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Matches 351 - 400 out of 13,577

Document Document Title
WO/2009/138291A1
The invention relates to a diesel-electric drive system, comprising a generator (4) having two multi-phase winding systems (22, 24), a diesel engine (2), and an intermediate voltage circuit converter (6), the two self-commuted pulse powe...  
WO/2009/127772A1
The invention relates to an arrangement and a method for braking an elevator car (1) in an elevator system without counterweight. The arrangement comprises a controllable brake (2, 2') and also a control (3, 19, 24) fitted in connection ...  
WO/2009/128308A1
Provided are a device for controlling a pulse jet type dust collector, in which a blower motor can cool itself even if dust-collecting target facilities repeat runs and stops, and a method for controlling the pulse jet type dust collecto...  
WO/2009/127660A2
A drive circuit for a DC drive motor (1) of an actuator in a vehicle, in particular an actuator of a steering lock in which a gear component driven by the motor can move toward a mechanical end stop, comprising four circuit components (6...  
WO/2009/118433A1
The invention relates to wind turbines provided with doubly fed induction generators and with at least one power converter which is novel in that, under certain circumstances, it enables the turbine to operate as a full converter (FC) sy...  
WO/2009/061220A9
Provided is a method of operating a motor at a low speed. The method includes sensing an event corresponding to an angular position of the motor. If the event occurs between a first time threshold and a second time threshold, the method ...  
WO/2009/110321A1
Provided is a motor control circuit for controlling the energization of a coil on the basis of the detection result of the position of a rotor. The motor control circuit performs controls to make a stop for a short time by suppressing co...  
WO/2009/105276A1
A system for braking a motor. The system includes at least one resistor and a contactor connected to the at least one resistor and a motor. The system further includes a variable frequency drive electrically connected to the motor, where...  
WO/2009/105586A1
According to some embodiments disclosed herein, an energy recovery system can be characterized as including a conduit having a first end and a second end, wherein the first end of the conduit is configured to receive a gas flow transmitt...  
WO/2009/030584A3
Method for slowing-down control of an asynchronous machine (101), wherein the value of a start energy (Estart) is determined and stored while the asynchronous machine (101) is being run up from being stationary to the operating rotation ...  
WO/2009/103153A1
A battery powered raise climber system is provided that uses Lithium ion batteries to drive a single or double electric drive for an existing raise climber. The batteries offer a faster, safer, quieter and cleaner way to move workers and...  
WO/2009/104791A1
Provided is a motor controller which can suppress temperature rise of a three-phase motor by suppressing decrease in torque generated. Also provided is an electric brake booster. When an ECU determines that the temperature of a coil has ...  
WO/2008/046885A3
The invention relates to a method for controlling an electric motor by means of a softstarter. The present invention is also concerned with a softstarter device for control of electric motors. According to the invention, the motor torque...  
WO/2009/043556A3
A method for controlling a synchronous electric machine (2) comprising a stator and a rotor encompasses the following steps: the machine (2) is operated at a deceleration moment (MP) such that a rotor speed of the machine is reduced; the...  
WO/2009/080384A1
The invention relates to a method for actuating a DC machine by means of a standard controller and a safety arrangement, wherein the DC current is connected to a supply voltage by means of a main switch (HS) to be activated by a control ...  
WO/2009/074396A1
The invention relates to an industrial robot having a robotic arm. The robotic arm has several axes (A1-A6) and at least one electric drive, which comprises an electric motor (7-12) and power electronics (16) actuating the electric motor...  
WO/2009/061220A2
Provided is a method of operating a motor at a low speed. The method includes sensing an event corresponding to an angular position of the motor. If the event occurs between a first time threshold and a second time threshold, the method ...  
WO/2009/056018A1
An apparatus (10, 110, 510, 610) for controlling the starting and stopping of an AC induction motor comprises: a first magnetic permeable portion (20, 40, 120, 140, 520, 540, 620, 640) having first, second and third legs (21, 22, 23, 41,...  
WO/2008/138600A3
The invention relates a wind turbine comprising a rotor (12) provided with adjustable rotor blades (13) for driving a generator (14), an adjusting device (3) for the rotor blades (13) provided with an actuator (4) that comprises at least...  
WO/2007/139570A3
A trash can can include a sensor for detecting the presence of an object near a lower portion of the trash can. The detection of the object can be used to signal the trash can to open its lid. The trash can can include an electric drive ...  
WO/2006/031839A3
A multi-phase unipolar motor is configured such that each stator pole is formed with bifilar wound primary and inductively associated secondary windings corresponding with one phase. The primary winding at one stator pole corresponding w...  
WO/2009/047831A1
An electric vacuum cleaner which can detect the occurrence of a spark by an inexpensive structure and prevents smoking and ignition due to abnormal overheat in an end stage of life. The electric vacuum cleaner comprises a current detecti...  
WO/2009/043373A1
A drive unit for at least one electric motor, the drive unit comprising: a power source (1 ) producing direct current to the motor, an energy storage (C1 ) arranged at the output of the power source for storing energy recovered during br...  
WO/2009/037352A1
Electric braking system for a road vehicle of which at least one wheel is connected for the purposes of rotation to at least one rotary electrical machine, at least one wheel control electronic module 23 driving the electrical machine or...  
WO/2009/030584A2
Method for slowing-down control of an asynchronous machine (101), wherein the value of a start energy (Estart) is determined and stored while the asynchronous machine (101) is being run up from being stationary to the operating rotation ...  
WO/2009/025243A1
An electric power processing device is provided with an induction heating device (9) that is comprised of an induction heater driving inverter (16) with which an electric power source rectifying capacitor (2) connected in parallel with i...  
WO/2009/024168A1
An apparatus for monitoring an electromagnetic brake comprises a brake monitoring means (1) adapted for being coupled to an electric supply (6) for an electromagnetic brake having braking means and comprising an electrical coil (22) with...  
WO/2009/025060A1
An operation controller for electric equipment excellent in operability without enlarging a hand-operated switch box. The operation controller operates and stops the electric equipment (10) through control circuits (21,22) by switch oper...  
WO/2009/016267A1
The invention presents a control arrangement of an electric motor (2) used with a frequency converter (1 ) as well as a method for controlling an electric motor used with a frequency converter. In the invention the frequency converter is...  
WO/2009/013388A1
The invention relates to a switch arrangement of an electric motor drive (1 ). The electric motor drive comprises safety switches (3) determined by the safety of the drive, a controlled mechanical brake (4), a power supply circuit (5) of...  
WO/2008/148470A3
Disclosed is a circuit for operating a coil of an electrically liftable safety brake, to be connected to AC inputs having different (preferably single-phase) operating voltages. Said circuit comprises: a rectifier circuit which is connec...  
WO/2008/155445A1
The power control of a transport system comprises an electric motor (2) for moving the transport appliance as well as a power supply appliance (3) of the motor, which comprises an intermediate circuit (4,5). The power supply appliance of...  
WO/2008/155446A1
The power control of a transport system comprises an electric motor for moving the transport appliance as well as a power supply appliance of the motor, which comprises an intermediate circuit. The power supply appliance of the motor is ...  
WO/2008/148470A2
Disclosed is a circuit for operating a coil of an electrically liftable safety brake, to be connected to AC inputs having different (preferably single-phase) operating voltages. Said circuit comprises: a rectifier circuit which is connec...  
WO/2008/146372A1
A vehicle steering gear has a steering mechanism for steering steered wheels by a steering wheel operated by the driver and a sub steering angle superimposition mechanism controllable electrically. A target sub steering angle is set acco...  
WO/2008/135327A1
The invention relates to a method for correcting errors in an electrical machine of a hybrid drive, comprising the following steps: detection of whether at least one operation parameter of the electrical machine exceeds an assigned opera...  
WO/2008/136836A2
A system and a method that provides fuel cell and energy storage hybrid-electric propulsion and control for a heavy-duty vehicle over 10,000 pounds GVWR. Power output is supplied from a fuel cell system to a high-power intermediate DC bu...  
WO/2008/130560A1
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 surrounded by a...  
WO/2008/027867A3
A solid state reversing DC motor starter that is testable on-line and satisfies the requirements for nuclear safety grade equipment. The motor starter employs a bridge of solid state switches which connect the polarity of the motor windi...  
WO/2008/122213A1
A control method and a control device of engines are introduced. During the process of engines controlling, the control unit does the adaptive learning for the actual target value of the feedback of different aims, and following the dyna...  
WO/2007/149360A3
A method and apparatus for an automated waste receptacle includes a waste flap, a motor positioned on a bottom side of the waste flap and an actuator located in proximity of the top side of the waste flap, wherein the actuator is configu...  
WO/2008/070730A3
A circuit for varying the speed of a variable speed motor having a power source to provide a voltage to the motor and a diode as a means to provide a voltage drop within the circuit that is substantially independent of the amount of curr...  
WO/2008/005363A3
A method and system for controlling a current regulator motor control for parking a motor rotor in a predetermined position, wherein a first current command and a first angle command are supplied to a current regulator for a first parkin...  
WO/2008/114026A1
A braking control system suitable for limiting or preventing rotation of a turbine of a wind powered generator, comprising sensing means, operable to sense the short circuit output current of the generator, wich is proportional to the st...  
WO/2008/114608A1
A hoist capable of high frequency operation by efficiently releasing heat of an inverter, which is incorporated in a hoist body, to ambient air by using a simple structure. The hoist has a load lifting and lowering electric motor and a r...  
WO/2008/109328A1
A single low side power transistor switch is used to efficiently control a brushed motor in a. forward rotational direction. A boost voltage power supply is used to supply voltage to the brushed motor in a reverse rotational direction or...  
WO/2008/017629A3
The invention relates to a diesel-electric drive system with a generator (4) that is mechanically connected to a diesel motor (2) on the rotor side and that is linked on the stator side to a voltage source inverter (34) with a self-commu...  
WO/2008/007120A3
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A s...  
WO/2008/091758A2
The present invention comprises a gear motor assembly and control system for use with ice crushers and the other similar devices. The assembly utilizes a novel reversing circuit which allows the use of a bidirectional DC powered gear mot...  
WO/2008/049958A3
The object of the invention is an arrangement in a synchronous machine, which synchronous machine contains n-phased winding (U,V,W) and has constantly operating magnetisation means. According to the invention, switching means have been f...  

Matches 351 - 400 out of 13,577