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US20130187586 Multi-Pole Switched Reluctance D.C. Motor with a Constant Air Gap and Recovery of Inductive Field Energy  
A Back EMF reducing DC motor system and method of operation are disclosed. The disclosed system and method are designed to exploit Transformer Voltage properties and include a rotor element shaped...
US20110169435 EC MOTOR ASSEMBLY  
The present invention relates to an EC motor assembly (1) having an electronically commutated, permanent magnet-excited DC motor (M) with an upstream commutation electronic unit (2) that is...
US20120060290 BRUSHLESS DC MOTOR BRAKING FOR A BARRIER FREE MEDICAL TABLE  
A braking action of movement of a support surface on an examination may be accomplished with a motor. The examination table includes a base, a support surface moveable with respect to the base,...
US20120249026 DC ELECTRIC FAN AND DRIVING SYSTEM THEREOF  
An embodiment of the invention provides a DC electric fan receiving a first direct current voltage. The DC electric fan includes a motor, a fan blade, a voltage converting device and a motor...
US20150077029 Electric Motor Control  
A drive system for a motor includes a drive stage, a control structure arranged to control operation of the drive stage to control drive current to the motor, and a sensor arranged to generate a...
US20110254477 BLOWER MOTOR FOR HVAC SYSTEMS  
A blower motor assembly having a variable speed motor that is suitable for replacing a PSC motor in a residential HVAC (heating, ventilation, and air conditioning) system. The blower motor...
US20070273309 RADIO-FREQUENCY CONTROLLED MOTORIZED ROLLER SHADE  
A roller shade structure controlled by radio-frequency (RF) wireless communication from a control device comprises a roller tube and a conductive enclosure. The conductive enclosure is mounted...
US20110221373 COMPUTER FAN ALARM CIRCUIT  
A circuit for alarming abnormal state of a computer fan includes a detection circuit coupled to the computer fan, a controller coupled to the detection circuit and the computer fan, an alarm unit...
US20110095716 MOTOR DRIVER FOR MACHINE TOOL WITH FAN MOTOR  
A motor driver for a machine tool, which comprises a fan motor, configured to drive a cooling fan for cooling a radiator or the interior of the motor driver, estimates a rate of heat release...
US20100314168 FLYWHEEL-BASED ENERGY STORAGE ON A HEAVE-COMPENSATING DRAWWORKS  
A system for managing energy consumption in a heave-compensating drawworks includes a power supply, a winch drum connected to the power supply so as to receive power from the power supply, a...
US20140333237 SHREDDER LOAD OPTIMIZATION SYSTEM AND METHOD  
An electrical power load optimization system operable to regulate a power supply to one or more industrial machines so that a load imposed on the power supply by the one or more machines is...
US20120153875 CONTROLLABLE TRANSVERSE ROTATION ADAPTOR  
Torsional loads can impart painful and potentially injurious shear stresses upon residual limb soft tissues in lower limb amputees. To protect the soft tissues, a controllable transverse rotation...
US20130026957 BALANCED CONFIGURATION RELAY DEVICE WITH IMPROVED PERFORMANCES  
A relay device includes: an electromagnet constituted by a metallic core and an electrical winding associated therewith; and a mobile anchor associated with a traction spring and suitable for...
US20110199033 Partial Regeneration In A Multi-Level Power Inverter  
In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are...
US20140260410 METHODS AND SYSTEMS FOR CONTROLLING POWER TO AN ELECTRIC MOTOR  
Methods and systems for controlling an electric motor are provided herein. The system is configured to be coupled to a power supply. The electric motor system includes a rectifier, an electric...
US20110247652 DEVICE AND METHOD FOR CONTROLLING AN ELECTRIC MOTOR  
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...
US20130009581 Motor Converter Circuit for an Electric Drive Motor and Electric Drive Device Having Such a Motor Converter Circuit  
An electric drive device (1) comprises a motor converter circuit (3) according to the invention, which includes an intermediate circuit capacitor (16). The intermediate circuit capacitor (16)...
US20140062347 ELECTRONIC FITNESS DEVICE  
An electronic fitness device is provided, the electronic fitness device including an enclosure having a cover, a motor positioned within the enclosure, a circuit board, a variable resistor...
US20110024212 Electric Powertrain System Having Bidirectional DC Generator  
An electric powertrain for use with an engine and a traction device is disclosed. The electric powertrain has a DC motor/generator operable to receive at least a portion of a first mechanical...
US20110050134 Series electric engine power drive  
The motor generator set is described where in the output from the motor driven generator is fed back to the input of the electric motor in series with the power from the battery, which energizes...
US20150077033 STEPPING MOTOR AND SYSTEM THEREOF  
A stepping motor includes a housing, a stator assembly, a rotor, and a sensor portion. The stator assembly is disposed inside the housing. The rotor is rotatably disposed inside the stator...
US20120068655 OUTPUT FILTER AND MOTOR DRIVE SYSTEM INCLUDING THE SAME  
A motor drive system includes: a three-phase motor; a power conversion device that supplies power for driving the three-phase motor; and an output filter that is arranged between an output of the...
US20130049664 Method of Automatically Controlling a Motorized Window Treatment While Minimizing Occupant Distractions  
A load control system provides for automatically controlling a position of a motorized window treatment to control the amount of sunlight entering a space of a building through a window located in...
US20110234128 POWER SUPPLY CIRCUIT AND MOTOR DEVICE  
A power supply circuit has an input terminal for electrically connecting to an active wire of an AC power supply, an earth terminal for electrically connecting to a neutral or ground wire of the...
US20090066279 Thin sensorless multiphase DC motor for rotating display unit  
A thin sensorless multiphase DC motor for rotating display unit comprises a flat stator, a flat magnetized rotor, an axle, a power source and multiphase electronic controller. The flat stator...
US20080083168 MOTOR SPEED SENSOR ASSEMBLY  
A drive assembly for a vehicle door is provided. The drive assembly includes a motor having a driving member. The drive assembly further includes a housing having a shaft rotatably received...
US20080258663 Brushed motor controller using back EMF for motor speed sensing, overload detection and pump shutdown, for bilge and other suitable pumps  
A method and apparatus are provided for providing one or more brushed motor control signals for controlling the operation of a brushed motor, including a signal for disconnecting the power applied...
US20130207577 WIPER DEVICE  
A wiper device is provided that suppresses plastic deformation of a blade rubber of a wiper blade without wasting power of a battery installed to a vehicle. A wiper device is equipped with wiper...
US20110260661 Brake Resistor Control  
An electric drive system comprises a generator, a traction motor, a brake resistor, a bus, and a control unit. The generator, the traction motor, and the brake resistor are coupled electrically to...
US20110304287 CONTROL CIRCUIT AND METHOD FOR MANIPULATING A POWER TOOL  
The present application discloses a control circuit for a power tool and a method for manipulating the power tool. The control circuit has a detection circuit for battery packs, a calculating...
US20120007535 INVERTER TYPE MOTOR DRIVE  
It is presented an inverter type motor drive device for feeding three phase AC electric power to an electric motor, the inverter type motor drive device comprising: an insulated metal substrate...
US20150069026 WELD HEAD  
A weld head for spot welding two or more components together. The weld head includes first and second electrode assemblies and a linear actuator motor to drive the first electrode assembly into a...
US20110163700 METHODS AND SYSTEMS RELATED TO DESULFATION OF A BATTERY  
Desulfation of a battery. At least some of the illustrative embodiments are methods of inducing ringing across terminals of a battery to reduce and/or reverse the build up sulfate crystals on the...
US20120242258 BRUSHLESS FAN MOTOR CONTROL CIRCUIT ASSEMBLY  
A brushless fan motor control circuit assembly consists of a high-frequency filter circuit, a rectifier circuit, a power factor enhancing circuit, a current-limit and voltage regulation circuit...
US20150180380 Control Methods and Systems for Motors and Generators Operating in a Stacked Configuration  
While motors or generators stacked in series may allow for higher operating voltages, such motors or generators may also exhibit instability. To minimize instability, the motors or generators may...
US20150180379 Control Methods and Systems for Motors and Generators Operating in a Stacked Configuration  
While motors or generators stacked in series may allow for higher operating voltages, such motors or generators may also exhibit instability. To minimize instability, the motors or generators may...
US20110084638 METHODS, SYSTEMS AND APPARATUS FOR DYNAMICALLY CONTROLLING AN ELECTRIC MOTOR THAT DRIVES AN OIL PUMP  
Methods, system and apparatus are provided for sensorless control of a vector controlled motor drive system that includes an electric motor used to drive an auxiliary oil pump.
US20130221877 Systems and Methods for Black Starting a Power Grid Using a Self-Starting Synchronous Condenser  
Systems and methods for black starting a power grid are described. A battery-powered configuration including, but not limited to, a motor, drive, and batteries can be coupled to a condenser which...
US20120293096 Power Tool and Battery Pack for Use Therein  
To prevent or suppress a secondary battery used in a power tool from being deteriorated, a battery property, such as internal resistance of the battery, and a battery status of the secondary...
US20130200831 POWER SUPPLY DEVICE  
A power supply device includes: an inverter that converts a DC power supplied from a battery pack into an AC power and outputs the AC power; and an adapter shapes a waveform of the AC power...
US20110043153 ELECTRONIC ORBIT CONTROL FOR SAWS  
A power saw having a reciprocating blade, including a housing having a handle portion for holding the saw; a variable speed motor in the housing for driving the reciprocating blade; a mechanism...
US20140247002 MOTOR ASSEMBLY WITH INTEGRATED ON/OFF DETECTION WITH SPEED PROFILE OPERATION  
A motor assembly coupled to an external alternating voltage input, the motor assembly comprising a motor including a stator and a rotor rotatable about a longitudinal axis. The motor assembly...
US20140117908 DYNAMICALLY MODIFIED FAN SPEED TABLE FOR COOLING A COMPUTER  
A computer-implemented fan control method includes measuring a temperature within a computer system and dynamically selecting a fan speed step in response to the temperature received, wherein the...
US20140333230 Device for recovering, storing and retrieving electricity for a handling door  
The device for recovering, storing and retrieving electricity from the decelerations of an electromechanical system such as a flexible curtain of a handling door is made up of a management...
US20130193891 PRECISION-FASTENING HANDHELD CORDLESS POWER TOOLS  
Cordless power tools include a pistol housing having an upper portion that merges into a downwardly extending handle, a DC motor residing in the upper portion of the housing, the DC motor having a...
US20140001993 Electric Power Tool  
An electric power tool includes: a brushless motor having a plurality of stator windings and configured to rotate in accordance with voltages applied to the plurality of stator windings, an...
US20140368136 REDUCING THE POWER CONSUMPTION OF A BRUSHLESS MOTOR  
A method of controlling a brushless motor. The method includes measuring a temperature of the motor, adjusting a control value in the event that the measured temperature is lower than a threshold,...
US20140239858 Movement control system for a drilling plant  
A movement control system for a drilling plant includes a first hydraulic circuit with an inlet duct and an outlet duct for a working fluid, a pumping device of reversible type promoting the...
US20140252999 CONTINUOUSLY VARIABLE DYNAMIC BRAKE FOR A LOCOMOTIVE  
This disclosure is directed to a traction motor drive system. The traction motor drive system may include a field winding subsystem comprising a field winding associated with a traction motor. The...
US20130152816 CONTINUOUSLY VARIABLE DYNAMIC BRAKE FOR A LOCOMOTIVE  
This disclosure is directed to a traction motor drive system. The traction motor drive system may include a field winding subsystem comprising a field winding associated with a traction motor. The...