公开(公告)号：US20170178781A1

公开(公告)日：2017-06-22

申请号：US14973314

申请日：2015-12-17

Applicant: Analog Devices Global

Inventor： Alan J. O'DONNELL ,  Robert GUYOL ,  Maria Jose MARTINEZ ,  Jan KUBIK ,  Padraig L. Fitzgerald ,  Javier CALPE MARAVILLA ,  Michael P. LYNCH ,  Eoin E. ENGLISH

IPC: H01F17/00

CPC classification number: H01F17/0006 ,  B81B3/00 ,  B81B3/0091 ,  G01R33/09 ,  H01F17/0033 ,  H01F2017/0066 ,  H01L43/08

Abstract: A magnetic device may include a magnetic structure, a device structure, and an associated circuit. The magnetic structure may include a patterned layer of material having a predetermined magnetic property. The patterned layer may be configured to, e.g., provide a magnetic field, sense a magnetic field, channel or concentrate magnetic flux, shield a component from a magnetic field, or provide magnetically actuated motion, etc. The device structure may be another structure of the device that is physically connected to or arranged relative to the magnetic structure to, e.g., structurally support, enable operation of, or otherwise incorporate the magnetic structure into the magnetic device, etc. The associated circuit may be electrically connected to the magnetic structure to receive, provide, condition or process of signals of the magnetic device.

公开(公告)号：US20160363462A1

公开(公告)日：2016-12-15

申请号：US14737403

申请日：2015-06-11

Applicant: Analog Devices Global

Inventor： Eoin E. ENGLISH ,  Javier CALPE MARAVILLA ,  Robert GUYOL ,  Alan J. O'DONNELL ,  Maria Jose MARTINEZ ,  Jan KUBIK ,  Krystian BALICKI

IPC: G01D5/20 ,  G01D5/26

CPC classification number: G01D5/20 ,  G01D5/145

Abstract: An embodiment of a position sensing system includes a signal generation circuit to generate an excitation signal according to a selected characteristic signal, a drive circuit to drive an excitation source with the excitation signal, an input circuit to receive a sensor output while driving the excitation source, a signal detection circuit to identify a component of the sensor output corresponding to the characteristic signal, and a control circuit to determine the position of the movable object as a function of the identified component of the sensor output. The positioning system may be included an electronic camera, where the movable object may be a lens. The excitation source may be a conductive coil, the excitation a magnetic field, and the sensor a magneto resistive sensor. Alternatively, the excitation source may be an optical excitation source, the excitation an optical excitation, and the sensor an optical sensor.

Abstract translation: 位置检测系统的一个实施例包括：信号产生电路，用于根据所选择的特征信号产生激励信号;驱动电路，用激励信号驱动激励源;输入电路，用于在驱动激励源时接收传感器输出; 信号检测电路，用于识别对应于特征信号的传感器输出的分量;以及控制电路，用于根据所识别的传感器输出的分量确定可移动物体的位置。 定位系统可以包括电子照相机，其中可移动物体可以是透镜。 励磁源可以是导电线圈，激励磁场，并且传感器是磁阻传感器。 或者，激发源可以是光学激发源，激发光学激发，并且传感器是光学传感器。