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Matches 401 - 450 out of 17,462

Document Document Title
WO/2010/083877A1
The invention relates to an electric motor having a stator (465), to a rotor (470), and to a device for analyzing a signal provided for controlling said motor (11), having a receiving unit (430, 440) for receiving a control signal (PWM_m...  
WO/2010/075926A1
The invention relates to a device and to a method for operating a drive (100) having a mechanically commutated electric motor (110), - wherein a rotary position (s) of the drive (100) is determined by a circuit (300) from a ripple of a m...  
WO/2010/072782A1
The present invention relates to a system for controlling a direct current motor (M) with straight recesses including a position sensor (CP) for measuring the angular position (θ) of the motor (M), and a current sensor (CC) for measurin...  
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/2010/055484A1
The present invention is concerned with an electronic circuit (C) that is connectable to a voltage source (B) and a load (M). The circuit (C) comprises a controllable load switch element (TL) that is arranged so that a supply voltage (V5...  
WO/2010/045993A1
The invention relates to an electric motor (15) for driving a compressor of an air supply unit of a vehicle, wherein the electric motor (15) comprises at least one semiconductor switch (30) for actuating the electric motor (15). The inve...  
WO/2010/040349A1
The invention relates to a method for providing a trigger signal in response to the commutation of a mechanically commutated electric motor (1). The method comprising the steps of providing a mechanically commutated electric motor (1), p...  
WO/2010/038339A1
A first terminal of a protection element of a control unit is connected to a line between a motor and a switching element, and a second terminal thereof is directly connected to a ground-side line that is common to a controller and the s...  
WO/2010/028915A1
The invention relates to a method and a device for controlling an electric motor (2), wherein an operating voltage and an operating current is supplied to an electric motor (2), and at least one measurement variable (4, 6, 7, 8) characte...  
WO/2010/015461A2
The invention relates to a device (12) comprising an electric machine (16), a voltage detection device, and an analysis device. A fixed or movable part of the electric machine (16) has a field winding (F1) to which a first electric volta...  
WO/2010/012681A1
The invention relates to a method for determining measured values in a system (101) driven in clocked fashion, wherein the clocking has driving periods in which the system (101) is driven and non-driving periods in which the system (101)...  
WO/2010/004971A1
Provided is a motor drive device (10) for driving and controlling a motor (M). The motor (M) has one electrode to which a DC voltage is applied from a DC power source and the other electrode grounded via a switching transistor (22). Th...  
WO/2009/150280A1
The invention relates to a system for controlling the movement of passenger access doors in railway vehicles and to a method for operating said doors using the aforementioned system. The invention is intended to reduce the number of door...  
WO/2009/127472A1
An electrical motor activation method, in which an electric motor, comprising a rotor, which is connected to a motor shaft, and a stator having brushes, said stator comprising multiple commutator lamellae for the commutation of the windi...  
WO/2009/112094A1
The invention relates to an electric motor (2) comprising a rotor (21) with a plurality of windings (22) having one or more respective coil elements (23), said windings being controllable depending on the relative position; a stator (25)...  
WO/2009/111503A2
Circuitry (e.g., 7, 9) for controlling motors (e.g., Figs. 2A and 2B), such as a brushless motor (BLM). is disclosed. The circuitry (e.g., 7, 9) may comprise one or more inputs for receiving rotor position signals (e.g., 91, 92) from one...  
WO/2009/107183A1
This aims to provide a control device comprising opening detecting means (17) for detecting the opening of a control valve (9) driven by an electric actuator (11). A control unit (21) sets the target opening of the control valve (9), the...  
WO/2009/106508A1
A H-bridge circuit for supplying a load with a defined current comprises a first transistor for coupling a first terminal of the load to a positive potential of a power source; a second transistor for coupling the first terminal of the l...  
WO/2009/104713A1
Provided is a motor load control device which can suppress heat generation of an electronic switch and suppress fan vibration and generation of a noise accompanying the fan rotation. The device includes switch means (17) formed by a firs...  
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/2009/097079A1
A multiphase current sensing method wherein the sum of the phase currents is zero including: sensing a.c. and/or d.c. currents in first and second phases; sensing a.c. current in a predetermined a.c. frequency range in a third phase; and...  
WO/2009/094541A2
An electromagnetic actuator with flux feedback control includes two poles located on opposite sides of a soft-magnetic target. A bias flux is introduced that flows into both poles. Magnetic circuitry may be designed so that the total bia...  
WO/2009/092273A1
A winch motor control system and its control method, wherein the control system includes a main controller MCU (11) for detecting the power supply unit of the winch motor, the current of the winch motor and the temperature of the winch m...  
WO/2009/083313A1
The present invention relates to a motor variable detector (10) for providing a speed detection signal (28) and/or a torque detection signal (26) of an electric motor (14), which comprises a series connection of at least one field windin...  
WO/2009/082066A2
The present invention relates to a motor controller of an air conditioner, including a converter for converting a commercial AC power into a DC power, an inverter including a plurality of switching elements, the inverter receiving the DC...  
WO/2009/082065A2
The present invention relates to a motor controller for air conditioner including a converter converting AC utility power into DC power; an inverter for compressor having a plurality of switching elements for inverter, the inverter conve...  
WO/2009/082068A2
The present invention relates to a method of controlling a three-phase motor of an air conditioner by using an inverter including a total of three pairs of upper and lower arm switching elements connected in parallel, wherein the motor i...  
WO/2009/074856A1
A maneuvering device with accumulation of electric energy for switches or - disconnect switches (S) boxed and modular, comprising a small -sized low- current power supply device (AL), which is used only for charging an accumulation capac...  
WO/2009/074640A1
The invention relates to a circuit for controlling a number of DC motors (M1, M2) capable of being controlled independently of one another, comprising, for each motor (M1, M2), an H-bridge (1A, 1B) made up of a first branch (3) and of a ...  
WO/2009/065540A2
Disclosed is a fan arrangement (20) comprising a fan (24) that is driven by an electric motor (22), a device for continuously detecting an actual electrical value associated with the electric motor (22) during operation, an input device ...  
WO/2009/066838A2
The present invention relates to a motor controller for air conditioner including a converter having at least one switching element for converter, the converter converting AC utility power into DC power by a switching operation of the sw...  
WO/2009/066840A2
The present invention relates to a motor controller, including a converter for converting commercial AC power into DC power, an inverter including a plurality of switching elements, the inverter receiving the DC power, converting the DC ...  
WO/2009/065699A2
The invention relates to a method and a device for determining the position of a closing part of a vehicle, that can be moved by a direct-current motor. A motor current signal is derived from the direct-current motor and converted into a...  
WO/2009/066839A2
The present invention relates to a motor controller of an air conditioner, including an inverter including a plurality of switching elements and adapted to convert a DC voltage, input through switching operations of the switching element...  
WO/2009/065280A1
An electric shaver with an led/lcd speed display comprises a power circuit module, a motor module, a motor-driving module, a motor-detecting module, a charge control module, a module for sampling electric quantity of a self-provided powe...  
WO/2009/052808A2
The invention relates to a circuit arrangement (1) in the manner of control electronics for operation in the clockwise and/or counterclockwise rotation of an electric motor (2) in a power tool, particularly for a cordless screwdriver. Th...  
WO/2009/053161A1
The invention relates to a method for detecting a load drop of a unit (80) that is connected to an H bridge circuit (52) of a controller (50), wherein the load drop is detected via at least one comparator (68) of the controller (50), whi...  
WO/2009/051235A1
A motor drive circuit is provided with an output circuit having a drive transistor which supplies a motor with a drive current. The output circuit is characterized in having a control transistor which turns on the drive transistor connec...  
WO/2009/052165A2
Presented is a harmonic regulator that regulates a plurality of individual harmonics in a system having periodic torque disturbances to commanded values, including zero. For each harmonic being regulated, a feedback signal having at leas...  
WO/2009/046673A1
A torque management method for motors of hybrid electric vehicles. The method includes torque combination and limitation in electric driving mode, torque combination and limitation in generating mode, and torque arbitrating management. W...  
WO/2009/041888A1
A method for creating a stream of air for removing residue particles formed in connection with cutting, grinding and/or polishing of a stone or stone-like material is disclosed. The method comprising energizing an electric motor (27) to ...  
WO/2009/034223A1
DC/DC bridge for controlling a direct-current load (M1), which bridge is provided with controllable semiconductor switches (S11 - S14, S21 - S26) and with a control unit (BC1). The bridge comprises two bridge sections (B11, B12), at leas...  
WO/2009/020737A2
A control circuit includes a PWM oscillator configured to generate a PWM output signal having a duty cycle. The speed of a motor is controlled by the PWM output signal to be proportional to the duty cycle. The control circuit also includ...  
WO/2009/007175A2
The invention is directed at an electric motor commutator (12) with a switching link (20) with a high-side semiconductor (T1) and a low-side semiconductor (T4). In addition, the commutator (12) has a pulse-width modulator (26) for drivin...  
WO/2009/003703A2
The invention relates to a device (1) for driving an electric motor (2), particularly a DC motor in a battery-operated electric tool. Said driving device (1) comprises a power circuit (3) encompassing at least one power semiconductor (4,...  
WO/2009/000579A2
The invention relates to a method and a device for detecting the rotation direction of a drive unit, especially of an adjustment drive in a motor vehicle. Said device comprises a motor (12) the rotation direction of which can be reversed...  
WO/2009/000234A1
The present invention relates to an apparatus and method for determination of the present position of a rotor, in particular of the rotation angle of the rotor, of an electric motor, with this apparatus determining the present position o...  
WO/2008/150334A1
A power tool may include an electronically commutated motor such as, for example, a brushless DC permanent magnet motor with a rotor having internally mounted magnets. A control system may be used to control the motor in a manner that im...  
WO/2008/138454A2
The invention relates to an electric drive which comprises at least one motor (31) which is or can be supplied with an electric motor current (30) by means of a converter (26), a current regulator (22) by means of which the motor current...  
WO/2008/138663A1
The invention relates to a method for operating a non-stalling electric motor (2), comprising the following steps: determining an indication of the motor temperature (T); providing an actuating voltage for operating the electric motor de...  

Matches 401 - 450 out of 17,462