|
Match
|
Document |
Document Title |
|
|
7622833 |
Machine, in particular production machine, machine tool and/or robot
A production machine includes an electrical positioning drive having a stator and a moveable member displaceable relative to the stator in at least one travel direction. The moveable member is...
|
|
|
7619377 |
Linear motor system
A linear motor system that can extend the stroke of a linear motor, with power saving and at a low cost, is provided. In a linear motor system, constituted by a linear motor 100 , a controller 7...
|
|
|
7615894 |
Electric motor with a permanent magnet carrier rotating a sprocket
A high voltage, low current electric motor. The motor comprises a drive shaft turned by a sprocket that is driven by an assembly of electromagnets. A carrier supporting permanent magnets travels in...
|
|
|
7598688 |
Tilting device
A flat surface tilting device including a selectably positionable flat surface element assembly defining a flat surface element having a flat surface and a pivot location portion, the pivot...
|
|
|
7597531 |
Method of controlling mover device
Embodiments of the invention are directed to a method of controlling a mover device The method includes generating a moving force from a moving force generating unit to move a processing base with...
|
|
|
7592760 |
Lithographic apparatus and device manufacturing method
A positioning device configured to position a first and a second movable object in a substantially common operation area is presented. The positioning device includes a first coil assembly arranged...
|
|
|
7589482 |
Hot spot sensoring control of linear motors
A system implementing a controller for linear motors is disclosed having a plurality of switches, a reorganization switch control detecting available hot spot sensors, encoder failures, and current...
|
|
|
7579793 |
System and method for efficient wide dynamic range coil drive
Methods and systems are provided for driving one or more force coils. A system for driving force coils is provided including a PWM drive coupled to a first coil and a linear drive coupled to a...
|
|
|
7557525 |
Dual swing gate control system
A control system and method for ensuring proper closure of a dual swing gate. The control system employs position sensors for monitoring the position of each gate arm. A “differential position”...
|
|
|
7554277 |
Circuit device for increasing the useable motor voltage in a long stator drive and method for operating a magnetically levitated vehicle provided with said type of circuit device
A circuit device is disclosed which is used to increase useable motor voltage in a long stator drive. Further, suitable methods for operating a magnetically levitated vehicle provided with the...
|
|
|
7537091 |
Magnetic elevator door mover
An elevator door mover device ( 40 ) includes a threaded ferromagnetic shaft ( 42 ). Magnetic movers ( 48 ) associated with doors ( 26 ) generate magnetic fields that cause the doors to move...
|
|
|
7535193 |
Five axis compensated rotating stage
A rotating stage assembly performs high precision rotational angle and position error correction by continuous sensing and correcting motor stage assembly errors. It performs these corrections, to...
|
|
|
7535187 |
Linear traversing carriage incorporating an air gap inductive motivator
The present invention relates to a linear traversing carriage for use in the papermaking industry and the like, which incorporates an air gap inductive motivator and eliminates all mechanical...
|
|
|
7528561 |
Linear drive apparatus
A linear drive apparatus comprising: a guide having an internal body; a slider moved along the guide, a driving mechanism for generating a driving force by magnetic interaction of the slider with...
|
|
|
7528560 |
Driving controlling apparatus of linear compressor and method thereof
A driving controlling apparatus of a linear compressor and a method thereof are disclosed, in which a stroke is variably controlled at the time of a compression processing and a suction processing...
|
|
|
7504794 |
Planar motor
A common electrode plate formed on a common electrode base attached to the lower surface of the movable stage faces a split electrode plate formed on a split electrode base attached to the upper...
|
|
|
7504785 |
System for controlling an electrostatic stepper motor
A system to control the fixed mass/spring mechanical resonance of the motor in conjunction with a model of the motor that estimates the present position and allows the determination of the motor...
|
|
|
7492117 |
Electromagnetic variable degrees of freedom actuator systems and methods
The present invention provides a variable reluctance actuator system and method that can be adapted for simultaneous rotation and translation of a moving element by applying a normal-direction...
|
|
|
7489054 |
Planar direct drive unit comprising a position measuring system
The invention relates to a planar direct drive unit comprising a passive unit ( 1 ), an active unit ( 3 ), a bearing unit, and a position measuring system that is provided with a material measure...
|
|
|
7482717 |
Servo actuator with self positioning rotor and method
A linear actuator is provided with an integral permanent magnet, brushless motor capable of axial, self adjustment of the rotor position within the stator for field weakening. Axial displacement of...
|
|
|
7478706 |
Method and apparatus of operating a drive with linear motor
A drive, a method of operating the drive and an elevator operated by the drive for the movement of persons or goods by at least one car utilize a linear motor. The drive includes at least one...
|
|
|
7478539 |
Two-stage linear compressor
A refrigeration system includes a two-stage linear compressor having a first piston disposed in a first cylinder and a second piston disposed in a second cylinder. The linear compressor is operable...
|
|
|
7477026 |
Power steering assembly
The invention provides for a power steering assembly and method of actuation for assisting a driver in moving the steerable wheels of a vehicle. The power steering assembly includes a housing that...
|
|
|
7474065 |
Controlling an electric motor having multiple oscillatory elements
A method of controlling an electric motor includes providing an electric motor having a plurality of magnetically driven oscillatory elements having differing oscillatory characteristics, and an...
|
|
|
7468589 |
Lithographic apparatus having a controlled motor, and motor control system and method
A lithographic apparatus includes an illumination system to condition a radiation beam. A patterning support holds a patterning device that imparts the radiation beam with a pattern to form a...
|
|
|
7468588 |
Apparatus and method for controlling operation of reciprocating compressor
The present invention relates to an apparatus and method for controlling operation of a reciprocating compressor. The operating efficiency of the compressor can be improved by performing the steps...
|
|
|
7459868 |
Apparatus for controlling operation of reciprocating compressor and method thereof
An apparatus and method are disclosed to control an operation of a reciprocating compressor capable of precisely controlling an operation (stroke) of a reciprocating compressor regardless of a...
|
|
|
7456593 |
Direct drive transport system
A system, method and apparatus for controlling a linear stage a pallet is described herein. In one aspect, a conveyor system includes a conveyor pallet that includes a first mobile magnetic...
|
|
|
7456529 |
Wireless encoder
A wireless encoder system facilitates operation and control of a motor, such as linear motor. The system includes an encoder sensor moveable with a first part of the motor. The encoder sensor is...
|
|
|
7453228 |
Method for controlling a positioning device, positioning device, and lithographic apparatus provided with a positioning device
In a method for controlling a positioning device, the positioning device has a stator and mover, the mover being movable relative to the stator; a position sensor configured to generate a position...
|
|
|
7439693 |
Anomaly detection method and motor control device
A control unit of a motor driver performs feedback control to supply current to a linear motor based on a detection value of a linear encoder. An anomaly detection unit monitors the supply current...
|
|
|
7439692 |
Linear compressor and apparatus to control the same
A linear compressor and apparatus to control the linear compressor are provided which allows a frequency of a drive current supplied to a drive motor to synchronize with a resonance frequency...
|
|
|
7436135 |
Method for controlling stage apparatus
At least one exemplary embodiment is directed to a control method for controlling a stage apparatus including a base and a stage, the base including first and second coil phases, the stage...
|
|
|
7432791 |
Magnet arrangement for carrying, guiding and/or braking systems in magnetic levitation vehicles
A magnet arrangement ( 1 ) for magnetic levitation vehicles is described that is comprised of an electromagnet having a plurality of magnet poles, said magnet poles having cores connected via pole...
|
|
|
7429839 |
Linear compressor and control method thereof
A linear compressor having a reciprocating piston, a linear motor driving the piston, and a motor controller to vary magnitude of a stroke of the piston according to power, including: a...
|
|
|
7423392 |
Speed control for an electric linear actuator such as a trailer jack and the like
A trailer jack system includes an electric linear actuator having an electric motor, a source of electric power, and a controller that supplies a first voltage to the electric motor when the...
|
|
|
7405525 |
Method for the control of an electric machine and/or device for the control thereof
The invention relates to a method for the control of an electric machine ( 5 ), wherein a control unit ( 1 ) comprises a parameterisable speed control ( 26 ) and a parameterisable additional...
|
|
|
7402966 |
Linear drive with travel measurement
The invention concerns a linear drive ( 1 ) with a linear stroke for the displacement of movably supported parts, in particular of articles of furniture, comprising a rotary spindle ( 2 ) which is...
|
|
|
7391496 |
Exposure apparatus
An exposure apparatus which exposes a substrate to a pattern. The apparatus includes a channel which causes pure water to flow as a coolant, a temperature adjustment unit which adjusts a...
|
|
|
7388338 |
Device for braking a magnetic levitation railway
A device is for braking a magnetic levitation railway, wherein the stator winding of a linear motor is short-circuited as a brake winding in a last section before an end of the route. There is a...
|
|
|
7385363 |
Linear motor having progressive movement control
In a linear motor and its progressive motion or motion control, e.g., for modular transport devices with straight and curved route sections forming a route course, extensive modularity or...
|
|
|
7385362 |
Method for driving a vibrating device for a portable object that comprises a coil and a moving mass
The drive method consists in setting in vibration a moving mass of a vibrating device for a portable object using a series of voltage pulses provided to the coil of the vibrating device, which is...
|
|
|
7385318 |
Positioning system, magnetic bearing, and method of controlling the same
A stage system and a control method therefor. In one aspect, the stage system includes a stage which is going to be positioned, a magnetic material member provided on the stage, electromagnets...
|
|
|
7383929 |
Anti-vibration technique
An anti-vibration apparatus includes a first magnet unit arranged on a support target and including a first permanent magnet, and a second magnet unit including a pair of second permanent magnets....
|
|
|
7382440 |
Lithographic apparatus and device manufacturing method
A transporter is provided for moving a substrate and a patterning device relative to one another in a lithographic apparatus. The transporter includes a beam, a driver, and a slide. The slide is...
|
|
|
7378809 |
Controller for controlling an electric machine
A controller for an electric machine, in particular for a linear motor, is disclosed. The electric machine or linear motor includes a first machine section with windings and a second machine...
|
|
|
7378765 |
Cylinder-type linear motor and moving part thereof
The present invention provides a cylinder-type linear motor. The motor includes a fixed part including a coil assembly having a plurality of ring-shaped coils arranged in the axial direction to...
|
|
|
7375479 |
Apparatus for processing an object with high position accurancy
A apparatus processes an object ( 19 ), such as a semi-conductor wafer at accurately controlled positions. The object ( 19 ) is supported by a working platform ( 12 ) that is moveable along a path....
|
|
|
7372221 |
Device for adjusting the armature stroke in a reversible linear drive unit
A device for adjusting the armature stroke in a reversible linear drive unit comprising an excitation coil and an armature displaceable in the magnetic field of the excitation coil according to a...
|
|
|
7369386 |
Overcurrent protection for solid state switching system
Current sensing resistors are connected directly to output terminals of MOSFETs forming the series switching stage of a PWM sinewave dimmer. An analog sensed current signal is coupled through an...
|