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Matches 251 - 300 out of 11,416

Document Document Title
WO/2013/038094A3
The method of controlling the controlled switch (10) operates the power supply of an electric motor from an AC voltage source (2). The method comprises a step of actuating the closure of the controlled switch the instant of actuation of ...  
WO/2012/107399A3
A motor starter circuit particularly for compressors of refrigerators, comprising a starter device (1), adapted to be connected to a starter winding (3) and to a steady-state winding (2) of an asynchronous motor, the windings (2, 3) bein...  
WO/2012/069313A3
The present invention provides a three-phase induction machine (1) with a starting winding (11) and a running winding (12) and a winding change-over switch (2) which switches over a flow of current between the starting winding (11) and t...  
WO/2012/127011A3
The invention relates to a method for controlling a rotating electric machine in an open-loop or closed-loop manner. The electric machine has a stator (3), a rotor (4), several machine coils, and a supply apparatus that can be controlled...  
WO/2012/084315A3
An electrical interface (25) for a first induction machine (20) coupled to a first prime mover (15), comprising a first inverter (40) comprising a first DC port and a first AC port, the DC port electrically coupled to a DC bus (60), the ...  
WO/2012/010908A3
A synchronous permanent magnet motor is controlled independently of position sensing means by determining the system parameters including the motor impedance and back-emf and the cable impedance and supplying power according to a predefi...  
WO/2013/067722A1
A control device for high-current equipment, including a first temperature sensor for detecting the ambient temperature of high-current equipment and sending same to a microcontroller; a second temperature sensor for detecting the temper...  
WO/2013/070658A2
The present disclosure is directed to a modulation scheme for driving a piezo element. In one embodiment, a device may comprise, for example, a piezo element, voltage rails and bridge circuitry. The bridge circuitry may be coupled betwee...  
WO/2012/084352A3
The invention relates to a control part for a starting circuit of a direct-current electric motor, comprising a variable resistor by means of which a starting voltage of the direct-current electric motor can be set, wherein the variable ...  
WO/2012/113048A3
The present invention refers to a winding switching circuit and thermal protection for dual voltage hermetic induction motors used in hermetic cooling compressors, the circuit comprising two coils of the main winding (M1 and M2), an auxi...  
WO/2013/060575A2
A synchronous electrical motor comprises a rotor with a DC field winding (13).An exciter (16) is configured to energize the DC field winding (13) by generating a DC current in a first direction across the DC field winding (13) when activ...  
WO/2012/052018A3
An electrical system comprising an electrical motor and a method for controlling the electrical motor. The system comprises the electrical motor, a power source connection, a first motor control device placed between the power source con...  
WO/2012/163433A3
The invention relates to an apparatus for an asynchronous motor (13) and to a method for controlling a star contactor (8) and a delta contactor (7) of an asynchronous motor (13). In order to operate the asynchronous motor (13) over a wid...  
WO/2012/019116A3
Various embodiments of an electric motor and electronic control for an electric motor are disclosed. An exemplary electric motor comprises a single-phase brushless permanent magnet electric motor. In exemplary embodiments, the electronic...  
WO/2013/050245A2
The invention relates to a method for operating a separately excited electric machine (100), in particular a generator of a motor vehicle, wherein an exciting current having a nominal amperage (N) is applied to an exciter winding (4) of ...  
WO/2013/041416A1
The present invention relates to a method of controlling power to an electric machine (10) and a controller device for performing such method. At least one semiconductor switch (41) is provided per phase (31, 32, 33) of a machine AC powe...  
WO/2013/014356A3
The starter circuit according to the invention comprises a combination of a starter and battery voltage step-up device (LPF). The battery voltage step-up device is intended to prevent a drop in battery voltage caused by a current spike o...  
WO/2013/038094A2
The method of controlling the controlled switch (10) operates the power supply of an electric motor from an AC voltage source (2). The method comprises a step of actuating the closure of the controlled switch the instant of actuation of ...  
WO/2011/100971A3
The present invention relates to a motor controller employing bootstrap- capacitor supplies and in particular to the situation where the bootstrap supplies have to be charged, while the motor controller is connected to a spinning and ene...  
WO/2012/113048A8
The present invention refers to a winding switching circuit and thermal protection for dual voltage hermetic induction motors used in hermetic cooling compressors, the circuit comprising two coils of the main winding (M1 and M2), an auxi...  
WO/2011/161408A3
An electrical controller for electric motors is provided. A control system for an electric motor comprises means for supplying excitation current to different windings of the motor at any given time. Furthermore, the amplitude of the exc...  
WO/2013/028270A1
Systems and methods for providing Safe Torque Off signals using communication wires used for control signaling. Single channel Safe Torque Off signals can be provided as a DC voltage or AC voltage across two sets of twisted pair wires. A...  
WO/2013/014356A2
The starter circuit according to the invention comprises a combination of a starter and of a device (LPF) for raising the battery voltage. The battery voltage raising device is intended to prevent a drop in battery voltage caused by a cu...  
WO/2012/013498A3
The invention relates to an electric motor, in particular a starter motor (3) for starting an internal combustion engine (2), having a commutator, a brush apparatus having pairs of brushes, having a bus bar (16) at the positive pole and ...  
WO/2013/014352A1
The invention relates to a starter circuit that comprises a combination of a starter and a device for stepping up the battery voltage. The device for stepping up the battery voltage makes it possible to prevent a drop in the battery volt...  
WO/2013/013186A1
A system and method for optimizing current filtering in a motor soft starter is disclosed. A motor soft starter includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor,...  
WO/2012/037624A3
The present invention relates to a method, a system and an electronic device (15), especially designed for start and control of the functioning of a single-phase induction motor (12). Said motor (12) comprises a run winding (10) and a st...  
WO/2013/010561A1
Disclosed is Drive control unit (320) for a motor (345) of an ambulatory infusion device (100), the drive control unit (320) being designed to power the motor (345) for forward operation in a forward direction and to alternatively power ...  
WO/2012/016914A3
Method and circuit arrangement in which the position of the rotor of an electronically commutated synchronous machine relative to one or more, in particular three, rotor position sensors which are fixed to the stator is determined, where...  
WO/2013/002951A1
Systems and methods for providing variable-frequency soft start of an AC load (118) are disclosed. In one exemplary embodiment, a method (1100) for starting an alternating current (AC) load (118) with a variable- frequency AC power outpu...  
WO/2012/076302A3
The invention relates to a circuit arrangement (1) for an electrical machine (2), in particular for a starter motor (2) for starting an internal combustion engine (15) in a motor vehicle, comprising a current limiting device (3) for limi...  
WO/2012/116425A3
The present invention relates to a starting device for a single-phase induction motor, comprising a stator (M) with a running winding (B1) and a starting winding (B2), a starting device (28) connecting the starting winding (B2) to an alt...  
WO/2012/149696A1
Disclosed is a centrifugal switch actuating mechanism, which includes a terminal box (101), a box lid, a first stationary and movable contact blades set (103), a second stationary and movable contact blades set (104), an external swing a...  
WO/2012/144276A1
Proposed is a motor control device that executes rotary control that tracks load fluctuations in a starting motor. The proposed motor control device is provided with: a detection means (4) that detects the current wave height (Ip) and th...  
WO/2012/142008A2
A system for controlling operation of a motor drive during fast start-up of an induction motor includes an AC motor drive having a PWM inverter and a control system to generate a command signal to cause the PWM inverter to control an out...  
WO/2012/121902A1
A device for improving efficiency of an induction motor that soft-starts the motor by applying a voltage to the motor that is substantially less than the rated voltage then gradually increasing the voltage while monitoring changes in cur...  
WO/2012/118590A2
Embodiments of the present invention provide a device and method for generating initial operating points for controlling an interior permanent magnet (IPM) machine. The method includes loading an inductance lookup- table (S110), first ca...  
WO/2012/115917A2
A pair of direct d-q-axis voltage commands is associated with a monotonically varying test sequence of test rotor angular positions (S300) to determine a correct rotational direction of a rotor of the motor in response to application of ...  
WO/2010/058885A3
The present invention relates to a single phase induction motor, and more particularly, to a single phase induction motor, wherein a variable resistance element which can change a winding number of a main winding or an auxiliary winding ...  
WO/2012/110358A1
In a drive system (10) for a ball mill (2) driven by a motor (12) with a slip-ring rotor, wherein the motor (12) is assigned a family of characteristics (36) relating the torque (M) of the motor to a further characteristic variable (D), ...  
WO/2012/013189A3
The invention relates to a method (19) for starting an electric single-phase induction motor (1), wherein during a start-up interval of the start-up cycle for starting said electric motor (1), the frequency (fref) of the electric current...  
WO/2012/104169A2
The invention relates to an assembly for controlling an electric vacuum pump (1) for a vehicle, said assembly being connectable to a supply voltage (2) by means of at least one switch (4, 7, 10, 13) that can be controlled by an electroni...  
WO/2012/084352A2
The invention relates to a control part for a starting circuit of a direct-current electric motor, comprising a variable resistor by means of which a starting voltage of the direct-current electric motor can be set, wherein the variable ...  
WO/2012/003825A3
The invention relates to a method for compensating a phase offset between a rotor position sensor and the rotor position of an electrically commutated motor, in which the rotor position sensor measures a position of the rotor of the elec...  
WO/2012/076777A1
The starter motor circuit (1) according to the invention comprises a combination (10) of a starter motor and of a device (LPF) for stepping up the battery voltage. The device for stepping up the battery voltage is intended to prevent a d...  
WO/2011/157553A3
The invention relates to a method for starting an electric motor (100) having a rotor, comprising the following steps: - driving the rotor with a first torque in a first rotational direction, wherein a maximum value of the first torque i...  
WO/2011/082859A3
The invention relates to a method for starting a synchronous machine, wherein a predefined torque M_V1 is given and a rotational speed of the synchronous machine is adjusted once the synchronous machine has been started, characterized in...  
WO/2011/064015A3
The invention relates to a starter supply network, comprising a first energy source (101) for the primary energy supply of a starter motor, wherein the first energy source (101) is coupled to a network terminal (105) of the starter suppl...  
WO/2012/065636A1
The invention relates to a switching device (1) having a busbar which has a connection point (3) by means of which a connection to an external line (15) can be established. In order to provide an improved switching device (1) which allow...  
WO/2011/098485A3
The invention relates to a method for reducing the starting current of a polyphase machine operated by block commutation, said machine comprising a battery, and, per phase, a high-side switch, a low-side switch, a phase winding, and a ro...  

Matches 251 - 300 out of 11,416