Featured patents

AC-to-DC Power Converting Device
US 08854839 B2, Oct. 7, 2014, For resonant-type converter, Kun-Jheng Lin et al. / I Shou University (Kaohsiung, TW)
A power converting device for converting an AC input voltage supplied by…

Methods of Balancing Reactive Power in Multi-Level Motor Drives With Active Front Ends
US 08804381 B2, Aug. 12, 2014, By semiconductor rectifier and inverter, John Channing Bousfield, III / Siemens Industry, Inc. (Alpharetta, US)
A method of balancing reactive power at a power delivery system, comprising:…

Frequency Multiplier
US 08760899 B1, June 24, 2014, Transistor type, Srinath M. Ramaswamy et al. / Texas Instruments Incorporated (Dallas, US)
An apparatus comprising:…

Method of Adapting a Configuration of a Voltage Converting Device and Voltage Converting Unit for a Voltage Converting Device
US 08750000 B2, June 10, 2014, Plural inverters, Rodney Jones / Siemens Aktiengesellschaft (München, DE)
A method of adapting a configuration of a voltage converting device, the voltage…

Multilevel Inverter
US 08649197 B2, Feb. 11, 2014, For bridge-type inverter, Kazuya Abe / Sharp Kabushiki Kaisha (Osaka, JP)
A multilevel inverter comprising:…

Radiation Hardened Motor Drive Stage
US 08605466 B2, Dec. 10, 2013, For flyback-type converter, Steven E. Summer
A radiation hardened motor drive stage, comprising:…

Systems and Methods for High Speed Power Factor Correction
US 08542503 B2, Sept. 24, 2013, With means to introduce or eliminate frequency components, Robert Stephen Wrathall
A method for performing power factor correction on a signal having a fundamental…

Inverter and Method for Operating the Inverter
US 08508965 B2, Aug. 13, 2013, Bridge type, Jalal Hallak / Siemens Aktiengesellschaft (Müchen, DE)
An inverter for converting a DC input voltage to an AC output voltage,…

Power Supply Apparatus and Image Forming Apparatus
US 08503197 B2, Aug. 6, 2013, Having feedback winding inductively coupled to inverter inductive device, Minoru Hayasaki et al. / Canon Kabushiki Kaisha (Tokyo, JP)
A power supply apparatus for converting an alternating voltage source to a direct…

DC/AC Chopper Type Power Converter for Non-Insulated Type Power Conditioner With Gain Calibration of Measuring Circuit
US 08462526 B2, June 11, 2013, In chopper converter systems, Masao Mabuchi et al. / OMRON Corporation (Kyoto, JP)
A power converter comprising:…

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