Featured patents

Driving Circuit for Low Voltage Drop Bridge Rectifier and Method Thereof
US 08797775 B2, Aug. 5, 2014, Diode, Changjiang Chen et al. / Chengdu Monolithic Power Systems Co., Ltd. (Chengdu, CN)
A circuit, comprising:…

Optimizing Isolated Power Supply Loop Gains for Opto-Coupler Current Transfer Ratio Variations
US 08804378 B2, Aug. 12, 2014, Having feedback isolation, Jonathan Ross Bernardo Fauni et al. / Astec International Limited (Kwun Tong, Kowloon, HK)
A method of optimizing a gain adjustment value Kadj for a digital controller…

Active Rectification Control
US 08804388 B2, Aug. 12, 2014, With transistor control means in the line circuit, Souren G. Fattal / Hamilton Sundstrand Corporation (Windsor Locks, US)
An active rectification system, comprising:…

Regulating Output Characteristics of Static Energy Supply Units
US 08861239 B2, Oct. 14, 2014, In transistor inverter systems, Eric Anthony Lewis / GE Energy Power Conversion Technology Limited (Rugby, Warwickshire, GB)
A method of controlling the operation of a static energy supply unit connected…

Interface Arrangement Between AC and DC Systems Using Grounding Switch
US 08767422 B2, July 1, 2014, For high voltage D.C. transmission systems, Baoliang Sheng et al. / ABB Technology AG (Zurich, CH)
An interface arrangement for connection between an AC system and a DC system…

Electric Generating System With a Controller Controlling a Snubber Device
US 08755202 B2, June 17, 2014, For flyback-type converter, Doo Young Song et al. / Samsung Electro-Mechanics Co., Ltd. (Gyunggi-Do, KR)
An electric generating system using a solar cell, comprising:…

Power Supply Device
US 08711588 B1, April 29, 2014, Having plural converters for single conversion, In Wha Jeong et al. / Samsung Electro-Mechanics Co., Ltd. (Suwon, Gyunggi-Do, KR)
A power supply device, comprising:…

DC-DC Converter Including Switching Frequency Control Circuit
US 08634210 B2, Jan. 21, 2014, With automatic control of the magnitude of output voltage or current, Jun Nagai et al. / Murata Manufacturing Co., Ltd. (Kyoto, JP)
A DC-DC converter comprising:…

DC-DC Converter
US 08564988 B2, Oct. 22, 2013, With voltage division by storage type impedance, Toshihiro Tamitsuji / Minebea Co., Ltd. (Nagano, JP)
A DC-DC converter, which is configured to step down a direct current voltage…

Illumination Lighting Device, Discharge Lamp Lighting Device, and Vehicle Headlamp Lighting Device Using Same
US 08482940 B2, July 9, 2013, For flyback-type converter, Toshiaki Nakamura / Panasonic Corporation (Osaka, JP)
An illumination lighting device, comprising:…

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