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Matches 351 - 400 out of 13,749

Document Document Title
WO/2012/052600A1
The invention relates to a braking apparatus for braking the rotating part (1) of a hoisting machine. The braking apparatus comprises one or more brakes (3, 4), which contain altogether at least one movable brake shoe (5, 6), spring elem...  
WO/2010/099787A3
An electrodynamic braking device for a universal motor is proposed, wherein during a braking operation a field winding is supplied from a network, and an armature is directly short-circuited, and a braking operation is carried out using ...  
WO/2012/049357A1
The invention relates to a method in connection with a quick stop situation of an elevator, and also to a safety device (10) for implementing the method. In the method an activation process of a machinery brake (1) is started and also a ...  
WO/2012/047754A1
A kinetic energy recovery system ("KERS system") and motorcycle equipped with the same is disclosed. The KERS system may be mechanical, hydraulic, or a combination thereof. In an embodiment, motorcycle includes a rear wheel, an electric ...  
WO/2012/042788A1
This motor control device has a dynamic brake function of absorbing the energy of a motor to apply a brake to the motor. The motor control device comprises: a dynamic brake resistor; a thermal switch which is arranged adjacent to the dyn...  
WO/2012/028642A1
An assembly comprising a movable element being movable in relation to a base, a first electric motor for moving the element in relation to the base, the motor having one or more first windings each having at least two inputs, a first bra...  
WO/2012/024251A2
A drive system (100, 100a-c) for an electric drive machine (102, 102a-c) having an engine (104, 104a-c), a generator (106, 106a-c), a motor (108, 108a-c), final drive wheels (110, 110a-c) and auxiliary devices (116, 116a-c) is provided. ...  
WO/2012/023267A1
The present invention makes effective use of regenerative electric power that is generated when a tabletop movement motor decelerates. A tabletop movement unit (10) comprises: a tabletop movement motor for moving a tabletop on which a su...  
WO/2011/162328A1
Disclosed is a motor braking apparatus provided with: a voltage detection unit (15) for detecting inter-terminal voltages between terminals (2a) of a motor (2); a frequency/voltage conversion unit (16) for converting the frequencies of t...  
WO/2011/144634A2
The invention relates to a method for moving an element, which is driven by an electric motor inside a predetermined movement section between two block positions each formed as a limit stop, into a block position, characterized in that, ...  
WO/2010/046062A3
The invention relates to an assembly having a brake resistor, wherein the brake resistor is connected in series to a fuse, and a trigger element comprises a switch with which the BR or a part of the BR can be short circuited.  
WO/2010/060585A3
Disclosed is a converter for feeding a motor, comprising: - a control electronics module for generating control signals for controllable semiconductor switches, in particular power semiconductor switches; - phase modules which are each c...  
WO/2011/129705A1
Lifting device, such as a winch, crane or similar, especially in connection with maritime applications, which lifting device includes one or more electrical motors (11) for powering a drum (12) with lifting wire, which motor(s) are exter...  
WO/2011/076827A9
The invention relates to an electrodynamic braking device for a universal motor, wherein a field winding is fed from a grid during a braking operation, and an armature is directly short-circuited, and a braking process is performed by me...  
WO/2011/105676A1
The present invention relates to an apparatus and method for controlling the speed of a wound-rotor induction motor. Specifically, a wound-rotor induction motor according to one embodiment of the present invention comprises: a rectifying...  
WO/2011/101915A1
Disclosed is a command generation device capable of switching the averaging time of a moving average filter to any value without producing errors in the movement distance. The command generation device comprises: a speed command generati...  
WO/2011/095005A1
An automatic safe brake apparatus for a wind driven generator. The generator comprises a stator (2), a stator shaft (3) and a rotor (1). An electromagnetic clutch (9) is mounted on one end of the stator shaft. The electromagnetic clutch ...  
WO/2011/094910A1
A braking method and a braking device used for a vertical shaft wind-driven generator are provided. The rotational speed of the vertical shaft wind-driven generator is monitored after the starting of the vertical shaft wind-driven genera...  
WO/2011/076827A2
The invention relates to an electrodynamic braking device for a universal motor, wherein a field winding is fed from a grid during a braking operation, and an armature is directly short-circuited, and a braking process is performed by me...  
WO/2011/072983A1
The present invention relates to a device and a method for storing recovered energy in a machine tool. Kinetic energy is first converted to electrical energy, the recovered energy is stored in an intermediate circuit or a combination of ...  
WO/2011/070651A1
The disclosed power conversion device is provided with: a power converter (2) that drives an induction machine (1); a control unit (40) that controls the power converter (2); and a braking power command computation unit (6) that computes...  
WO/2011/063851A1
The present invention relates to a softstarter (2) for starting and stopping an asynchronous motor (1) having three phases (L1, L2, L3), comprising two pairs (3A, 3C) of semiconductor devices of the type turning off at zero-crossing of t...  
WO/2011/057660A1
An apparatus for generating electromagnetic torque in an N-phase electric machine, N being a positive integer, comprises N lines, each of the N lines including an input terminal (A, B, C), an output terminal (a, b, c), and a pair of thyr...  
WO/2011/055585A1
Disclosed is an electric cylinder control method and an electric cylinder control system that can prevent a pressurizing load from exceeding a target load and that is controlled by a servo motor that can shorten pressurization time. A se...  
WO/2011/040636A1
Disclosed is a control device for a hoist, by which the life of the brake of a hoisting device can be easily determined. A time setting unit sets the time between the start of a double winding induction motor and the braking release of t...  
WO/2010/105903A3
The invention relates to an electrodynamic braking device and to a method for braking a universal motor having a field winding and an armature. The universal motor can be switched from a motor mode to a braking mode. In the motor mode, t...  
WO/2010/139844A1
The invention relates to a power supply system of a transport system, which comprises: a direct-current intermediate circuit (1); a motor bridge (2) connected to the direct-current intermediate circuit, for supplying power between the di...  
WO/2009/106223A3
The invention relates to a permanent-magnet-excited electric machine (1) operated without a sensor, in particular for a fuel cell unit of a motor vehicle, in particular an automobile, having a stator (2) comprising a stator winding (3) a...  
WO/2010/115865A1
The invention relates to a device (56) for coupling energy stores (66,68) to an intermediate voltage circuit (18) of a traction current converter, which comprises a feed circuit, an intermediate voltage circuit capacitor (26), and a load...  
WO/2009/127660A3
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/2010/114520A1
An exemplary elevator machine includes a motor that operates in a first mode to move an elevator car and in a second mode to generate power. A line reactor is associated with the motor for delivering power generated by the motor operatin...  
WO/2010/108515A1
The invention relates to a method for operating a wind power plant on a load formed by an electrical supply grid (VN), wherein the electrical output power of the electrical generator (G) thereof driven by the wind-powered rotor thereof i...  
WO/2010/103693A1
Provided are a vibration motor with long life wherein vibration of the vibration motor can be converged instantaneously, and an electronics. Upon receiving an input signal from the operating section (5) of a touch panel, an electronics (...  
WO/2010/102720A1
The invention relates to a method for operating an underwater power station comprising a water turbine for absorbing kinetic energy from a water current; an electrical generator comprising converter feeding, wherein the generator rotor t...  
WO/2010/091799A1
Unit, comprising a first part and a second part arranged in a moveable manner relative to the first part, wherein the first part comprises a blade part extending in the movement direction, in particular an elongated blade part, wherein t...  
WO/2010/023127A3
The aim of the invention is to provide a device (15) for converting electrical energy into heat in the field of drive voltage technology and/or high voltage technology, said device comprising a brake resistance and at least one controlla...  
WO/2010/083999A1
The invention relates to a drive assembly for the motorized adjustment of an adjusting element (1) of a motor vehicle, wherein at least one drive (2) having an electrical drive motor (3), in particular a direct current motor, and a drive...  
WO/2010/081782A1
A voltage rectifier (1) for supplying power to direct-current electromagnetic brakes, particularly for application in electric motors, comprising a diode bridge (4) connected to the power supply (2), and means (7) for low-voltage power s...  
WO/2010/047944A3
A method ( 100) is provided for controlling torque of an electric motor (12) including the step (106) of supplying drive current to drive the electric motor. The speed of the electric motor is monitored (108) and from the monitored speed...  
WO/2010/050710A3
Disclosed are a method for controlling the motor of an electric screwdriver for medical use, and an apparatus using the same. The method of the present invention for controlling the motor of an electric screwdriver for medical use, where...  
WO/2010/075820A1
A control method for a power tool (2) and a power tool (2) implementing the control method. The power tool (2) includes an output shaft (9) for driving a working head (8) to rotate, a motor (6) for driving the output shaft (9) to rotate,...  
WO/2010/060361A1
A gear control system and gear control method thereof. The gear control system comprises a motor position detecting device (15) for detecting the position of the motor and sending the information of the motor position to a central proces...  
WO/2010/061050A1
The invention relates to an apparatus and a method for supervising the condition of a brake. According to the invention, in the method a brake control procedure is performed, and the movement of the armature part (4) of the brake that oc...  
WO/2010/060585A2
Disclosed is a converter for feeding a motor, comprising: - a control electronics module for generating control signals for controllable semiconductor switches, in particular power semiconductor switches; - phase modules which are each c...  
WO/2010/057605A1
The invention relates to a method for operating a drive and a drive, wherein the drive comprises at least one motor having a rotor shaft that can be loaded by a brake torque created by at least one brake comprising a powered brake coil, ...  
WO/2010/055074A1
The invention relates to an electric brake system for an electromechanical machine (M) connected to the output terminals of an inverter (3), the input terminals of which are supplied by a DC voltage source (1), the system comprising an e...  
WO/2010/050710A2
Disclosed are a method for controlling the motor of an electric screwdriver for medical use, and an apparatus using the same. The method of the present invention for controlling the motor of an electric screwdriver for medical use, where...  
WO/2010/047944A2
A method ( 100) is provided for controlling torque of an electric motor (12) including the step (106) of supplying drive current to drive the electric motor. The speed of the electric motor is monitored (108) and from the monitored speed...  
WO/2010/046062A2
The invention relates to an assembly having a brake resistor, wherein the brake resistor is connected in series to a fuse, and a trigger element comprises a switch with which the BR or a part of the BR can be short circuited.  
WO/2010/033101A1
An improved motor driver (40) is adapted to controllably supply a variable voltage to each of the terminals (12A, 12B, 12C) of the three-phase electric motor (13) for selectively causing the motor to move a load (18). The improved driver...  

Matches 351 - 400 out of 13,749