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| Application No. | Application Title | Issue Date |
| 20120081043 | CONTROL OF A LINEAR MOTOR Disclosed is a linear electric motor having a fixed primary comprising a stator divided into a number of sections, including a translating secondary having an operative length longer than any two adjacent sections of the stator in the form of a reaction plate, and a con... | 04/05/2012 |
| 20120068635 | Linear Actuator and a Table Comprising a Linear Actuator as well as a Motor for the Linear Actuator An embodiment linear actuator for an electrically adjustable piece of furniture includes a brushless DC motor arranged to effect a linear movement of the linear actuator, as well as a control device for controlling the motor.... | 03/22/2012 |
| 20110309775 | Method and Apparatus for Contorlling a Linear Motion System A method of controlling a linear motion system has a linear synchronous motor comprising a stator and at least two carrier units moveable in relation to the stator, the stator comprising a number of coil units, each of the at least two carrier units comprising a magneti... | 12/22/2011 |
| 20110306467 | ELECTROMAGNETIC LOAD DEVICE FOR AN APPARATUS FOR PHYSICAL EXERCISE, AND APPARATUS PROVIDED WITH SAID DEVICE A load device for an apparatus for physical exercise that comprises a device that generate the load called linear motor, a micro controller, a series of sensors (dynamic, diagnostic and physiological) and a user interface.... | 12/15/2011 |
| 20110304286 | BLOCK SWITCH CONTROLLER COMPRISING A CLOSED LOOP VECTOR CONTROLLER INCORPORATING A DELAY STATE HAVING A FEEDBACK GAIN A block switch controller for a linear motor is disclosed, the linear motor having a plurality of motor blocks, a shuttle which is propelled by the magnetic forces generated by a motor current passing through the motor blocks, a plurality of motor block switches selecti... | 12/15/2011 |
| 20110304285 | MOTOR DRIVE CIRCUIT A motor drive circuit includes: a digital filter configured to attenuate amplitude in a frequency band including a resonance frequency of an actuator in a target current signal, the target current signal being a digital signal indicative of a target value of a drive cur... | 12/15/2011 |
| 20110298480 | Compensation of parasitic capacitances of capacitive sensors Circuits and methods for compensating the impact of parasitic capacitances on capacitive sensors have been achieved. The charge of a compensation capacitor assigned to each capacitive sensor is used to neutralize the charge of the parasitic capacitor.... | 12/08/2011 |
| 20110284695 | DRIVE DEVICE FOR APPLYING A MAGNETIC PULSE TO A MECHANICAL ASSEMBLY AND AIRCRAFT LOAD EJECTION DEVICE IMPLEMENTING SAME This device comprises an electromagnetic coil (3) in which there is able to slide a piston (6) which has at least a portion made of a material having paramagnetic susceptibility and which is placed in contact with the mechanical member when the drive devic... | 11/24/2011 |
| 20110210686 | ELECTRIC MACHINE An electric machine including: a first part, being a stator or rotor/runner, including a first segment with a first number of mutually spaced poles; a second part, being a rotor/runner or stator, including a second segment with a second number of mutually spaced poles a... | 09/01/2011 |
| 20110175555 | PROCEDURE AND DEVICE FOR CONTROLLING ACTUATORS A procedure for controlling actuators within an on-board power system, which provides different operating voltages and temporal on-board power voltage changes. The actuator or actuators are controlled with different pulse-width modulated control signals, whereby the pul... | 07/21/2011 |
| 20110163769 | METHODS OF DETERMINING MID-STROKE POSITIONS OF ACTIVE MATERIAL ACTUATED LOADS Systems for and methods of determining at least one mid-stroke position of an active material actuated load by causing a stress induced rapid change in electrical resistance within the active material element, or modifying an ancillary circuit, when the load is at the m... | 07/07/2011 |
| 20110156619 | LINEAR SYNCHRONOUS MOTOR CONTROL METHOD AND CONTROL APPARATUS It makes possible to control a movable element to be smoothly movable by a sensor-less vector control in an equal speed area, without using a position sensor, and possible to perform a stop control and control it in a low speed area. In a case when a moving speed of the... | 06/30/2011 |
| 20110109252 | LINEAR SCALE, LINEAR MOTOR, AND LINEAR MOTOR CONTROLLER Disclosed is a linear scale for obtaining a distance from a reference point. A scale detection mechanism is adapted to output waveform signals of the same phase. Also the scale detection mechanism corresponds to a magnetic flux density generated by magnetic bodies of a ... | 05/12/2011 |
| 20110101896 | LINEAR MOTOR DEVICE Provided is a linear motor device which is compact even when a stroke is increased, which can reduce heat generation, and which can eliminate damping force caused by circulating current. The linear motor device includes a linear motor that includes a movable member havi... | 05/05/2011 |
| 20110088643 | Valve train device In a valve drive train device, in particular for a valve drive of an internal combustion engine, with a switching unit comprising an actuator with a solenoid unit and with a control unit for monitoring switching operations of the switching unit provided for switching an... | 04/21/2011 |
| 20110080123 | LINEAR-ROTARY ACTUATORS, ACTUATOR SYSTEMS, AND METHODS OF OPERATION THEREFOR In an embodiment, an actuator includes a plurality of stator windings adapted to produce a first stator magnetic field that translates along a stator axis, and to produce a second stator magnetic field that rotates around the stator axis. In addition, the actuator inclu... | 04/07/2011 |
| 20110062901 | Arrangement of Stator Modules in a Linear Motor A linear motor is disclosed, which has a stator and at least one rotor, the stator having at least two stator modules. Each stator module has a coil arrangement and, seen in longitudinal extension of the respective stator module, at least at one end, a displacement sens... | 03/17/2011 |
| 20110029197 | ELECTRICALLY-POWERED ACTUATOR DRIVING CONTROL APPARATUS AND DRIVING CONTROL METHOD AND VEHICLE HAVING ELECTRICALLY-POWERED ACTUATOR DRIVING CONTROL APPARATUS It is a task of the invention to obtain a favorable thrust force characteristic with respect to a stroke of an actuator even if the actuator is used in a thrust force control. To solve the task, in the present invention, a linear motor type electrically-powered actuator... | 02/03/2011 |
| 20100294161 | CABLE TRANSPORTATION SYSTEM AND RELATIVE OPERATING METHOD A cable transportation system has a pull cable; at least one transportation unit moving along a given path and connectable selectively to the pull cable by a coupling device; at least one passenger station where the transportation unit is detached from the pull cable; a... | 11/25/2010 |
| 20100295488 | VIBRATORY DRIVING DEVICE A vibratory driving device 1 comprising a shaft-like driving member 8, a electromechanical transducer 6 which can incline the driving member 8 and which also can displace the driving member 8 in the axial direction of the driving membe... | 11/25/2010 |
| 20100292878 | DRIVE CONTROL APPARATUS FOR ELECTRIC CAR [Problem] A drive control apparatus for an electric car as can correct a synchronizing frequency without employing beacons, is proposed. [Means for Resolution] Wheel-diameter correction information output means includes wheel-diameter infor... | 11/18/2010 |
| 20100253251 | DEVICE FOR SUPPLYING ENERGY TO A LONG STATOR WINDING HAVING MULTIPLE WINDING SECTIONS A device for supplying energy to a long stator winding having multiple winding sections. The device includes an energy source, a supply line connected to the energy source, section switches that are connected to the supply line and that each have a connection for connec... | 10/07/2010 |
| 20100181945 | Control Apparatus and Method for Linear Synchronous Motor The start timing of the pole position inference process of the linear motor installed vertically is delayed by a predetermined time after instruction of brake release. For example, from (1) increasing of the thrust instruction value of an ASR control system up to a pred... | 07/22/2010 |
| 20100164413 | DRIVING CIRCUIT FOR VOICE COIL MOTOR AND METHOD THEREOF The invention provides a driving circuit for a voice coil motor. In one embodiment, the driving circuit includes a logic circuit, a digital-to-analog converter, and an output circuit. The logic circuit generates a series of samples of a digital output signal according t... | 07/01/2010 |
| 20100167556 | THREE DEGREE OF MOVEMENT MOVER AND METHOD FOR CONTROLLING A THREE DEGREE OF MOVEMENT MOVER A mover (344) moving a stage (238) along a first axis and about a second axis includes a magnetic component (454), and a conductor component (456). The magnetic component (454) includes one or more magnets (454D) that are surrou... | 07/01/2010 |
| 20100157467 | Quiet Retraction System A quiet retraction method for regulating constant velocity while parking an arm within a disk drive is described. The method comprises the steps of: driving a motor for the arm using a first drive current for a first period; floating the motor; sampling a back electromo... | 06/24/2010 |
| 20100117627 | MEASURING LINEAR VELOCITY An apparatus for measuring linear velocity of a movable element relative to a stationary element includes a magnetic element fixed in relation to the stationary element. A soft-magnetic yoke is fixed in relation to the movable element to move with the movable element an... | 05/13/2010 |
| 20100097015 | Distance measurement with capacitive sensor Circuits and methods to read out capacitive sensors for distance measurement used by a position control system having a high accuracy and low noise have been disclosed. The ratio or difference of the capacitances of two sensor capacitors is used to determine the distanc... | 04/22/2010 |
| 20100097014 | Control of a linear motor A linear electric motor has a fixed primary comprising a stator that is divided into a number of sections, a translating secondary that has an operative length that is longer than any two adjacent sections of the stator in the form of a reaction plate, and a connecting ... | 04/22/2010 |
| 20100072924 | METHOD FOR CONTROLLING AC LINEAR MOTORS, DEVICE FOR DRIVING AC LINEAR MOTORS, AND SYSTEM OF AC LINEAR MOTORS Provided is a method for controlling a plurality of AC linear motors of identical specifications which are connected each other and operated synchronously so that they appear to operate as a single linear motor having desired power. The met... | 03/25/2010 |
| 20100066276 | Method For Absorbing The Displacement Of A Plunger In A Linear Electrodynamic Motor Under The Influence of An External Force The invention relates to a method for absorbing the displacement, under the influence of an external force, of at least one plunger (10,20) in a linear electrodynamic motor comprising a least an induction coil (11, 21) magnetically coupled with the plunger... | 03/18/2010 |
| 20100044144 | Circular-Shaped Linear Synchronous Motor, Electromagnetic Suspension and Motor-Driven Steering Device Using the Same Disclosed are a high-damping and high-thrust cylindrical linear motor and a motor-driven power steering device. A stator includes three-phase stator and a stator core. A slider includes a slider core and permanent magnets. The stator core includes stator-core salient po... | 02/25/2010 |
| 20100001667 | CONTROL CIRCUIT OF A FULL-BRIDGE STAGE A control circuit for a full-bridge-stage to drive an electric load includes PWM generation circuitry for generating first and second PWM signals so that a difference between duty-cycles of the PWM signals represents an amplitude of a drive current. A logic XOR gate is ... | 01/07/2010 |
| 20090302786 | LINEAR STEPPING MOTOR A linear motor includes a stator having teeth symmetrically formed on upper and lower surfaces thereof at regular pitch; a movable member including upper cores disposed above the stator, lower cores disposed below the stator in symmetrical with the upper cores, and yoke... | 12/10/2009 |
| 20090243402 | POSITION MEASUREMENT USING MAGNETIC FIELDS A position sensing system for positioning a linear motor that includes a stator and an armature having magnets, the armature moving relative to the stator along a path. A sensor determines a position of the armature based on measurements of a magnetic field generated by... | 10/01/2009 |
| 20090218963 | Linear motor automatic control circuit assembly for controlling the operation of a 3-phase linear motor-driven submersible oil pump of an artificial oil lift system Connected to a 3-phase linear motor of a submersible oil pump of a crude oil production system, a linear motor automatic control circuit assembly is disclosed to include a linear motor power supply circuit, a CPU, an insulated gate bipolar transistor driving circuit, a ... | 09/03/2009 |
| 20090218964 | DRIVING APPARATUS, INDUSTRIAL INSTRUMENT, EXPOSURE APPARATUS, AND DEVICE MANUFACTURING METHOD A driving apparatus which electrically drives a component built in an industrial instrument, comprises a housing including a supply inlet and an exhaust outlet, a fan configured to form an air current so that air is taken into the housing through the supply inlet and ex... | 09/03/2009 |
| 20090195195 | Position Feedback Device for a Linear Motor A position feedback device for a linear motor comprises three linearly-arranged Hall sensors. The three Hall sensors are connected to a mover, respectively. The direction in which the Hall sensor in the middle of the three Hall sensors is reverse to the direction in whi... | 08/06/2009 |
| 20090160372 | DRIVING DEVICE In order to provide a driving device that is capable of eliminating sticking of a movable member due to nonuse, the driving device includes a drive shaft that reciprocates in axial directions with expansion and contraction of an electromechanical transducer element, a m... | 06/25/2009 |
| 20090115357 | Detection and Delimitation of Maximum Stator Currents A device for driving a magnetic levitation train has at least one controllable power supply unit that feeds at least one multi-phase power supply line, and a long stator with stator windings that extend in switching sections of the long stator. Each switching section ca... | 05/07/2009 |
