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Patent Searching and Data


Matches 501 - 550 out of 9,131

Document Document Title
WO/2002/051227A1
In a protection circuit for a plurality of fans, an element is associated with each fan. The impedance or the current value of the element indicates the operation condition of the fan. For example, the impedance or the current value may ...  
WO/2002/046002A2
The invention regards an electric circuit (200; 300;400;500) comprising a first electronic control circuit (201; 301) controlling the operation of a first electric load (102) to operate alternatively in a push mode or in a pull mode. To ...  
WO/2002/045245A2
The invention provides an XYZ-axes table with a linear motor. The XYZ-axes table has a base, a plurality of linear guiding apparatuses, a stage, an X-axis drive linear motor, a Y-axis drive linear motor, and a Z-axis drive linear motor. ...  
WO/2002/037665A1
A servocontrol system comprises command generator means (101) for generating a command signal to drive motors (M1-M4); an I/F unit (150) including a CPUa (160) for generating a signal to drive the motors (M1-M4) based on a signal from a ...  
WO/2002/037663A1
A servocontrol system comprises a drive unit (50) for driving a motor (61), the drive unit provided with a connection (52); a control unit (40) for giving a command to the drive unit (50) in response to a command from a host controller (...  
WO/2002/037646A1
A closed loop control system for a electromagnetic clutch or brake (312) has a motor to provide force, a transducer (304) to read the force and produce an error signal, and an amplifier (311) to compare the error signal to a reference si...  
WO/2002/033815A1
A method for controlling acceleration/deceleration of a motor for mechanical operation is characterized by comprising the steps of receiving command variables including at least one of the target position, speed, trace shape, acceleratio...  
WO2001022095A8
The invention relates to a method for regulating the rotational speed of a motor, to which a digital governor is assigned and which during operation generates an actual value signal for the rotational speed in the form of a rotational sp...  
WO2001045246A3
An apparatus for controlling the speed of a motor (having a coil) rotating a load synchronizes the rotational speed of the load with a reference signal. To that end, the apparatus includes a commutation circuit for energizing the coil, a...  
WO/2002/003526A2
A control for DC motors, in particular actuators driven by a DC motor for adjustment of furniture, such as tables, beds, chairs, etc. inlcudes a pseudomotor which is capable of supplying a voltage that corresponds to the motor speed on t...  
WO2001043271A3
The invention relates to electric drive motors (8) of at least two machines (2, 3, 4) whose drive motors operate with a periodic movement pattern. According to the inventive method, said periodic movement patterns are coordinated in such...  
WO2001043270A3
The invention relates to a drive system for driving a set of machines (2, 3, 4) that are each provided with a rectifier (6). According to the inventive drive system, the inputs (7) to the control devices (8) of the drive motors of the ma...  
WO2001065677A3
The invention concerns a device comprising at least a central unit (UC) connected to a network. The central unit sends operating instructions into an interactive unit (11) adapted to process tem and transmit them to a management and powe...  
WO/2001/080417A1
The invention relates to a method for position-controlled stopping of rotating components of shaftless drive mechanisms in the case of voltage loss, whereby the lacking process power arising from a lack of rotational power is supplied by...  
WO/2001/073939A1
A load in an electrical apparatus is driven by two motors M1, M2. Switching means (R1, R2) switches the motors M1, M2 between: a series configuration, in which the motors M1, M2 are connected in series across a power supply and driven wi...  
WO/2001/070165A1
The invention relates to an electromotive drive unit for at least one adjustable component. The inventive unit is provided with at least one drive motor that can be controlled by means of a control unit. The aim of the invention is to de...  
WO/2001/065677A2
The invention concerns a device comprising at least a central unit (UC) connected to a network. The central unit sends operating instructions into an interactive unit (11) adapted to process tem and transmit them to a management and powe...  
WO/2001/061837A1
The invention relates to a method for effecting the synchronous control of several stepping motors (SM¿1?, SM¿2?, SM¿n?) which serve as drives in a positioning system. According to the invention, different step lengths (SL¿1?, SL¿2?...  
WO/2001/050590A1
The invention relates to a vacuum dust remover with an electronic regulation of total capacity. The above regulates the capacity of at least one of at least two electrical users, such that the sum of the drawn capacities of all the conne...  
WO/2001/044032A1
A controller (100) for controlling an actuator (102) in response to an input signal (104). The controller (100) includes a first control block (106) and a second control block (108). The first control block (106) receives the input signa...  
WO/2001/045244A1
A combined drive circuit (102) for a split brake system of a motor vehicle has a switched reluctance motor and a brush motor. The switched reluctance motor has multiple phase windings. The combined drive circuit includes a DC power sourc...  
WO/2001/045246A2
An apparatus for controlling the speed of a motor (having a coil) rotating a load synchronizes the rotational speed of the load with a reference signal. To that end, the apparatus includes a commutation circuit for energizing the coil, a...  
WO/2001/045245A1
A method and device (100) for controlling an actuator (102) in response to an input signal (104) is provided. The device (100) detects actuator (102) position, calculates a force applied to the actuator as a function of the detected posi...  
WO/2001/045249A1
A combined drive circuit for a split brake system of a motor vehicle has a switched reluctance motor (104) and a brush motor (106). The switched reluctance motor (104) has multiple phase windings. The combined drive circuit includes a DC...  
WO/2001/043271A2
The invention relates to electric drive motors (8) of at least two machines (2, 3, 4) whose drive motors operate with a periodic movement pattern. According to the inventive method, said periodic movement patterns are coordinated in such...  
WO/2001/043270A2
The invention relates to a drive system for driving a set of machines (2, 3, 4) that are each provided with a rectifier (6). According to the inventive drive system, the inputs (7) to the control devices (8) of the drive motors of the ma...  
WO/2001/035520A1
Device and method for controlling supply of current and static capacitance to compressors, the device including a control signal providing part for providing control signals for controlling currents and static capacitances to be supplied...  
WO/2001/035522A1
A servo control system comprises serial transmitting means for serial-transmitting a command frame (100) from an upper-level controller (1) to a positioning servo amplifier (30) and a command-following servo amplifier (50). The command f...  
WO/2001/022095A1
The invention relates to a method for regulating the rotational speed of a motor, to which a digital governor is assigned and which during operation generates an actual value signal for the rotational speed in the form of a rotational sp...  
WO/2001/019206A1
The present invention provides a process for preparing a chewing gum tablet, in which a chewing gum composition is cooled to a temperature at which the composition is brittle, and the composition is ground while brittle to form a fine po...  
WO/2001/003959A1
The invention concerns a heating, ventilating and/or air conditioning device comprising at least one mobile element (3, 4,...) whereof the displacement is controlled by a single-pole motor (M¿1?, M¿2?...) powered by a control device (C...  
WO/2000/074225A1
Driving of fan and compressor motors of E14000 type electrical multiple units (EMU) with alternative current drive, by changing them with the asynchronous alternating current motors, is provided. The sub-units are the boost type regulato...  
WO/2000/073101A1
A system and method for controlling a device such that device operates in a smooth manner. The system may switch between control architectures or vary gain coefficients used in a control loop to control the device. As the architecture or...  
WO/2000/032459A1
System for the controlled propulsion of a transportation device which comprises at least two drive wheels actuated by electromotor means, the system having at least two drive means powered by both independent electromotors; each electrom...  
WO/2000/028656A1
A system for controlling a rotatable device, the system comprising a controller and a rotary device, which has a stator and rotor, wherein the controller is connected to the rotary device to control rotation of the rotary device, and whe...  
WO1999027641A3
An auxiliary system includes a plurality of devices that are driven by ac motors. A plurality of independently controllable isolators couple phase windings of the ac motors directly to phase windings of the electric generator. When an is...  
WO/1999/027641A2
An auxiliary system includes a plurality of devices that are driven by ac motors. A plurality of independently controllable isolators couple phase windings of the ac motors directly to phase windings of the electric generator. When an is...  
WO/1999/001928A1
The invention relates to a method for the decentralised operation of a device for controlling the precise angle synchronism of individual drive mechanisms of a multi-motor drive system linked by a synchronisation bus (4). According to th...  
WO/1998/054830A1
The invention relates to an electronic drive system providing enhanced electromagnetic compatibility by using alternating current torque motors without slip rings or collectors. The inventive drive system has a simple structure and is ea...  
WO/1998/050998A1
A motor comprising two or more rotors (20, 30) rotated by means of a common power supply (6), each rotor (20, 30) having a plurality of poles (22, 32) and being associated with a stator (16, 26) having a plurality of poles (18, 28), wher...  
WO/1998/039838A1
The invention relates to a method for maintaining the perfect synchronism of individual networked drives (2�1?, 2�2?, 2�3?) of a decentralized drive system, the drives (2�1?, 2�2?, 2�3?) of which are connected by means of a b...  
WO/1998/037297A1
An operating system for electrically operated devices such as doors, windows, screening devices and the like, comprises a number of program controlled drive units (101-104) each with a drive unit casing containing a motion transfer membe...  
WO/1998/034336A1
The invention relates to a driving mechanism for components of industrial installations, in particular for primary industry installations. The mechanism has at least one electric motor and at least one converter with driving mechanism va...  
WO/1998/019389A1
A rotating machine integrated with a controller, which can reduce the manufacturing cost of a variable speed pump, fan, etc., and can easily set a control program at the site of installation, and an inverter suitable for the rotating mac...  
WO/1998/007519A1
The invention concerns a plant for the coarse crushing of articles comprising a first shaft (32) for driving the articles and a second shaft (38) for shredding the driven articles. The plant comprises: a first motor (36) coupled with the...  
WO/1997/040428A1
A unified modular system (A) of drives and controls for a mobile robotic application includes a first control module (4a) that covers a full range of commonly used speeds and motions. Second and subsequent drive modules (8) can be chaine...  
WO/1997/004512A1
A control system for controlling a plurality of electrical devices (6) the system including a central controller (2) for controlling functions of the devices, a network (4) coupled between the central controller (2) and the devices, the ...  
WO/1997/002650A1
A unit for controlling the synchronization of a complex machine during power failures or losses, wherein the machine comprises a plurality of motorized devices (A1, A2, A3) for the movement and control of the various components, and wher...  
WO/1996/008075A1
The invention relates to a control for mechanically coupled driving and driven spindles in machine tools. A separate rotation speed control circuit (D1, D2) is used for each spindle and two rotation speed control circuits (D1, D2) are al...  
WO/1996/002443A1
A controller (42) for detecting abnormal operating conditions of a continuous motion machine (12) such as a packaging machine. The acceleration and velocity of each motor (14) for the various axes (16) of the machine (12) are examined by...  

Matches 501 - 550 out of 9,131