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Patent Searching and Data


Matches 351 - 400 out of 22,633

Document Document Title
WO/2009/065699A3
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/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/2008/138454A3
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/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/2010/028736A3
According to the invention, for processing a motor signal (Ia, Um) of a DC motor (4), in particular an adjusting drive of a motor vehicle, the armature current (la) and the motor tension (Um) of the DC motor (4) are detected and are used...  
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/2009/094541A3
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/2009/127472A1
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/2008/128893A3
The invention relates to a device switch for an electric tool, in particular a battery-operated electric tool. A power circuit for supplying power of a motor and an electronic circuit for monitoring the temperature, power and current is ...  
WO/2009/065540A3
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/2009/112094A1
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/2009/052165A3
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/2009/083313A1
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/2009/052808A3
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/2009/082065A2
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/2009/020737A3
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/2008/069359A3
A motor power device includes a power circuit having a low voltage part that receives and converts AC power and outputs DC voltage, wherein a first power for a motor drive coil and a second power for a control circuit controlling the mot...  
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/2007/001800A3
A digital motor control system (Fig 4) utilizes time duration electric pulses generated by digital logic (10, 13, 18, 19) to control the motor speed and direction of rotation of a D C or A C motor (30) The digital logic (10, 13, 18,19) p...  
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/2008/036089A3
A thermal plasma generator may be used in conjunction with at least one thermal to electric converter, such as a solid state thermal to electric energy to electric converter. A micropipe heat pump extracts heat from the at least one ther...  

Matches 351 - 400 out of 22,633