Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 451 - 500 out of 22,633

Document Document Title
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/2008/032880A1
When a trigger switch 5 is changed from one switch status (OFF) to another switch status (ON), a controller 50 provides a motor 6 with electric power from a battery pack 7, to thus drive the motor 6. Further, in a case where both the tri...  
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...  
WO/2007/084911A2
Methods and devices for determining position and/or angular orientation of a rotating shaft (112). Exemplary features include sensor module (120/340) and position determination module (335). Sensor module (120/340) may include Hall Effec...  
WO/2007/081676A2
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/2007/074103A1
The present invention relates to a control method and a washing machine (1) thereof comprising a motor (2) with a common terminal (C) which facilitates the usage of the whole coil (6) during the washing process and only a part of the coi...  
WO/2007/071520A1
The invention relates to a method and a device for controlling and/or regulating an electric motor. Such electric motors are used, for example, in motor vehicles, as pump motors. The electric motor is generally provided with electrical p...  
WO/2007/070932A1
A method of tuning a DC brushless motor, wherein measurement of back EMF voltage is used to detect changes in the torque requirements caused by variation in the operating conditions of the DC brushless motor, the method including varying...  
WO/2007/070814A2
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/2007/068711A1
The field of the invention is that of safety devices for operating the actuators of aircraft and more specifically the flight control actuators of a helicopter. The invention consists of a safety operating device for controlling an actua...  
WO/2007/066625A1
A drive signal generation circuit (1) generates drive signals SDH, SDL for controlling ON/OFF of a transistor of an H-bridge circuit (110) in accordance with a torque target value. According to the drive signals SDH, SDL outputted from t...  
WO/2007/063040A1
In order to prevent the vehicle battery from being discharged completely in the event of a faulty signal line (7) between an external signal source (8, 9) and a cooling fan (1) for a motor vehicle, it is proposed that a duplicated evalua...  
WO2007006482A8
The invention describes a circuit arrangement for actuating an electric motor in a motor vehicle, having two relays which each have a changeover contact, with the changeover contacts forming a bridge circuit for connecting the motor conn...  
WO/2007/037692A3
The invention relates to a regulator circuit for controlling the power fed to an electric motor from a voltage source, wherein the regulator circuit comprises a semiconductor switching element connected in series to the electric motor an...  
WO/2007/056255A2
A battery-powered tool (100) indicates to an operator that a torque limit has been reached. The tool comprises a driver circuit (312) for generating motor interface driving signals, a motor interface circuit (314) coupled to a motor (316...  
WO/2007/056370A2
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/2007/046120A1
The present patent application refers to an actuator for automotive climatization units, of the type designed to be driven by an electric control unit with direct current and low voltage, characterised in that it is provided with an elec...  

Matches 451 - 500 out of 22,633