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7602128 |
Device and method to configure same
A motor controller for controlling an electric motor including a soft starter and a human-machine interface for control and configuration of the soft starter. The soft starter includes a visual...
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7589487 |
Method of selectable simultaneous/sequential motor drive in a multiple drive circuit including failure detection
A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the...
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7538501 |
Power system comprising several synchronous machines synchronously self-controlled by a converter and control method for such a system
A power system including at least two self-controlled synchronous machines operating in parallel synchronously, a central three-phase converter to which all these machines are connected in...
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7352141 |
Device and method to monitor an apparatus
An apparatus for monitoring and control of one or more electric motors, including a motor controller, equipped with a soft starter. The soft starter includes memory for storing operations and event...
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7276865 |
Power output apparatus, motor driving method and computer-readable recording medium having program recorded thereon for allowing computer to execute motor drive control
A power output apparatus includes two motor generators, a DC power supply, a relay, three inverters and a control CPU. One of the motor generators includes three-phase coils. The DC power supply is...
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7221115 |
Method and apparatus for controlling multiplexed motors
A control for stopping the rotation of the output shafts of a plurality of multiplexed motors configured in columns and rows with the first connector of each motor in a given column connected in...
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7180261 |
Self-synchronous AC servo system for high-speed serial communication
A self-synchronous AC servo system is used for high-speed serial communication and has multiple axes control. The system includes a computer sending command to master axis drive and slave axis...
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7164253 |
Motor drive control apparatus
On end of a reactor (L 1 ) is connected to a positive electrode of a battery (B 1 ) and the other end is connected to a power line via a transistor (Q 1 ) and to the ground via a transistor (Q 2 )....
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7038421 |
Method and system for multiple servo motor control
A system for control of a plurality of motors comprising: an inverter including at least three legs, with each leg including two series switching devices configured to receive a command from a...
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7026778 |
Numerical controller
A data table stored in a numerical controller associates motors controlled by the numerical controller with information from sensors used by the motors. When the numerical controller is turned on,...
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7023169 |
Method for changing speed of motor group
A method for changing the speed of a motor group, in particular for starting or stopping it, the motor group comprising a plurality of squirrel-cage induction motors or synchronous motors and...
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6933698 |
Method of driving a servo motor with a built-in drive circuit
Disclosed is a method of driving a servo motor with a built-in drive circuit in which a common rectifying circuit is provided on a distribution board to which a plurality of the servo motors with...
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6856106 |
H-bridge apparatus and method
An apparatus has a first H-bridge having a first motor contact on a shared first side and a second motor contact on a second side. The apparatus also has a half H-bridge having a third motor...
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6841955 |
Moving body drive control device
A moving body drive control device characterized by mutually balancing a magnitude of driving force TK and a magnitude of braking force TB, both of the forces being generated by a motor, to...
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6815915 |
Device system for multiple motors
A device for supplying energy by means of a first DC voltage source e.g. in the form of a DC voltage bus, a drive system comprising several electric motors is connected to said DC voltage bus. The...
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6812657 |
Motor control for two motors
A load in an electrical apparatus is driven by two motors M 1 , M 2 . Switching means (R 1 , R 2 ) switches the motors M 1 , M 2 between: a series configuration, in which the motors M 1 , M 2 are...
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6680590 |
Vibration motor and apparatus using the same
A vibration motor obtains a FAST signal when r.p.m. of the motor is faster than reference speed, whereby an output-driving circuit is controlled by the FAST signal to omit parts of the powering...
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6653810 |
Motor control system
A motor controller circuit for controlling an electric motor in response to motor commands from a host controller. The controller circuit includes a motor driver circuit for providing motor driver...
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6583591 |
Circuit for operating a plurality of bi-directional motors
The present invention provides a circuit for operating a plurality of bi-directional motors, each motor having a pair of terminals disposed across the motor. The circuit includes a common half...
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6577095 |
Brushless alternating current electric servo motor drive
AC servo motor drives which allow several AC drives to be connected in parallel and allow for the connection and reconnection of AC servo motors to be accomplished primarily through a central...
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6404150 |
Accessory motor drive power supply system for an electric vehicle
An electric vehicle accessory motor drive power supply system ( 40 ) that utilizes a single power supply design to provide efficient variable speed motor control to both brushless and brush-type DC...
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6385522 |
Brake control apparatus and method
Brake control apparatus and includes an electric motor arranged to drive a wheel and a brake operable to apply a braking force to inhibit the rotation of the wheel. An input signal indicative of a...
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6373204 |
Apparatus and method for driving a plurality of induction motors
A motor controller includes: a driver stage operable to provide voltage and current to a plurality of induction motors over a single power bus; and a control unit operable to monitor the current...
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6344719 |
Motor driving apparatus for controlling plurality of motors with less motor driving units than motors
The motor driving apparatus comprises a plurality of motors for displacing the position of the control object member, semiconductor switch pairs, a plurality of motor driving units for connecting...
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6281645 |
Motor control system and image forming apparatus using the same
A motor control system includes a processor having a clock output terminal for outputting clock pulses in desired cycles, a plurality of motors, and a plurality of motor drivers which are provided...
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6246192 |
Electronic drive system
In an electrical drive system an increased electromagnetic compatibility is achieved by used of AC rotating motors having no commutator and no slip rings as driving motors, whereby a simplified...
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6121735 |
Actuator with start-stop operation
The present invention relates to an electronically adjustable actuator for actuating a plurality of actuating elements, such as valves. A control unit is provided for generating actuating signals...
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6028404 |
Motor drive circuit system utilizing multiple DC power driving devices switchable between parallel, and series/parallel combinations
At least two components that use DC power to drive at least two motors, such as DC armatures, field windings, etc., collectively referred to as DC driving devices, are connected together by...
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6008597 |
DC-motor driven vending machine having simplified controls
A simplified wiring system for an electronically controlled vending machine of the type capable of vending multiple products out of columns, trays or other queuing means, wherein by employing DC...
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5898280 |
DC shunt (or compound) motor pair capable of synchronous operation
A pair of DC motors, each having a shunt-connected field winding, are interconnected such that current supplied to the shunt field winding of one of the motors is proportional to the armature...
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5877605 |
Servo device having plural servo systems
A servo device which simultaneously controls plural servo systems, using a digital signal processor (DSP). The servo device includes plural servo systems, plural control subjects, and plural...
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5796220 |
Synchronous drive system for automated textile drafting system
An automated drafting system particularly suitable for drafting textile strands of sliver is provided. The automated drafting system includes a synchronous drive sliver drafting roller system...
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5764006 |
Motor driving circuit and method for driving two motors
A film driving circuit that is capable of normal driving and reverse driving to drive-control a first motor and a second motor each rotating in only one direction. The motor driving circuit is...
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5757147 |
Method and apparatus for controlling multiple motor drive of printing machine
A method and apparatus for controlling a multiple motor drive arranged to drive printing cylinders of a printing machine sychronously decelerates each of the drives upon a failure or defect...
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5739648 |
Motor controller for application in a motor controller network
A motor controller that incorporates all of the advantages of RS-485, yet allows the user to interface with the controller through RS-232 without a separate RS-232 to RS-485 converter. The...
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5714852 |
Three state switch detection using current sensing
A three state switch detection circuit converts a three state input to a two-bit binary output readable by a micro-controller or other digital logic. The circuit utilized complementary NPN and PNP...
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5712541 |
Method and apparatus for actuating synchronous motors
The invention concerns a method and an apparatus for actuating a plurality of synchronous motors which are connected to a common power supply and which are respectively used for displacing an...
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5672943 |
Electronic control apparatus
Electronic control apparatus of a kind used in low voltage industrial equipment such as assemblies of motors or circuit breakers. Where an overall controller, e.g. a programmable logic controller...
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5670851 |
Power conversion control system for plural electric motors and auxiliary circuit
An electric vehicle control system for controlling a plurality of main motors for driving an electric vehicle and an auxiliary circuit. The control system includes a first circuit breaker, and a...
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5667141 |
High pressure cleaning means
A high pressure cleaning means is described with a preferably portable housing having a high pressure pump (6) and an electric motor drive (7) for the high pressure pump (6), the motor drive having...
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5629591 |
High-availability multicurrent power supply system for the traction unit of a railway locomotive
A system for powering a multicurrent locomotive having 2N motors where N is greater than or equal to 2, the system comprising 2N pairs of voltage converters respectively associated with the 2N...
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5534758 |
Optical disk drive circuit and optical disk drive device using the same
The present invention resides in that two of three drivers are BTL-operated in pair to drive the motor for driving the tray and one of the two drivers and a remaining one driver are BTL-operated in...
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5532560 |
Photosensitive automatic blind controller
There is disclosed a photosensitive automatic controller for use with window coverings in particular for use with venetian blinds. The controller includes a reversible motor, a drive circuit, a...
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5421399 |
Cool/heat pump control circuit for a room air conditioner
A control circuit for a cool/heat pump in which two separate motors are utilized, each with a main winding and an auxiliary winding. A single dual rated capacitor is provided in series with both...
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5384520 |
Balanced drive motors with cross-coupled excitation
Balanced-drive multiple motors each including an armature rotatably actuated by a field winding. Cross-coupled series excitation of the field windings is accomplished by electrically connecting the...
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5381065 |
Vehicle window and lock securement
A control circuit for controlling a vehicle window closing and door locking device, comprises a first circuit having three X-OR gates and one AND gate for determining the vehicle general...
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5361565 |
Elevating system
An elevating system especially designed for raising and lowering battens used in stages. The elevating system preferably uses two or more winch assemblies with synchronous motors coupled together...
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5315218 |
Motor controls
An electrically actuated shifting mechanism includes a reversible rail select electric motor and a reversible in-gear electric motor. Three groups of switches are provided to effect one-at-a-time...
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5278477 |
Drive system for a printing machine with several printing units
A drive system for a printing machine with a plurality of printing units connected to one another via a gear train into which power is fed at different points by at least two motors, includes...
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5204591 |
Device for controlling at least one electronic servomotor with high power from a low-voltage network, in particular for motorizing a turret on a tank
Device for controlling at least one electric servomotor with high power from a low-voltage network, in particular for motorizing a turret on a tank, characterized in that it comprises, in...
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