Electricity: motive power systems inventions 04/08

20080094012 - Position feedback device for linear motor: A position feedback device for a linear motor utilizes Hall sensors which are properly positioned to induct the magnetic field variation of a linear motor and processing the inducted information with the OP amplifiers and signal level regulators to output Sine and Cosine differential signals.... Agent: Charles E. Baxley, Esq.

20080094013 - Electric vehicle system for charging and supplying electrical power: A power system that provides power between an energy storage device, an external charging-source/load, an onboard electrical power generator, and a vehicle drive shaft. The power system has at least one energy storage device electrically connected across a dc bus, at least one filter capacitor leg having at least one... Agent: Ut-battelle, LLC Office Of Intellectual Property

20080094014 - High precision positioning powered turntable and control method thereof: The invention relates to the field of material handling or logistic equipment, in particular, relates to turntables, which can be used especially for automation of production line, assembly assistance, linefeeding and synchronous manufacturing. A high precision positioning powered turntable and its controlling method are disclosed herewithin, based on slewing ring... Agent: Nelligan O'brien Payne LLP

20080094015 - System and method for universal adaptive torque control of permanent magnet motors: A system and method for controlling any of a variety of permanent magnet motors includes normalizing motor parameters with respect to demagnetization current of a motor and developing a torque-per-current relationship using the normalized motor parameters at approximately maximum torque. Using the developed torque-per-current relationship, it is possible to control... Agent: Rockwell Automation, Inc./(qb)

20080094016 - Wiper control device: Provided is a wiper control device. The device includes a first output IC, a direct driving switch, a second output IC, and an MCU. The first output IC supplies a power source for a wiper operation control in IG2 OFF state. The direct driving switch directly drives wipers. The second... Agent: Greenblum & Bernstein, P.L.C

20080094017 - 3-phase solar converter circuit and method: A conversion circuit for converting solar power into an alternating 3-phase maims (M) comprises a converter (conv) for converting the power from a solar cell (sc) into an unipolar converter output voltage provided between a first and a second converter output terminal of the converter, the converter having a constant... Agent: Philips Intellectual Property & Standards

20080094018 - Motor controlling method, motor controlling device, original reading apparatus, and storage medium having program stored thereon: A motor controlling method according to the present invention involves causing rotation of a motor to commence by applying an initial power that can cause movement of an object to be transported to commence, to the motor; obtaining a position of the object to be transported after the motor has... Agent: Sughrue Mion, PLLC

20080094019 - Bidirectional buck-boost power converters: A bidirectional buck-boost power converter 13 including a pair of inverter modules 14, 15 disposed at an output of a machine, and an inductor Lo connected between the pair of inverter modules 14, 15. A method for controlling a voltage output of a machine starter generator having an inverter rectifier... Agent: John M. Harrington

20080094020 - Bus disturbance regulator: Presented is a harmonic regulator that regulates a plurality of individual harmonics in a system having periodic torque disturbances to commanded values, including zero. For each harmonic being regulated, a feedback signal having at least one harmonic component due to the harmonic being regulated is transformed from a source reference... Agent: Reinhart Boerner Van Deuren P.C.

20080094021 - Mitigation of harmonic currents and conservation of power in non-linear load systems: An AC power controller system applies three-phase AC operating power to an induction motor that drives a non-linear mechanical load. A primary low pass filter is connected in series between branch phase conductors and a power controller of the type that uses gate-controlled switching thyristors for controlling power to the... Agent: Dennis T. Griggs

20080094022 - Insulation-resistance degradation detecting device for motors: An insulation-resistance degradation detecting device capable of selecting one of a plurality of motors and detecting its insulation-resistance degradation. A power source unit is connected with a plurality of motor drive amplifiers which drive two motors, individually. The motor is selected by selecting means, and a contactor S1 or S2... Agent: Staas & Halsey LLP

20080094023 - Method and apparatus for pwm control of voltage source inverter to minimize current sampling errors in electric drives: A method for controlling an alternating current (AC) motor includes choosing a pulse sequence based on a ripple current in the AC motor at a sampling instant; and providing a voltage to the AC motor based on the pulse sequence.... Agent: General Motors Corporation Legal Staff

20080088262 - Device and method for triggering a piezo actuator: A device and a method trigger a piezo actuator by use of a DC/DC converter supplying a supply voltage at the output end, the supply voltage is applied to a series connection encompassing a high-side switching transistor and a low-side switching transistor. A series connection containing a high inductance coil... Agent: Lerner Greenberg Stemer LLP

20080088263 - Fan voltage regulation control device: A fan voltage regulation control device includes a voltage regulation control unit for providing the power to a heat-dispersing fan, wherein the voltage regulation control unit is connected to a temperature detecting element and a voltage detecting unit. The temperature detecting element may influence the output power from the control... Agent: Birch Stewart Kolasch & Birch

20080088264 - Motor controller: A motor controller includes an inverter circuit, a speed detector, an amplifier, a voltage detector, and an offset voltage addition circuit. The inverter circuit drives a motor based on a PWM signal. The speed detector generates an actual speed signal corresponding to an actual speed of the motor. The amplifier... Agent: Posz Law Group, PLC

20080088265 - Method and arrangement for controlling the electricity supply of an electronically commutated motor: A control circuit (150) for controlling the current supplied to a winding strand (102) in an electric motor (143). The control circuit comprises at least one semiconductor switch (106) and a control unit (108) for controlling the semiconductor switch(es). Each semiconductor switch (106) is connected to a respective winding strand... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20080088266 - Hybrid electric device: 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 at least one of the motor, a first power source configuration and... Agent: Suiter Swantz PC Llo

20080088267 - Method for monitoring a drive device for a standstill condition, monitoring system therefore, and drive system therefore: In a method for monitoring a stationary condition of a drive device, a monitoring device provides the drive device with a temporally varying monitoring signal which, when a sensor device connected to the drive device functions properly, modulates a sensor output signal of the sensor device in accordance with the... Agent: Henry M Feiereisen, LLC

20080088268 - Fan motor drive device and cooler: A fan motor driving apparatus which can set the frequency of a cooling fan flexibly is provided. The fan motor driving apparatus drives a fan at the frequency based on the control voltage and the ambient temperature, thereby cooling a target CPU. The first control unit includes a thermostor and... Agent: Cantor Colburn, LLP

20080088269 - Motor controller: A motor controller capable of appropriately change the drive control condition in response to variations generated in motor drive control. The receiving circuit wirelessly receives and demodulates the control signal to controllably drive the motor and then outputs the demodulated signal to the motor controller. The current detection circuit detects... Agent: Quarles & Brady LLP

20080088270 - Three-in-one control device for a ceiling fan: A three-in-one control device for a ceiling fan includes a signal receiving module, which is able to receive segmented controlled signals, stepless controlled signals and wireless controlled signals respectively, for transmitting controlled signals to a micro computer control unit to process, analyze and code them. Then, the processed signals are... Agent: Bruce H. Troxell

20080088271 - Device of pulse width modulation type for load drive: A device of pulse width modulation type for load drive according to the present invention includes a first output unit (3) that applies a first output signal (e) to a load (5) in response to a first drive timing signal (c), a second output unit (4) that applies a second... Agent: Steptoe & Johnson LLP

20080084171 - Method and apparatus for controlling motors of different types: In order to reduce the time and expense of designing and operating a motor control system with multiple motors of different types, a motor control system is provided with motor control modules that monitor and record status information and update settings in a uniform manner regardless of the motor type... Agent: Hamilton, Brook, Smith & Reynolds, P.c.

20080084172 - Dc motor mechanical shock protection system: A DC motor mechanical shock protection system monitors the motor current to determine the torque the motor is applying to the gearbox, and takes mitigating action if the torque approaches a level that can damage the driven device and/or the drive system. This protects the system from mechanical shock without... Agent: Schneider Electric / Square D Company Legal Dept. - I.p. Group (np)

20080084173 - Hvac actuator having torque compensation: A method and system are disclosed for adjusting the torque of a motor for a HVAC actuator based upon one or more operating conditions of the HVAC actuator. One illustrative HVAC actuator includes an actuated part, a motor for providing a torque to move the actuated part, a detector for... Agent: Honeywell International Inc.

20080084175 - Dynamic balancing mobile robot: A mobile robot having a height-to-width ratio approximating a normal adult human balances and maneuvers atop a single, spherical wheel. Dynamic balancing techniques incorporating fiber-optic gyroscopes and micro-electromechanical accelerometers measure a number of parameters which, along with data from motor shaft encoders, enable a computer to calculate the forces needed... Agent: Jones Day

20080084174 - Robot confinement: A method of confining a robot in a work space includes providing a portable barrier signal transmitting device including a primary emitter emitting a confinement beam primarily along an axis defining a directed barrier. A mobile robot including a detector, a drive motor and a control unit controlling the drive... Agent: Fish & Richardson P.c.

20080084176 - Microstepper motor device and method of controlling the device: A microstepper motor device and method of controlling the device uses a microcontroller that provides current sinusoidal values from at least one array of sinusoidal values to power circuitry of the device in response to control signals. The power circuitry is connected to a stepper motor of the device to... Agent: Wilson & Ham Pmb: 348

20080079373 - Electric braking of machinery with a plurality of inverter-fed motors: A system and method are provided whereby at least two motors driven by an inverter coupled to a DC bus are configured to alternate between regenerative and injection braking such that at least one motor is placed in regenerative braking mode and at least one motor is placed in motoring... Agent: Thompson Coburn, LLP

20080079374 - Motor vehicle: A system and method for operating an electrical supply network are disclosed. An exemplary embodiment couples a vehicle to the supply network, receives a trigger to cause a partial discharge of an electrical energy storage device of the vehicle into electric power network, and discharges electrical energy into the electric... Agent: Seed Intellectual Property Law Group PLLC

20080079375 - Rotary electric apparatus having rotor with field winding inducing current therethrough for generating magnetic field: A rotary electric apparatus comprise a synchronous machine of field winding type, an inverter, a DC power supply, a current flow regulator, and a controller. The DC power supply outputs first voltage of a first voltage value and second voltage of a second voltage value higher than the first voltage... Agent: Nixon & Vanderhye, PC

20080079376 - Discharge volume control method, discharge pressure control method, injecting apparatus, microbody forming method, discharge volume control device, and computer product: A second valve is opened to combine an injection-pressure generating pressure with a maintaining pressure into an injection pressure. After the injection pressure is applied to a capillary to cause discharge of an object therefrom, an output pressure of a regulator is set to the injection pressure. Then, a first... Agent: Staas & Halsey LLP

20080079377 - Motor drive control with a single current sensor using space vector technique: A drive system for a three phase brushless AC motor is arranged to optimize the transistor switching pattern to improve power output whilst allowing current measurement in all of the phases using a single sensor. This is achieved by defining voltage demand vectors x where more than two states are... Agent: Macmillan, Sobanski & Todd, LLC

20080079378 - Controller and constant measuring apparatus for ac motor: A controller and a constant measuring apparatus have a means for supplying a synthesized current, resulting from superimposing an AC current to a DC current, from an inverter and for changing the DC current component of the synthesized current continuously or discontinuously. Accordingly, the controller and constant measuring apparatus can... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080079379 - System and method for controlling anti-pinch powered windows: A system and method for an anti-pinch powered window system includes a window and a mechanical drive mechanism for raising and lowering the window. An electric motor drives the mechanical drive mechanism responsive to a command. A microcontroller unit generates the command responsive to a measured load current of the... Agent: Howison & Arnott, L.l.p

20080079380 - Method for the detection of the rotational position of the rotor of a dc motor with commutator: In a method for the detection of the rotational position of the rotor of a DC motor with commutator by evaluating the time development of a rotor current signal of the DC motor, said signal comprising a periodic waviness around an average value and comprising current ripples generated by commutation... Agent: Shumaker & Sieffert, P. A.

20080079381 - Motor balanced active user interface assembly: An active user interface assembly includes a user interface, and one or more feedback motors coupled to the user interface. The one or more feedback motors, when energized, supply a feedback force to the user interface that opposes user interface movement. One of the feedback motors is disposed such that... Agent: Honeywell International Inc.

20080079382 - Robot control apparatus comprising a servo amplifier having an ac/dc converter: A robot control apparatus comprises a servo amplifier having an AC/DC converter and used for driving a servo motor of a robot, and performs control so that power for driving the robot is supplied to the servo amplifier through a capacitor inrush current preventing resistor until precharging of a capacitor... Agent: Drinker Biddle & Reath (dc)

20080079383 - Method of controlling movement of robot, mobile robot, and computer program product: A method of controlling movement of a robot, the method includes detecting a target person to be followed, following detected target person, detecting an environment of a current position around the robot while following the detected target person, determining whether detected environment satisfies a predetermined target-point condition, specifying the current... Agent: Nixon & Vanderhye, PC

20080079384 - Apparatus, method, and system for controlling stepping motor: A stepping motor controller that alleviates the CPU burden of motor control tasks. An acceleration control starter initializes a pointer register with a given start angle address upon receipt of a control start signal. Duty cycles for different motor angles are previously calculated and stored in a duty cycle memory.... Agent: Arent Fox LLP

20080079385 - Motor control device: A motor control device includes a current detecting portion that detects phase current of one phase among three phase currents supplied from an inverter to a motor, and a current estimator that estimates phase current of phases other than the detected phase current by using a specified current value indicating... Agent: Ditthavong Mori & Steiner, P.C.