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WO/2007/034689A1 |
There is provided an AC synchronous motor initial magnetic pole estimation device not using a magnetic pole detector including a thrust or torque pattern generation unit for generating a thrust or torque pattern, a magnetic position inst...
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WO/2007/022414A1 |
A system for limiting AC inrush current to a power supply. The system comprises first, second, and third windings magnetically coupled to a core of a transformer of the power supply. The system also comprises a first low-voltage contacto...
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WO/2007/014725A1 |
The invention relates to a safety switching unit, with which a safety device, preferably an electric drive, can be controlled into a safe state. The safety switching unit (900) comprises a microprocessor or microcontroller (822) that, fo...
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WO/2007/012530A1 |
The invention relates to a control circuit for an arrangement having at least two DC motors (10, 12), which can be connected in parallel to a DC voltage system (16, 18), in particular a circuit for controlling at least two motors of a mo...
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WO/2006/130565A2 |
A single or multiphase alternating current electric motor or synchronous generator includes main windings and additional windings that perform de-saturation of the magnetic field of the main windings. Each additional winding is fed throu...
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WO/2006/125697A1 |
Disclosed is a method for controlling an electric motor (10) fed by a constant voltage supply system (14, 20), especially a method for controlling a fan motor which is fed by a motor vehicle power supply system using pulse width modulati...
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WO/2006/127468A2 |
A power supply system [Fig. IA, 10] is provided that includes a power supply and at least one energy storage capacitor bank. A voltage monitor [Fig. IA, 16] is coupled to the power supply [Fig. IA, 12] and the energy storage capacitor ba...
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WO/2006/124160A2 |
A cryptographically secure, computer hardware-implemented binary finite-field polynomial modular reduction method estimates (32) and randomizes (36) a polynomial quotient q' (x) used for computation of a polynomial remainder. The randomi...
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WO/2006/119864A1 |
The invention relates to a method for using an electric machine as servomotor, particularly in actuating devices of an automatic gearbox oder an automated manual gearbox of a motor vehicle, wherein a set engine speed is determined based ...
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WO2006088967A9 |
A fan control system (100) and method that maintains the operating temperature of computer and electronic devices or components at about a predetermined control level to minimize power consumption and audible noise. The fan control syste...
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WO/2006/111252A1 |
The invention relates to a method for heat-treating metal work pieces, whereby a cooling gas flow is produced in a vacuum furnace by means of a fan, driven by a three-phase AC motor, in order to quench the work pieces. The aim of the inv...
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WO/2006/106530A2 |
The present invention provides an S SRM (switched reluctance machine), which supports one or more phases and each phase comprises a stator, a rotor and coils. The stator is hollow, cylindrical and comprises stator poles extending inwards...
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WO/2006/102981A1 |
The invention relates to a submersible motor for a submersible pump, which is embodied as a one-phase asynchronous motor, and a main winding (6), an auxiliary winding (8) in addition to a start device (10, 14, 16, 18, 20, 22) which is us...
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WO/2006/102162A1 |
A power closure system with anti-pinch having a closure, a motor operatively connected to the closures a sensor operatively producing signals indicative of motor speed, an anti-pinch activator coupled to the sensor and the motor, the ant...
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WO/2006/102609A2 |
In electric machine (100) Is disclosed In this patent application. The electric machine comprises a rotor portion (10) and a stator portion (60). The rotor portion comprises a plurality of magnets (37). The stator portion comprises a plu...
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WO/2006/098703A1 |
The invention relates to a circuit and a method for controlling a reluctance motor, powered from the public power transmission system (the power grid), and, in particular, it relates to a method of operation which allows the drive electr...
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WO/2006/088969A2 |
A bi-directional sensing edge includes a mounting member for securing the sensing edge to a leading member of a gate. An elongate outer sheath has at least first and second portions each respectively corresponding to first and second sid...
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WO/2006/086000A2 |
The radial/rotary propulsion system of the present invention features a flywheel (12) having concentric rings of permanent magnets (18, 20), attached to one or both sides or embedded into the flywheel (12). These permanent magnets intera...
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WO/2006/082140A1 |
The invention relates to a communication-enabled motor starter (1), a method for transmitting data from and/or to such a motor starter (1), and the use of a device interface (3) for the wireless transmission of data in a communication-en...
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WO/2006/077006A1 |
The invention relates to a method for determining a synchronisation time point of alternating current plates on network alternating currents affected by harmonic waves. The synchronisation time point is determined by evaluating the flank...
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WO/2006/076833A1 |
A mutual inductance contactless starter for a single-phase AC motor is mainly applied to the starting of a compressor motor with starting capacitor, meanwhile it can also be applied to the starting of a normal single phase AC motor. It i...
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WO/2006/069931A1 |
The invention relates to a method for preventing contact consumption in low-voltage power circuit breakers with at least one controllable semiconductor switching device and with at least one electromechanical switching device connected i...
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WO/2006/068116A1 |
A motor driving apparatus by which a motor start time is shortened. In the motor driving apparatus (100), a control section (110) detects a number of rotations of a motor to be driven, and a control voltage (Vcnt) is generated to have th...
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WO/2006/067093A1 |
According to known methods for controlling three-phase current loads, two pairs of controlled valves (V1 and V4 or V5 and V2) are provided in two of three strands (R, T) of a three-phase current network, the two valves of a pair being co...
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WO2006039626A9 |
A single controllable switch (509) drive system for regulating the speed of a two-phase switched reluctance machine (TPSRM) (700) rotor may include a speed control feedback loop (970) component that uses an established speed control sign...
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WO/2006/056106A1 |
An inductance contactless starter for a single-phase AC motor includes a current inductor and a triac, meanwhile one terminal of the secondary coil of the inductor is connected to the gate electrode of the triac, and the other terminal i...
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WO/2006/052739A1 |
A method of starting a permanent magnet machine. A machine stator voltage in a stationary reference frame is sensed. An initial speed of a rotor of the machine is estimated based on the sensed voltage, and state variables of control algo...
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WO/2006/050271A2 |
A compressor (26) is powered by a motor (24) which is, in turn, powered by a variable speed drive (VSD) (20). The switching frequency and voltage/frequency relationship of the VSD (20) may be adjusted dynamically to maximize efficiency.
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WO/2006/047553A2 |
A control system and method for controlling the speed of a PSC motor having an auxiliary winding configured to provide torque for initial motor startup and a run winding configured to provide continuous motor operation. The motor is coup...
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WO/2006/044420A1 |
A system includes a motor (120) for producing motion when current is supplied to the motor (120) and a motor controller (145) coupled to the motor (120) for receiving a motor current signal indicative of the current supplied to the motor...
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WO/2006/039963A1 |
The inventive motor control is provided with an externally accessible interface and a control unit comprising means for producing control signals for power semi-conductors, wherein said control signals are transmitted to the control inpu...
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WO/2006/037412A1 |
Disclosed are a method and a device for switching a motor from a starting converter to a main converter in a textile machine comprising a multitude of operating points that are driven by an individual motor. The operating points are join...
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WO/2006/034977A1 |
So-called soft starters as specific antiductors are useful for starting and stopping motors, in particular, three-phase asynchronous motors. On start-up, the terminal voltage of the motor is reduced by phase control of the mains supply a...
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WO/2006/035194A2 |
A method of starting and apparatus for starting a multiphase electrical machine is disclosed. The aim is to reduce oscillatory pulsation in torque generated by the motor and inrush current that occurs shortly after start-up. The starting...
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WO/2006/029608A1 |
The invention relates to a method for detecting a drive belt malfunction in an asynchronous motor (1) which is operated by a frequency converter under standard parameters to drive a rotary heat exchanger. The parameters of the frequency ...
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WO/2006/027480A1 |
The invention relates to a control and power module (100) for a rotating electric machine (300) comprising a bridge of switches (3), a plurality of driver circuits (10, 20, 30) for driving said bridge of switches (3), a control circuit (...
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WO/2006/028861A2 |
A variable speed electric motor to drive a variable load over a substantially continuous range of speed. The motor has a plurality of winding combinations that may be switched into and out of the motor circuit. A torque controller select...
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WO/2006/028638A2 |
In one embodiment, a multi-engine locomotive includes at least one converter to convert mechanical energy outputted by the engines to Direct Current (DC) electrical energy, a traction motor, and a DC bus connected to the engines, convert...
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WO/2006/020667A2 |
The present invention is directed to a power control architecture for a vehicle, particularly a locomotive, in which a number of energy sources (105, 111, 115) are connected to a common electrical bus (101, 102) and selectively provide e...
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WO/2006/020587A2 |
The present invention relates generally to regenerative braking methods for a hybrid vehicle such as a hybrid locomotive, which are compatible with optimum management of a large battery pack energy storage system. Four methods for recove...
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WO/2006/018700A1 |
The method for supplying a motor with direct current from a voltage source via two relays is characterized in that it comprises a first transitory stage wherein the two relays are in a rest position, wherein one of the relay coils is sup...
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WO/2006/015952A1 |
The invention relates to a method for operating a two-phase rotary current controller. In order to optimize the operation of a two-phase rotary current controller, magnitudes of a parameter that can be varied in both controllable phases ...
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WO/2006/015267A2 |
A hoist unit (100) is powered by a separate power unit (120). The hoist unit (100) includes: a motor (10), a mounting connector, a Sj)OOl (2), webbing (7), auto cut-off (110) and a first portion of a mating electrical connector (40). The...
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WO/2006/003799A1 |
An inexpensive and small-sized starter generator for a vehicle capable of developing both the engine start function and the power generation function of an engine by increasing its maximum torque without increasing the number of turns of...
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WO/2006/001601A1 |
Disclosed is a starting circuit used for initially driving an electric motor by temporarily supplying power to a starting coil of the electric motor and constructed in the form of an integrated circuit such that it stably operates the el...
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WO/2005/119894A1 |
Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter ad...
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WO/2005/119899A2 |
The present invention relates to the use of lacritin, and fragments, derivatives, and homologs thereof, and nucleic acid sequences encoding that protein. The invention relates to the use of lacritin as a growth factor human corneal epith...
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WO/2005/118329A1 |
An energy management system (1000) for a mining machine comprises an alternator (1100). The alternator (1100) can be mechanically coupled to an internal combustion engine. Alternator (1000) can generate AC signals, thereby converting mec...
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WO/2005/119895A1 |
Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter ad...
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WO/2005/117247A1 |
The drive circuit (10) includes a processing and control circuit (14) comprising a protection circuit (16), designed to generate at its output a logical inhibiting signal (C) starting from every zero crossing of the motor supply voltage ...
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