|
Match
|
Document |
Document Title |
|
|
7586304 |
Stator position measuring method and measuring device
A stator position measuring method and device relating to a motor driving device including a motor case, a rotor, and a stator disposed on an outer periphery of the rotor concentrically with the...
|
|
|
7386364 |
Operation control device for leg-type mobile robot and operation control method, and robot device
A legged mobile robot gives up a normal walking motion and starts a tumbling motion when an excessively high external force or external moment is applied thereto and a behavior plan of a foot part...
|
|
|
7372223 |
Electric drive control apparatus and method
An electric drive apparatus has an electric motor having a rotor and a stator; and a magnetic pole position detecting portion having a sensor rotor attached to the rotor, and a sensor stator that...
|
|
|
7319303 |
Method and apparatus for estimating the position of a moving part of a linear actuator
A method and an apparatus for estimating the position of a moving part of a linear actuator are provided. The method comprises the following steps. Move the moving part towards a target position....
|
|
|
7274166 |
Apparatus and method for correcting position of mobile robot
An apparatus and a method for correcting a position of a mobile robot includes a position notifying unit, installed at a predetermined position, that generates and transmits a signal indicative of...
|
|
|
7176677 |
Stationary position detection circuit and motor drive circuit
A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an...
|
|
|
7138782 |
Motor control system and method of the same
The present invention provides a motor control system and method thereof. The motor control system comprises a motor controller and a compensation device. The motor controller is used for...
|
|
|
7138783 |
Actuator with control unit and method for operating said actuator
The actuator and the method for operating the actuator comprise a drive unit and a drive mechanism with mechanical components that can be moved against each other as well as an electronic control...
|
|
|
7129665 |
Control apparatus for feed driving system
A control apparatus for a machine that can be operated at high precision in a stable control state is provided by driving a movable body with control parameters suited to the mechanical state. A...
|
|
|
7119536 |
Two-resolver deviation angle detector having serially connected output windings
A deviation angle detector enlarges the application range by enlarging the detectable deviation angle range. The deviation angle detector has two resolvers, which have rotors, stators, and single...
|
|
|
7038407 |
Circuit arrangement and method for operation of an electric motor in a DC supply network
The invention relates to a circuit arrangement and a method for operating an electric motor in a direct voltage source, in particular for operating a permanent-magnet-excited DC motor in the direct...
|
|
|
7009385 |
Flux compensated rotational position detector and operating methods therefor
A flux compensated rotational position detector includes a rotating element having a plurality of magnetic poles extending over its entire periphery, and a fixed element having a plurality of...
|
|
|
6977594 |
Inductive position detector
Inductive position detector ( 10 ) is described which includes scale ( 20 ) having a longitudinal axis containing a train of magnetic balls ( 22 ), and a transducer ( 30 ) moveable relative to the...
|
|
|
6803738 |
Magnetic actuation and positioning
Magnetic forces are used as a controlled actuation mechanism to move and position objects of interest. In one embodiment, a first spherical surface has at least one magnetic positioner attached. A...
|
|
|
6424148 |
Apparatus and method for sensing and magnetically communicating physical parameters of rotating shaft
A system and method for connectionless sensing of the physical parameters of a shaft that is capable of continuous rotation. The system involving placing a circuit assembly on the rotating shaft,...
|
|
|
6377005 |
Drive device having an actuating drive
A drive device, in particular a locking device, having an actuating drive for driving a moving element as well as a position detection device for detecting the position of the moving element, in...
|
|
|
6377016 |
Handlebar accelerator for an electrical bicycle
A handlebar accelerator for an electric bicycle has a bar, a tubular grip, and a joint. The grip has a ring formed at a first end thereof, a sector notch defined in the ring, and two magnetic...
|
|
|
6246228 |
Non-contact linear actuator position sensor having a pid-compensating controller
A position sensor or controller generates a response signal in existing armature windings of an actuator and detects the response signal to determine the position of the armature. To generate the...
|
|
|
6163125 |
Drive device for a movable part that can be displaced between end positions in a vehicle and method for the production thereof
An electric motor for moving or adjusting parts of vehicles such as windshield wipers and sunroofs have switching devices for shutting of the electric motor in at least one predetermined position...
|
|
|
6114820 |
Power window apparatus having safety unit
A power window apparatus is provided for detecting pinching in accordance with the opened/closed position of the window and a state of rotation of a motor, the apparatus having a position sensor...
|
|
|
6094255 |
Projection exposure apparatus and method that floats a plate
A projection exposure apparatus controls the position of a mask so that the mask is in a desired position without reducing throughput even if the size of the mask is increased. For example, a...
|
|
|
6091220 |
Device for detecting rotor speed or position in a continuously excited electric motor
In an electric motor, a Hall sensor (3) is arranged in the vicinity of the outer circumference of the rotor (2) and of at least one of the permanent magnets (4-7) provided for operationally...
|
|
|
5929588 |
Electric motor control system for automobile wiper assembly
An electric motor control system for a motor vehicle rear wiper assembly that provides OEM custom wiper features such as programmable wiper angle, speed and parking capabilities. The system...
|
|
|
5892339 |
Three-phase brushless DC motor driving circuits and methods using one hall signal
A three-phase brushless dc motor driving circuit can use only one Hall signal. The magnitude and phase of the Hall signal is used for commutation in order to perform soft switching, and an index...
|
|
|
5886517 |
Displacement pick-up for detecting of actuator with two indexing wheels
In a displacement pick-up for detecting the displacement of an actuator driven by a rotating drive element, which has an indexing mechanism (11) with a first indexing wheel (13), driven by the...
|
|
|
5796232 |
Circuit configuration for the evaluation of sensor signals of inductive sensors in motor vehicles
A circuit configuration for the evaluation of inductive sensor signals in motor vehicles is described. An input stage comprising an input circuit and a reference circuit and a threshold value stage...
|
|
|
5787915 |
Servo positioning system
A valve positioning system according to the present invention includes a force motor which responds to a command signal corresponding to a desired valve flow rate by energizing magnetic coils with...
|
|
|
5712563 |
Steering torque sensor utilizing a displacement detector having a pulse power supply
A displacement detector for enabling a precise detection of a displaced quantity of the core. The displacement detector is provided with a displaceable core, a detecting coil the inductance of...
|
|
|
5710496 |
Drive including PID position feedback drive and control system fed by speed control unit and X-ray device comprising such a drive
A motor drive having a very large dynamic speed range comprises a PID position feedback control system (8) in which the motor position is readjusted on the basis of the difference between the...
|
|
|
5691638 |
Apparatus for obtaining 3-phase position detecting signals by using a single position detecting element
At the periphery of a rotating disk (15) rotating in synchronization with an electric motor, first, second, and third sections (11a, 12a, . . . ) with different physical properties are disposed in...
|
|
|
5659230 |
Brushless motor drive circuit
A brushless motor drive circuit which can suppress switching pulses without using capacitors or other external components is provided. The brushless motor drive circuit has a hall element for...
|
|
|
5621293 |
Variable-reluctance servocontrolled linear motor
The variable-reluctance servocontrolled linear motor comprises an electromagnet formed by a shell and by a winding around a displacement path, a magnetic portion mobile in the direction of...
|
|
|
5574556 |
Stage mechanism in exposure apparatus
A stage mechanism suitable used in an exposure apparatus is disclosed, wherein heat generation of a coil assembly of a stage driving motor is prevented from adversely affecting a semiconductor...
|
|
|
5477116 |
Golf car having modular accelerator pedal assembly with non-contacting position sensor
An automobile is provided with a speed control system operably connected to a drive system of the automobile. The speed control system includes an accelerator pedal assembly having an accelerator...
|
|
|
5465757 |
Electro-hydraulic fluid metering and control device
An electro-hydraulic fluid metering and control device with a position sensor having a plane of geometric symmetry. The control device includes a valve body with a plurality of ports and channels...
|
|
|
5453684 |
Position detecting method for use in optical system of a video camera for correcting gain and offset for periodic waveforms
A position detecting method for detecting a position of a moving object such as a bearing or a lens by capturing a plurality of repetitive periodic waveforms coming from a position sensor and...
|
|
|
5444368 |
Differential reactance permanent magnet position transducer
A differential reactance permanent magnet transducer has a stator with at least two pole elements, each having an electrically conductive coil wound thereabout. The reluctances of the stator pole...
|
|
|
5434602 |
Recording apparatus with magnetic linear encoder
A recording apparatus, which is provided with a carriage supporting a recording head or reciprocating along a platen, includes a magnetized scale of a magnetic linear encoder positioned along a...
|
|
|
5399952 |
Electromagnetic drive system with integral position detector
An electromagnetic drive system includes a motor having a first motor section movable relative to a second motor section along a motion axis. The second motor section has three excitation coils....
|
|
|
5327060 |
Positioning device using Lorentz forces
A positioning device includes a table (5, 69), which is displaceable in two coordinate directions (X, Y) by means of Lorentz forces of electric linear motors over a base (3) and is guided over the...
|
|
|
5264772 |
Numerically controlled load actuating apparatus
The object of the present invention is to obtain an apparatus for realizing a high-speed numerical control of a load with good efficiency. Required numerical control of a load is carried out in...
|
|
|
5194795 |
Drive system and a control unit therefor
A drive system capable of driving a driven member with a large force and precisely rapidly positioning the same is disclosed, with use of a control unit for efficiently driving a motor with a large...
|
|
|
5164720 |
Interface circuits for electromagnetic position transducers
Interface circuits for electromagnetic position transducers are provided to reduce the effects of capacitive coupling occurring in the conductive cabling between the position transducers and the...
|
|
|
5153494 |
Ultrafast electro-dynamic X, Y and Theta Positioning Stage
The invention discloses an Ultrafast Electro-Dynamic X, Y and Theta Positioning Stage. A positioning stage made according to this invention allows light payloads to be moved with extremely high...
|
|
|
5115192 |
Magnetic displacement transducer with saturation compensation
A displacement transducer suitable for use in a magnetic bearing measures the flux density between a pair of components and divides a signal indicative of the magnetomotive force between the...
|
|
|
5087866 |
Temperature compensating circuit for LVDT and control system
A linear variable displacement transducer (LVDT) has a core connected to an actuator such as a torque motor. The outputs of the LVDT are demodulated and subtracted to provide a displacement signal...
|
|
|
5030900 |
Spindle orientation control apparatus
A spindle orientation control apparatus according to the invention provides a spindle (4) for which a magnetic sensor senses the spindle and outputs stopping-position proximity (LS) signal and a...
|
|
|
5004981 |
Detector device for simultaneously detecting both the direction and number of rotations of rotating member
A sensor for detecting a number of revolutions of a rotary shaft is provided which comprises a ring magnet secured to the outer peripheral surface of the rotary shaft, the number of revolutions of...
|
|
|
4986124 |
Screened inductance sensors, especially sensors for level measurement
In a screened inductance sensor having a drive winding, a sense winding, and a conductive screen for varying the induced voltage in the sense winding by reason of the eddy currents generated in the...
|
|
|
4963808 |
Motor control apparatus
A motor control apparatus disclosed in this invention counts output signals from an encoder upon rotation of a rotor, and performs energization switching of a motor coil when the count value has...
|