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Patent Searching and Data


Matches 201 - 250 out of 23,247

Document Document Title
WO/2014/051167A2
An electric power tool comprising a voltage conversion circuit configured to control magnitude of a voltage applied to a motor in accordance with magnitude of load.  
WO/2014/050404A1
A motor control device (1) comprises: a communication unit (11) which receives a control command including a motor type identification signal representing the type of a motor (2) to be controlled and a signal designating the target rotat...  
WO/2013/159842A3
A drive arrangement (1) comprising an input (2) from a primary power source (5) and an auxiliary power source (7). The drive arrangement (1) incorporates a DC-DC converter (8) and a motor driver circuit (14). The motor driver circuit (14...  
WO/2013/113540A3
The invention relates to a circuit assembly (1) and to a method for elective control of an alternating current motor (3) or direct current motor (2) supplied from a direct voltage source (4). The circuit assembly (1) comprises two conver...  
WO/2014/013474A1
A power tool (10) comprises a motor for driving a driven element of the power tool (10) and a handle section (12), wherein the power tool (10) incorporates first and second pressure sensitive switches (18,20) operable to control operatio...  
WO/2014/004775A2
An integrated H-bridge electrical harness for controlling an actuator, such as a stepper motor, where the harness includes a signal converter in electrical communication with an ECU, a driver in electrical communication with the signal c...  
WO/2014/000794A1
The present invention relates to vacuum cleaners and methods of controlling a motor driven by a battery source in a vacuum cleaner. For instance, a vacuum cleaner (1) is provided comprising a motor (2), a battery source (3) for providing...  
WO/2013/092548A3
The present invention relates to a circuit (101) for unlocking a plug connection locked by an electromotive actuator, with a first switching element Rel 1 for opening a mechanical locking device, a capacitor C for storing energy for at l...  
WO/2013/182211A1
An electrical apparatus, comprising an electrical drive system and an electrical machine, wherein the electrical machine comprises a rotor, a first separate multi-phase stator winding and a second separate multi-phase stator winding, whe...  
WO/2012/146945A3
An electric motor controller having a front face and a rear face, the front face carrying a plurality of AC output couplings and the controller carrying a converter configured to convert a received DC supply into an output AC supply for ...  
WO/2013/166226A1
A power tool includes a tool housing defining a cavity and a pocket formed in a wall of the tool housing. A motor is positioned within the cavity, and a trigger mechanism is moveably coupled to the tool housing. A speed selector switch i...  
WO/2012/078598A3
In one embodiment, a system for reducing component noise in a motor in a automobile includes a first gate driver and a second gate driver, a high side FET; a low side FET; a charge pump circuit; a high frequency reduction component; and ...  
WO/2013/149743A1
The invention relates to a method for providing the clamping force generated by an electric braking motor in a parking brake. The clamping force is determined as a function of the motor constants of the braking motor on the basis of curr...  
WO/2013/148642A1
In a multi-phase brushless DC motor, a zero crossing N-bit filter includes a comparator and a phase multiplexer. The phase multiplexer connects each motor phase to each of a positive and a negative input of the comparator, with a switch ...  
WO/2013/139785A1
Method of controlling a motor vehicle windscreen wiper motor, powered and controlled by pulse width modulation (PWM) with duty ratio (T) of determined value, in which the instantaneous fundamental period of the modulated pulses is switch...  
WO/2013/097976A3
The invention relates to a method for controlling the position of an actuator (6) of a positioning element (2), having the following steps: carrying out a control on the basis of a control deviation between a predefined intended position...  
WO/2013/128034A1
The invention relates to an operating unit (10) of an electromotive furniture drive (100) comprising a supply device (9) and at least one adjusting drive (7, 8) comprising a housing, operating elements for operating the at least one adju...  
WO/2012/085412A3
Method making it possible to provide data relating to the position of a rotor of an electric machine, characterized in that it comprises: • the application of a voltage (V123) by an electronic variator to an electric machine, said elec...  
WO/2013/045148A3
The invention relates to a method for operating an electronically commutated electric motor, comprising the determination of an actual power value in relation to a target power value of the electric motor; the determination of a correcti...  
WO/2013/088591A1
[Problem] To provide a means for more adequately assessing the actual service life of a brush. [Solution] A brush service life assessment device equipped with: an engine; an engine starter; a crank rotational frequency acquisition unit; ...  
WO/2013/070580A2
A variable speed trigger mechanism that allows a user to reverse a direction of a motor and supply variable amounts of power to the motor using a single trigger mechanism. In a first motion, the user can actuate the reversing module to c...  
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/2013/060327A1
A method for operating a brush commutated electric motor(1). The method comprising the steps of supplying a pulse width modulated supply signal having a first predetermined frequency to said brush commutated motor, and adjusting the duty...  
WO/2012/130432A3
The invention relates to a method and to a device (1) for processing a motor signal of a direct current motor (3), in particular of an adjustment drive of a motor vehicle, wherein the armature current (la) and the motor voltage (Um) of t...  
WO/2013/045992A1
The device (D) for adjusting ventilation on board vehicles or the like comprises a control unit (C) connectable to a command element (E) of a ventilation system on a vehicle and to a ventilation device (V) of the system, wherein the cont...  
WO/2013/041097A1
An electronic circuit adapted to be interposed between a mechanically commutated electric motor (1) and a motor controller (4) for said mechanically commutated electric motor (1). The electronic circuit comprises a spike detector (7) ada...  
WO/2013/034253A1
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/2013/025552A1
An electric motor controller system (400) for modulating requested motor torque via oscillating the instantaneous torque, including a bi-stable torque controller (419); a proportional-integral (PI) velocity controller (416); a proportion...  
WO/2012/023120A3
The present disclosure proposes a resonant motor unit that has a resonant motor, a control unit for driving the resonant motor at a driving frequency, for short-circuiting the resonant motor during at least a first short-circuiting phase...  
WO/2012/028406A3
The invention relates to a circuit assembly for the pulse width modulated actuation of an electric motor. The circuit assembly has at least one transistor half bridge comprising a semiconductor switch, in particular an N-MOS transistor, ...  
WO/2012/023121A3
An electrical appliance with a resonant motor (10) for driving a vibratory component is provided that has a control unit for driving the resonant motor (10) with a predetermined driving frequency and for measuring at a predetermined time...  
WO/2013/002306A1
The primary-side circuit (110) is provided with a direct-current power source (111) and a direct-current motor (112). The secondary-side circuit (120) is provided with an electric power generator (121) and a rectifier circuit (122a). The...  
WO/2011/144634A3
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/2012/134474A1
Ring gears with a cylindrical ring gear body having a wall with a longitudinal length extending between opposing first and second ends, the wall having an outer surface and an inner surface. The inner surface has a first portion that ext...  
WO/2012/131269A2
The invention relates to a system and method for controlling a multiphase electric motor while taking current oscillations into account. The invention relates to a system for controlling a multiphase electric motor (1) with which a motor...  
WO/2012/124674A1
A ripple extraction device (3) extracts ripple components contained in a current signal of a motor (2). The ripple extraction device (3) is provided with: a current-voltage converter (10) that converts a current signal of the motor (2) i...  
WO/2012/115897A2
A temperature estimation module {104} estimates a change in temperature of the magnets associated with the rotor of the motor (117) based on an operational magnetic flux strength that is compared to a reference magnetic flux strength det...  
WO/2012/019669A3
The invention relates to an electronically commutated motor (20) comprising a first connection (46) for connecting to a positive pole of a direct-voltage source (47) and a second connection (50) for connecting to a negative pole (50) of ...  
WO/2009/082066A3
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/2012/112468A2
In a method of controlling speed of a brushless, direct current (BLDC) motor based on dwell, an indication of a desired speed of the BLDC motor is received. A dwell is determined based on a magnitude of a voltage corresponding to the ind...  
WO/2012/107147A1
The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n ≥ 1. The controllab...  
WO/2011/069869A3
The invention relates to an electric motor having a stator and a rotor. The electric motor also comprises a controller, wherein the controller is connected to the stator and/or rotor, and is designed for applying current to the stator an...  
WO/2012/107127A1
The invention relates to an energy storage device (2) comprising at least one first energy supply branch (2a, 2b, 2c) which is designed to supply a separately excited electrical machine (1) with energy via a first connection (3a, 3b, 3c)...  
WO/2012/095367A1
The invention relates, inter alia, to a device (4) for controlling a switch drive (M) of an electric switch with a control apparatus (10), which is suitable for evaluating an input signal, which is present at a binary input (6a, 6b, 6c) ...  
WO/2012/069159A3
The invention relates to a drive arrangement in a motor vehicle, wherein a first drive (2), a second drive (3) and a third drive (5) are provided, wherein the drives (2, 3, 5) each have two supply connections (2a, 2b, 3a, 3b, 5a, 5b), an...  
WO/2012/087373A1
An exemplary device for controlling movement of an elevator door includes a base configured to be secured in a fixed position on an elevator car. A motor is supported by the base. The motor has a shaft that rotates responsive to operatio...  
WO/2012/078598A2
In one embodiment, a system for reducing component noise in a motor in a automobile includes a first gate driver and a second gate driver, a high side FET; a low side FET; a charge pump circuit; a high frequency reduction component; and ...  
WO/2012/076478A1
The present invention relates to a monitoring method and system for monitoring an electric motor (3), comprising: - modelling means (5) for modelling a circle diagram on the basis of the strengths of the current of said electric motor, -...  
WO/2012/038044A3
The invention relates to a drive device for driving the adjustment movement of two vehicle parts relative to one another, having an electric motor which has two motor terminals and which takes up a motor current during operation, and a c...  
WO/2012/064202A1
An electronically commutated motor is programmed by applying a low frequency mains supply (303) to trigger the motor into programming mode (304) and then applying configuration data (306) to the motor by yet further frequency variations....  

Matches 201 - 250 out of 23,247