公开(公告)号：US10090796B2

公开(公告)日：2018-10-02

申请号：US15403554

申请日：2017-01-11

申请人： Huan Ge ,  Rongguan Zhou

发明人： Huan Ge ,  Rongguan Zhou

IPC分类号： H02K41/00 ,  H02P29/50 ,  H02K11/215 ,  H02P25/06

摘要： A vibration conformance compensation device includes a linear motor including a vibrator and a coil, a signal generator connecting with the linear motor electrically and outputting a drive signal for driving the linear motor to vibrate, a working parameter feedback module, a processing module connecting having a target vibration state value which is set in the linear motor in advance for comparing the real-time vibration state parameters of the linear motor with the target vibration state value to obtain the comparison result, and a signal conditioning module connecting with the processing module and the signal generator electrically and adjusting the drive signal in accordance with the comparison result to make the vibration state of the linear motor consistent with the target vibration state.

公开(公告)号：US09915853B2

公开(公告)日：2018-03-13

申请号：US14756711

申请日：2015-10-02

申请人： Lam Khanh Nguyen

发明人： Lam Khanh Nguyen

IPC分类号： G02F1/39 ,  G02F1/35 ,  G02F1/355 ,  H02P25/06

CPC分类号： G02F1/39 ,  G02F1/3501 ,  G02F1/3551 ,  G02F2001/3503 ,  G02F2001/3505 ,  G02F2001/3507 ,  G02F2001/3546 ,  H02P25/034 ,  H02P25/06

摘要： An OPO with very fast and accurate tuning. The angle of the crystals in the OPO is controlled by converting the linear motion of a voice coil into rotational motion. In preferred embodiments one or two OPO crystals are mounted as a crystal unit that can rotate around an axis such that the angle of the crystals with respect to the beams' direction can be varied to generate the desired wavelengths. The crystal unit has a lever that is connected to the shaft of the voice coil such that as the shaft extend or retracts the level is pulled or pushed and the linear motion of the shaft is converted to an angular motion of the crystal unit. The position of the voice-coil shaft is controlled in a close-loop based on a built-in encoder. The relation between the reading of the encoder and the crystals' angle is recorded and provides the calibration of the unit. Preferably calibration is done by measuring the output wavelength of the OPO as a function of the encoder position.

公开(公告)号：US09912277B2

公开(公告)日：2018-03-06

申请号：US15242804

申请日：2016-08-22

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Tsutomu Murata

IPC分类号： H02P25/06 ,  H02P25/032

CPC分类号： H02P25/06 ,  H02P25/032

摘要： In one embodiment, a control circuit for a linear vibration motor may be configured to drive the linear vibration motor to vibrate using a closed loop run mode followed by an open loop run mode, and may be configured to control the linear vibration motor to stop vibrating using an anti-drive signal wherein the frequency is adjusted to be near to an estimated value of the natural frequency of the linear vibration motor.

公开(公告)号：US09882520B2

公开(公告)日：2018-01-30

申请号：US15424027

申请日：2017-02-03

申请人： B&R INDUSTRIAL AUTOMATION GMBH

发明人： Stefan Huber ,  Helmut Herzog

IPC分类号： H02K41/00 ,  H02P25/06 ,  B65G43/00

CPC分类号： H02P25/06 ,  B65G43/00 ,  B65G2203/047 ,  G05B7/02 ,  G05B19/416 ,  G05B2219/41217 ,  G05B2219/41222

摘要： To be able to activate a smoothing filter for a setpoint, with which the movement of a drive axis (A, Ai) of a drive unit (AE) can also be controlled during the movement without a negative effect on the movement, it is provided that the smoothing filter (10) is initialized with a setpoint profile (Sinit) so that a current movement phase ((S0, {dot over (S)}0, . . . , S0(x))) is continued continuously and the repeated time derivative (S(x+1)) of the highest time derivative (S(x)) of the setpoint (S(t), S(k)) is limited.

公开(公告)号：US20180026571A1

公开(公告)日：2018-01-25

申请号：US15403532

申请日：2017-01-11

申请人： Huan Ge ,  Lijian Ye ,  Rongguan Zhou

发明人： Huan Ge ,  Lijian Ye ,  Rongguan Zhou

IPC分类号： H02P29/50 ,  H02P25/06

CPC分类号： H02P29/50 ,  H02P23/20 ,  H02P25/032 ,  H02P25/06 ,  H02P2203/03

摘要： The invention discloses a real-time vibration state monitoring system. The system includes a linear motor, a signal generating module for driving the linear motor to vibrate, a working parameters feedback module, a calculating module, an initial position recording module, and a signal control module. The system can control the amplitude of the vibrator by monitoring the vibration state of the vibrator in the linear motor and adjusting the drive signal; therefore, the effect to normal working or reliability of the linear motor due to oversized amplitude can be avoided. A monitoring method is also provided.

公开(公告)号：US20170353136A1

公开(公告)日：2017-12-07

申请号：US15667369

申请日：2017-08-02

申请人： Paramount Pictures Corporation

发明人： Margaret G. BRIER ,  John K. BUYCO ,  Chelsea R. FISCHBACH ,  Scott M. OGILVIE ,  Johnson QU ,  Ayyappa P. VEMULKAR

IPC分类号： H02P25/06 ,  B60L7/14 ,  B60L7/26 ,  B60L7/28 ,  B60L11/18 ,  B60L13/03 ,  B60L15/00 ,  B60L15/20 ,  H02P3/14 ,  B60L7/10 ,  B60L3/12

CPC分类号： H02P25/06 ,  B60L3/12 ,  B60L7/10 ,  B60L7/14 ,  B60L7/26 ,  B60L7/28 ,  B60L11/1803 ,  B60L13/03 ,  B60L15/005 ,  B60L15/20 ,  B60L2200/12 ,  B60L2200/26 ,  B60L2200/36 ,  B60L2220/12 ,  B60L2240/12 ,  B60L2240/14 ,  H02P3/14 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7275

摘要： Present example embodiments relate generally to a ground transportation system for interacting with one or more vehicles, the vehicle comprising at least one magnetic element fixedly attached to the vehicle, each magnetic element operable to generate a magnetic field having a first magnitude and a first direction, the system comprising a magnetic coil assembly fixedly positioned near an area traversable by the vehicle and comprising a core and a magnetic wire coil wrapped around the core, the magnetic coil assembly operable to generate a magnetic field having a second magnitude and a second direction; and an energy storage unit operable to release energy to and store energy from the magnetic coil assembly.

公开(公告)号：US09762169B1

公开(公告)日：2017-09-12

申请号：US15412088

申请日：2017-01-23

申请人： Lubin Mao

发明人： Lubin Mao

IPC分类号： H02K41/00 ,  H02P1/00 ,  H02P3/00 ,  H02P25/06 ,  H02K11/33 ,  B06B1/02 ,  H02K33/04

CPC分类号： H02P25/06 ,  B06B1/0238 ,  B06B1/045 ,  B06B2201/53 ,  H02K11/33 ,  H02K33/04 ,  H02K33/16 ,  H02K2211/03 ,  H02K2213/03

摘要： The present disclosure discloses a linear motor system. The system includes a linear motor and a drive module which drives the linear motor to vibrate. The linear motor includes a housing having an accommodating space, a vibrating module accommodated in the accommodating space and an elastic part for supporting the vibrating module in the accommodating space elastically. The drive module includes a drive unit for driving the vibrating module to vibrate and a tuning unit for regulating the resonant frequency of the vibrating module. Moreover, the linear motor system of the present disclosure can meet vibration requirements of various application programs and scenes.

公开(公告)号：US09762149B2

公开(公告)日：2017-09-12

申请号：US14499661

申请日：2014-09-29

申请人： SONY CORPORATION

发明人： Tomoya Takei

IPC分类号： H04N5/232 ,  G03B3/10 ,  G03B5/00 ,  H02P25/06 ,  H02N2/02 ,  H02N2/06

CPC分类号： H02N2/062 ,  G03B3/10 ,  G03B5/00 ,  G03B2205/0046 ,  G03B2205/0061 ,  H02N2/025 ,  H02P25/06 ,  H04N5/23212

摘要： There is provided a drive controller including a determination part that compares a target stop position of a movable body, which is driven by a piezoelectric actuator driven by a piezoelectric element expanded and contracted in response to an applied voltage, with a real position of the movable body acquired on the basis of a position sensor, and determines whether or not the target stop position matches with the real position, and a drive control part that turns off energization of the piezoelectric actuator when the target stop position matches with the real position while the movable body is being driven by the piezoelectric actuator.

公开(公告)号：US09716459B2

公开(公告)日：2017-07-25

申请号：US15221451

申请日：2016-07-27

申请人： Murata Machinery, Ltd.

发明人： Satoshi Hanaka ,  Yasutake Yamada

IPC分类号： H02K29/08 ,  H02P25/06 ,  H02K11/215 ,  H02K41/02 ,  G01D5/14

CPC分类号： H02P25/06 ,  G01D5/145 ,  H02K11/215 ,  H02K41/02 ,  H02K41/031 ,  H02P25/064

摘要： A mobile body moves along a magnetic pole path. The magnetic pole path includes a first magnetic pole section and a second magnetic pole section. The mobile body includes a detector, a rate changing unit, and a position specifying unit. The detector detects a phase angle in accordance with a magnetic flux of the magnetic pole path. The rate changing unit changes a position conversion rate obtained by associating a phase angle of the magnetic pole path with a position of the magnetic pole path based on the phase angle detected by the detector. The position specifying unit specifies a position of the mobile body along the magnetic pole path based on the phase angle detected by the detector and the position conversion rate changed by the rate changing unit.

公开(公告)号：US20170179865A1

公开(公告)日：2017-06-22

申请号：US15127017

申请日：2015-03-19

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： AVOKI M. OMEKANDA ,  CHANDRA S. NAMUDURI ,  SURESH GOPALAKRISHNAN ,  THOMAS W. NEHL

IPC分类号： H02P25/06 ,  F02M51/06 ,  F02D41/20

摘要： A method for operating an electromagnetic actuator includes an actuation event utilizing a current waveform for the actuator characterized by an initial peak pull-in current in a first direction of current flow when the actuator is commanded to an actuated position; and a reversed peak current in a second opposite direction of current flow applied after the actuator is commanded to a rest position. The reversed peak current has a magnitude that is greater than the magnitude of the initial peak pull-in current.