Featured patents

Control Circuit for an Electric Fan for Motor Vehicles
US 08829842 B2, Sept. 9, 2014, Voltage control, Pierfranco Pangella et al. / Johnson Electric S.A. (Murten, CH)
A control circuit for an electric fan having a D.C. motor with brushes for use…

System and Method for Detecting Phase Loss and Diagnosing DC Link Capacitor Health in an Adjustable Speed Drive
US 08796982 B2, Aug. 5, 2014, With armature power removal upon failure to synchronize or loss of synchronism, Huaqiang Li / Eaton Corporation (Cleveland, US)
A system for detecting input phase loss in an adjustable speed drive (ASD)…

Motor Drive Component Verification System and Method
US 08710780 B2, April 29, 2014, Having protection means, Stephen E. Denning et al. / Rockwell Automation Technologies, Inc. (Mayfield Heights, US)
A motor drive comprising:…

Linear Actuator
US 08716960 B2, May 6, 2014, Linear-Movement Motors, Mario Rossi et al. / Aktiebolaget SKF (Gothenburg, SE)
A linear actuator comprising an electrical motor, a transmission, a spindle,…

Blade Pitch Controlling Drive for a Wind Turbine
US 08723465 B2, May 13, 2014, Limitation of Motor Load, Current, Torque or Force, Hermann Kestermann et al. / SSB Wind Systems GmbH & Co. KG (Salzbergen, DE)
A blade pitch controlling drive for a wind turbine comprising:…

Robot Confinement
US 08686679 B2, April 1, 2014, Program- or pattern-controlled systems, Joseph L. Jones et al. / iRobot Corporation (Bedford, US)
A robot navigation system, comprising:…

Motor Control Apparatus
US 08633664 B2, Jan. 21, 2014, Current or voltage limiting, Go Endoh / Denso Corporation (Kariya, JP)
A motor control apparatus for a motor having phase windings in correspondence…

Electric Power Converter, Driving Apparatus and Electric Power Steering Apparatus
US 08604730 B2, Dec. 10, 2013, Vector control, Takashi Suzuki / Denso Corporation (Kariya, JP)
An electric power converter for a three-phase rotary electric machine,…

Current Injection Circuit for Delaying the Full Operation of a Power Factor Control Circuit for AC Induction Motors
US 08575881 B2, Nov. 5, 2013, Power-factor control, Gordon E. Hiltbold / Energy Innovative Products, Inc. (Fairfield, US)
An energy saver delay circuit for an induction motor, comprising: a power factor…

Motor Controller and Electric Power Steering System
US 08471504 B2, June 25, 2013, Vector control, Shigeki Nagase et al. / JTEKT Corporation (Osaka-shi, JP)
A motor controller configured to drive a brushless motor, said motor controller…

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