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Patent Searching and Data


Matches 401 - 450 out of 23,247

Document Document Title
WO/2007/103109A3
A cordless power tool (300) has a transmission (12) having multiple speed ranges In the light torque range, the speed of a motor (8) of the cordless power tool is held constant to hold an output speed of the transmission (12) constant un...  
WO/2008/080474A1
An adjustment system for a motor vehicle, particularly with a window opener or a motor vehicle lock, comprises an electric motor (2) mechanically coupled to an adjusting mechanism, and a relay (5) electrically connected to the electric m...  
WO/2008/077898A1
A controller for electrically adjustable furniture comprises a supply device (10), which is coupled to system terminals (12) via a system isolating relay (13) and is used for producing a voltage present at supply terminals (11). The syst...  
WO/2008/069359A2
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/2008/070382A2
Provided are a method, computer-readable medium, and system for automatically determining a proper operational current input to an electric motor. In an exemplary embodiment, a method for determining the proper operational current input ...  
WO2007070814A9
Methods and apparatus are provided for generating zero- sequence voltages based on voltage commands and a motor output signal. At least one of the methods includes, but is not limited to, receiving a torque command and generating three-p...  
WO/2008/064759A1
The invention relates to a high pressure cleaning device with an electric motor and a pump driven by said electric motor for the delivery of pressurized cleaning fluid, wherein the electric motor contains a coil mechanism with at least o...  
WO2008039287B1
A self propelled upright vacuum cleaner (10) is provided with a Hall effect sensor (310) to provide a Hall voltage that varies according to the position of a handgrip (114) maintained by the vacuum cleaner (10). A microprocessor generate...  
WO/2008/064075A2
A portable electric appliance (1, 23) such as a hand held hair dryer uses a brushless electric motor (13, 25) in combination with a secondary fan assembly (14) and/ or an air scoop (24) to redirect air toward the motor (13, 25), to maint...  
WO/2008/061126A2
Methods and apparatus to lock a phase lock loop to a spindle motor (102) are disclosed. An example controller (104) comprises a counter (108) to determine a period of an operating signal received from a motor, an oscillator (114) to gene...  
WO/2008/048618A2
A device includes a housing configured with a working element. The device also includes a motor configured for urging motion of the working element. The device also includes a power control module which may be electrically connected with...  
WO/2008/046829A1
Method for determining the angular position of the rotor of a mechanically commutated DC servo motor (5), which is arranged in the transverse branch of a bridge circuit, and the armature current of which is preset by an electromechanical...  
WO/2008/048615A2
A device includes a housing configured with a working element. The device further includes a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is confi...  
WO/2008/043238A1
An H-bridge control system comprises a main control unit MCU (6), an H-bridge driver and protection circuit (1) for driving a motor, an H-bridge driving circuit (2) for driving the H-bridge driver, detecting units (3,4,5,8) for various d...  
WO/2008/041504A1
A small-sized electric actuator capable of controlling the position and movement speed of a rod by a simple structure. In the electric actuator (1), rotation of an electric motor (3) as the drive source is reduced in speed by a reduction...  
WO/2008/040644A1
The invention relates to a process for producing porous or foamed concrete mouldings reinforced with reinforcing means composed of, preferably, metal, in particular steel, which comprises the following process steps: a) use of at least o...  
WO/2008/039287A1
A self propelled upright vacuum cleaner (10) is provided with a Hall effect sensor (310) to provide a Hall voltage that varies according to the position of a handgrip (114) maintained by the vacuum cleaner (10). A microprocessor generate...  
WO/2008/037511A1
The invention relates to the control of an electrical load by means of a PWM load signal (I), generated based on a PWM control signal prepared for the above. Said PWM control signal is defined in a programmed manner, a measurement of the...  
WO/2008/035034A1
The invention provides motor driving apparatus (10) for a cleaning appliance (100) comprising a battery source (12) and a power controller (16). The battery source (12) is adapted and arranged to supply the power controller (16) with an ...  
WO/2008/036956A2
An integrated motor device with driver circuitry and method of setting and reading configuration parameters of the driver circuitry uses configuration data embedded in driver control signals to set at least one configuration parameter of...  
WO/2008/032435A1
When the number of bits of an error signal ERR 2 is n and the dimension thereof is a (a is an integer) in decimal notation, a pulse width modulator (14) generates a PWM signal Spwm as a set of consecutive k (k is an integer of 2 or more)...  
WO/2008/025236A1
A cable controller comprises a MCU for controlling a indicator light and a buzzer, sampling a fingerboard and managing the communication with a motor controller, a drive circuit for driving the indicator light and the buzzer, a cable com...  
WO/2008/025235A1
A motor control device and its control method, the motor control device comprises a MCU (2), driving circuits (3, 4) for driving a driver (8), remote device communicating modules (1,10) for communicating with a remote controller, a batte...  
WO/2008/025237A1
A motor control device and its control method, the motor control device comprises a MCU (2), driving circuits (5, 6) for driving a contactor (7), remote device communicating modules (1,10) for communicating with a remote controller. The ...  
WO/2008/027874A2
A current limiting DC motor starter (FIG 7a) employing a closed loop current measurement (58) to provide precise current control that adapts to changing motor conditions, integrated (104, 106) with a solid state reversing motor starter T...  
WO/2008/014112A2
A multi-phase electric motor comprises a stator comprising a plurality of wire coils surrounding a non-magnetizable core; a rotor with permanent magnets embedded therein, the rotor being disposed adjacent to the stator, the rotor being m...  
WO/2007/056370A3
A power tool includes solid-state motor control. The tool includes a solid state variable speed control signal generator for generating a variable speed control signal, a microcontroller for generating a pulse width modulated (PWM) signa...  
WO/2008/009679A1
The invention relates to a control for electrically adjustable furniture, comprising a mains voltage region (1) and a low voltage region (2), which are electrically separated. A rectifying power supply (10), arranged in the mains power r...  
WO/2008/009045A1
A multi-purpose drive system for a combustion engine, said drive system comprising: an AC motor adapted to drive the engine, a motor controller arranged for regulating at least one functional parameter of the motor and/or engine by contr...  
WO/2008/009827A2
Supply circuit (3) for an electric apparatus (1) having a positive supply line (5) and a negative supply line, to which lines a polarity inversion detection module (18), an inrush current module (18) and a capacitive filter element (14) ...  
WO/2008/006727A2
The invention relates to a circuit arrangement for measuring the current consumption of a pulse-width modulation controlled direct-current motor (M) fed by a direct voltage supply system (14,16), in particular a drive motor for a cooling...  
WO/2005/091943A3
A method for electrically isolating a portable, electrically-operated device, in which a converter module for converting electrical power from an external power source to a desired DC voltage for the device may be adapted to be removeabl...  
WO/2007/044930A3
A motor control module 100 designed to control operation of a plurality of different motors in a plurality of different tools. A power tool may be integrated with a switch. The control module may use an electronic clutch in the module 10...  
WO/2007/142127A1
It is possible to provide a control device and a control method which can improve the detection accuracy of the speed of a driven body and stably control drive means. An encoder signal control unit (25) compares the rise measurement time...  
WO2001054262A9
A motor control apparatus (52) for a reversible motor (54) of a railway switch machine includes a conditional power source (50) having an output voltage (96). A motor control circuit includes inputs (+, -) for inputting the voltage from ...  
WO/2007/137394A1
A method and apparatus is disclosed for controlling a system comprising at least one electric motor. The system includes aspects which permit, among other things, electromagnetically disconnecting a failed permanent magnet motor from sai...  
WO/2007/115907A3
The invention relates to a drive and evaluation unit for displacing a displacement object, particularly for raising and lowering a side window in a motor vehicle, comprising a commutator motor, a stator and two diametrically opposed perm...  
WO/2007/136422A1
Apparatus and associated systems and methods may relate to a process for supplying unidirectional current to a load, controlling a reverse electromotive force (REMF), capturing inductive energy from the load, and supplying the captured i...  
WO/2007/136953A2
An overload protection system and method of protecting a drive unit includes a torque arm assembly (12) mounted to a fixture (22) an a gear reducer (17). The reducer (17) includes a bracket (30) mounted to an axle of the reducer (17) whi...  
WO/2007/044913A3
A method varies motor torque inversely as a function of speed.  
WO/2007/115907A2
The invention relates to a drive and evaluation unit for displacing a displacement object, particularly for raising and lowering a side window in a motor vehicle, comprising a commutator motor, a stator and two diametrically opposed perm...  
WO/2006/096725A3
A motor vehicle seat adjuster includes a DC motor and a control system operably connected to the motor to control seat motion to a desired motion profile. Power to the motor is variable from less than 100% of normal power to greater than...  
WO/2007/117731A2
The disclosed system, device and method for an electric motor generally includes a hollow shaft having a first end and a second end. An electromagnet is coupled to the hollow shaft, where the electromagnet is suitably configured to emit ...  
WO/2007/081676A3
Systems and methods of detecting an overload condition. In one embodiment, a method of monitoring a load of a DC motor includes intermittently de-energizing the motor; monitoring a first voltage; and measuring a first interval of time be...  
WO/2006/125019A3
A hybrid vehicle propulsion system with a double-layer capacitor is provided. A low-voltage double-layer capacitor energy storage system provides power to a hybrid vehicle propulsion system. A converter boosts the voltage of the double-l...  
WO2006047826A9
A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower 6 is measured. The desired motor current I DES required for the actual speed to approach or mainta...  
WO/2007/103495A2
A circuit for indirectly measuring a sign of a current flowing in an inverter stage coupled to a phase of a motor or indirectly measuring the sign of the voltage induced by a counter Electromotive Force (EMF) in a coil of the phase of th...  
WO/2007/097069A1
For rotational speed control in one cycle operation of a printer, three-value control of ON control, OFF control, and chopper control is performed in place of a two-value control of ON control and OFF control. Therefore, even if the prin...  
WO/2007/098227A2
A power tool having an electronically commutated DC motor capable of providing various operating modes ranging from a maximum efficiency operating mode to a maximum power operating mode. The motor has a rotor having permanent magnets mou...  
WO/2007/002180A3
A powered surgical tool with a housing that contains a power generating unit such as a motor. A control module is disposed in a shell that is mounted in the housing. The control module contains a control circuit for regulating the actuat...  

Matches 401 - 450 out of 23,247