上に配置され回路基板に電気的に結合された集積回路11も含む。前記電流導体は前記回路基板の第2の面40b上に配置され、前記実装された集積回路は前記電流導体に近い位置で前記回路基板の第1の面40a上に配置されている。【選択図】図1A
摘要翻译：要解决的问题：实现具有相对高的灵敏度和相对较高的击穿电压的电流传感器。解决方案：用于检测电流的电子电路10包括电路板40，其包括第一主表面40a和第二主表面 40b面对面; 以及承载电流的电流导体。电路板40是具有导电电路布线元件的印刷电路板，印刷电路板由玻璃纤维材料或陶瓷材料形成，电流导体包括布置在电路板40上的电路布线元件。电子电路10 还包括集成电路11，其布置在电路板40上跨过电流导体并且电耦合到电路板40的位置。电流导体布置在电路板40的第二表面40b上，并且封装的集成电路 11被布置在电路板40的靠近电流导体的位置的第一表面40a上。

10. 发明专利

JP2013253994A TWO-TERMINAL LINEAR SENSOR 审中-公开
公开(公告)号：JP2013253994A
公开(公告)日：2013-12-19
申请号：JP2013200782
申请日：2013-09-27
申请人： ALLEGRO MICROSYSTEMS LLC
发明人： DOOGUE MICHAEL C , JONATHAN LAMARRE , MONICA J THOMAS
IPC分类号： G01R33/02 , G01R33/07 , G01R33/09
摘要： PROBLEM TO BE SOLVED: To provide a circuit comprising: a linear magnetic field sensor comprising an integrated circuit having only two terminals, one being a power supply terminal and the other being a ground terminal; and a current sensing device connected to the linear magnetic field sensor and usable to measure a current that is proportional to a magnetic field sensed by the linear magnetic field sensor.SOLUTION: A circuit 40 comprises: a linear magnetic field sensor 10 comprising an integrated circuit having only two terminals, one being a power supply terminal 24 and the other being a ground terminal 26; and a current sensing device 42 connected to the linear magnetic field sensor and usable to measure a current that is proportional to a magnetic field sensed by the linear magnetic field sensor.

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