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US20090251090 |
DRIVE SYSTEM FOR ELECTRICALLY DRIVEN DUMP TRUCK
A drive system for an electrically driven dump truck is capable of preventing a prime mover from stalling and is also capable of enabling electric motors for traveling to make full use of the...
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US20110181221 |
MOTOR
A motor includes a sensor magnet having a non-circular contour and a magnet cover fixed to an end portion of a shaft to cover the end portion of the shaft. The magnet cover includes a support...
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US20110031922 |
ELECTRIC MOTOR DRIVE DEVICE, CONTROL METHOD OF ELECTRIC MOTOR DRIVE DEVICE, AND ELECTRICALLY DRIVEN DEVICE
An electric motor drive device has an inverter adjusting the voltage applied to an AC electric motor so as to drive the AC electric motor, a capacitor which is charged by a current supplied from a...
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US20110169433 |
SERVOMOTOR SYSTEM WITH INTEGRATED BRAKE CONTROL
A servomotor system is provided. The servomotor system includes an enclosure and a motor stator and rotor disposed in the enclosure. The servomotor system also includes a motor brake disposed in...
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US20130082045 |
Dissipation of the Braking Energy of Electrically Powered Mining Equipment by Liquid-Cooled Braking Resistors
Braking current generated by an electrical motor on mining equipment during a retard interval is switched through one or more grid resistors that are liquid cooled. Under low ambient temperatures,...
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US20130088361 |
SENSOR COMMUATED ELECTRIC MOTOR WITH SENSORLESS ANGULAR POSITION DETERMINATION AND METHOD
An electric motor assembly, mud pulser and a method for transmitting data. The electric motor assembly includes an electric motor having a rotor and a stator that includes one or more windings; one...
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US20130099704 |
Motor Control Circuit And Method That Reduce Speed Jitter Of An Electric Motor
Motor control circuits and associated methods to control an electric motor provide a plurality of drive signal channels at the same phase, resulting in reduced jitter in the rotational speed of the...
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US20130002186 |
POWER CONVERTER
Provided is a power converter that is capable of ensuring a conduction current without expanding the configuration of a DC voltage conversion circuit such as a DC chopper. Power can be supplied...
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US20110273124 |
LOW COST BLENDER CONTROL PERMITTING LOW ACTUATION FORCE SWITCHES
A control circuit for a blender provides low-cost power conditioning through the use of a high resistance which provides temporary power for operation of low-voltage logic circuitry and low-voltage...
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US20120268045 |
METHOD AND APPARATUS FOR BRAKING AN ELECTRIC MOTOR
The invention provides a method and apparatus for braking an electric motor. The apparatus includes an electric motor, an electric generator, and an electrical circuit arrangement capable of...
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US20130119909 |
METHOD OF DETECTING AN OFF-BALANCE CONDITION OF A CLOTHES LOAD IN A WASHING MACHINE
An off-balance detection method comprises a plurality of off-balance detection schemes that utilize wash basket speed to detect an off-balance load condition at speed ranges that span the entire...
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US20120032621 |
BRUSHLESS MOTOR DRIVE CIRCUIT AND BRUSHLESS MOTOR DRIVE SYSTEM
A brushless motor drive circuit has a first AD converter which converts a voltage value depending upon a power supply voltage supplied from a power supply to drive a three-phase brushless motor, to...
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US20050234594 |
Self-running cleaner
A self-running cleaner that can be operated longer at reduced cost includes a cleaning unit for suction of dust and dirt, a storage battery supplying power consumed by the cleaning unit, a solar...
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US20120161682 |
RETROFIT MOTOR SYSTEM FOR HEATING, VENTILATION, AND AIR CONDITIONING APPLICATIONS
A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM)...
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US20120293104 |
MOTOR CONTROLLER HAVING INTEGRATED COMMUNICATIONS CONFIGURATIONS
A motor drive is provided that includes a control circuit or board and a one or more functional circuits or option boards coupled to the control board, and a profile that includes a configuration...
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US20110199039 |
Fractional boost system
A fractional boost system including a boost converter, responsive to the base level voltage of a power supply, for providing a boost level voltage to a load and a control system for sensing the...
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US20110309778 |
Power converting device with reduced switching loss
A power converting device is disclosed that can reduce switching loss occurring in a voltage source inverter that drives an AC motor. It is possible to supply DC power to the voltage source...
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US20120217917 |
METHOD AND DEVICE FOR CONTROLLING AN ELECTRIC MOTOR
A method and device for controlling an electric motor, in particular a machine tool drive, wherein during a sensorless open-loop control mode of operation of the electric motor the speed and the...
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US20060186853 |
Method for identifying the rotation of a stepper motor driving at least one hand of a clock
In a method for identifying the rotation of a stepper motor which includes a rotor provided with a motor coil driving at least one hand of a timepiece, wherein a drive voltage pulse and a first...
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US20130099706 |
Motor Control Circuit And Method That Synchronize A Speed Of An Electric Motor To An External Clock Signal
Motor control circuits and associated methods to control an electric motor provide an ability to synchronize a rotational speed of the electric motor with an external clock signal, resulting in...
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US20110260666 |
BLOWER MOTOR FOR HVAC SYSTEMS
A blower motor assembly having a variable speed motor that is suitable for direct, drop-in replacement in a residential HVAC (heating, ventilation, and air conditioning) system that employs a PSC...
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US20110109256 |
FIBER OPTICALLY COMMUNICATED MOTOR TEMPERATURE AND POSITION SIGNALS
Methods and apparatus are provided for a controlling an electric motor that is at least partially disposed within a motor housing. The rotational speed and position of the electric motor are...
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US20110273123 |
POWER SUPPLY SYSTEM AND METHOD FOR CONTROLLING A MECHANICALLY COMMUTATED ELECTRIC MOTOR
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...
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US20110002792 |
CONTROLLER FOR A MOTOR AND A METHOD OF CONTROLLING THE MOTOR
A pumping apparatus for a jetted-fluid system includes a pump having an inlet connectable to the drain, and an outlet connectable to the return. The pump is adapted to receive the fluid from the...
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US20130063065 |
AUTOMATED SHADE CONTROL SYSTEM UTILIZING BRIGHTNESS MODELING
Automated shade systems comprise motorized window coverings, sensors, and controllers that use algorithms to control operation of the automated shade control system. These algorithms may include...
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US20110266982 |
MOTOR CONTROL
A system includes a power supply output sensor that senses an output level of a power supply during active motor control of a motor using the power supply and generates a signal indicative thereof....
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US20110248655 |
Switched-Mode Power Supply
A switched-mode power supply comprises a first rectifier circuit configured to generate a first rectified voltage from an AC input voltage. An inverter generates a second AC voltage from the first...
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US20110031424 |
HIGH ACCURACY, ZERO BACKLASH ROTARY-TO-LINEAR ELECTROMECHANICAL ACTUATOR
An electromechanical actuator is provided for converting rotary action into linear action, and includes an electric motor, a cable yoke, an output shaft, and a pair of cables. The electric motor is...
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US20110025247 |
METHOD AND SYSTEM FOR TESTING ELECTRIC MOTORS
Method and systems for testing an electric motor are provided. A switching circuit coupled to the motor is operated in a first mode causing current to flow through the motor such that the motor is...
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US20060055273 |
Screening assay based on rhe sod-3 promotor for the identification of compounds modulating akt or upstream regulators such as insulin igf-1 receptors
A traction system for lifts, escalators, moving walkways and aerogenerators, provided with an asynchronous motor with squirrel cage rotor with low start-up current and high performance, and an...
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US20130099709 |
Circuit Protection Method and Motor Control Circuit
A circuit protection method for a motor control circuit includes determining whether the motor control circuit complies with an operating condition when the motor control circuit is in a start...
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US20120139466 |
Micro Motor
A thinly configured and brushless miniature DC micro motor that includes at least two substantially-flat motor cells that are aligned axially. Each motor cell comprises a stator coil having an...
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US20130113438 |
Power Tool
A power tool including: a motor configured to be rotated by a lithium-ion secondary battery; an end tool configured to be driven by the rotation of the motor; and a switch configured to cause power...
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US20090278486 |
Motor Controlling Method for Rotating a Lift Arm of an Adjustable Bed according to a Predetermined Bending Angle of the Lift Arm
In an adjustable bed, a bending angle of a lift arm is precisely adjusted according to generated signals corresponding to a wheel rotated by a motor of the adjustable bed or according to a current...
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US20110199037 |
POWER SUPPLY AND CONTROL UNIT, PARTICULARLY FOR SUBMERSED ELECTRIC MOTORS
A power supply and control unit for submersed electric motors includes an enclosure which is jointly connected to the motor of a submersed electric pump and forms a hermetic chamber that contains...
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US20120111065 |
WASHING MACHINE WITH IMPROVED BRAKING METHOD
A method of braking a washing machine from an operational speed to a zero speed is provided (as well as a washing machine incorporating the method) for a washing machine driven by one of a...
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US20050146305 |
Converter system, method, and converter
A converter system and method, including: at least one supply module, which provides a unipolar, intermediate circuit voltage; one or more drive modules, which may be powered from the intermediate...
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US20110163704 |
METHOD AND APPARATUS FOR MONITORING A SYSTEM INCLUDING A SENSORLESS ELECTRIC MOTOR
A multiphase alternating current permanent magnet synchronous electric motor is coupled to an actuator. A sensorless electric motor drive control system controls operation of the electric motor. An...
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US20090261772 |
Advanced method for stepper motor speed determination
A method and apparatus for determining speed of a stepper motor. In one embodiment of the method, a first terminal of a first coil of the stepper motor is coupled to an input of a multibit...
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US20120319635 |
METHOD AND CIRCUIT FOR CONTROLLING MOTORS
A method for controlling a motor comprises steps of: first, determining whether a switch of a motor control circuit in an electronic system is in a first state; then, operating the motor at a...
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US20100033119 |
RETROFIT MOTOR SYSTEM FOR HEATING, VENTILATION, AND AIR CONDITIONING APPLICATIONS
A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM)...
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US20120120008 |
VIBRATING MOTOR AND ELECTRONIC DEVICE
Provided are a vibrating motor with long life wherein vibration of the vibrating motor can be converged instantaneously, and an electronic device. Upon receiving an input signal from the operating...
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US20090218971 |
PHASE LOGIC CIRCUITS FOR CONTROLLING MOTORS
Circuitry for controlling motors, such as a brushless motor (BLM), is disclosed. The circuitry may comprise one or more inputs for receiving rotor position signals from one or more Hall effect...
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US20120326648 |
FAN DELAY CONTROL CIRCUIT
A fan delay control circuit includes a fan connector connected to a fan of an electronic device, a power supplying module connected to the fan connector, and a rotational speed controlling module...
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US20130049667 |
ADJUSTABLE SPEED FAN
A fan includes blades, a motor, a bracket fixing the motor, a fan connector, a resistor unit, and a switch unit. The fan connector, the resistor unit, and the switch unit are configured to control...
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US20120187887 |
POWER UNIT FOR ELECTRIC VEHICLE
A power unit for an electric vehicle includes: a first power source connected between a first node and a second node; a first switch connected between the second node and a third node; a second...
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US20100308648 |
Buoyant Harbor Power Supply
At least one embodiment of the invention relates to supplying ships in a harbor with external energy in order to prevent the formation of soot and CO2. For this purpose it is already known to...
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US20080031024 |
Method in connection with network converter, and network converter
A method in connection with a network converter, and a network converter, the network converter comprising two or more network converter modules coupled in parallel, and first control means for...
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US20130093367 |
METHOD AND DEVICE FOR ACTUATING AN ELECTRIC MACHINE IN THE MOTOR STARTING MODE
The present invention relates to a method (30) for actuating an electric machine (14) in the motor starting mode by means of a power electronic system (10), in particular for application in a motor...
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US20120069316 |
METHODS FOR LIMITING COUNTER-MASS TRIM-MOTOR FORCE AND STAGE ASSEMBLIES INCORPORATING SAME
An exemplary stage assembly has movable stage mass and counter-mass. A stage motor is coupled to the stage mass and counter-mass such that stage-mass motion imparted by the stage motor causes a...
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