Featured patents

Switch Mode Power Supply Device
US 08787046 B2, July 22, 2014, With starting arrangement, Wen-Cheng Hsieh / Delta Electronics, Inc. (Taoyuan Hsien, TW)
A power supply device, comprising:…

Capacitor Based AC to DC Step Up Converter
US 08797771 B1, Aug. 5, 2014, For rectifying, Edward K. F. Lee / Alfred E. Mann Foundation for Scientific Research (Santa Clarita, US)
A timing controlled capacitor based AC-DC step-up converter configured to supply…

Method and Apparatus for a Control Circuit With Multiple Operating Modes
US 08767414 B2, July 1, 2014, Having transistorized inverter, Stefan Bäurle et al. / Power Integrations, Inc. (San Jose, US)
A controller for use in a power converter, the controller comprising:…

Electronically Isolated Method for an Auto Transformer 12-Pulse Rectification Scheme Suitable for Use With Variable Frequency Drives
US 08737097 B1, May 27, 2014, Plural rectifiers, Mahesh M. Swamy / Yaskawa America, Inc. (Waukegan, US)
An AC/DC converter system comprising:…

Power Converter Module
US 08687393 B2, April 1, 2014, For inverter, Ching-Yuan Lin et al. / Inno-Tech Co., Ltd. (Taipei, TW)
A power converter module, comprising:…

Isolated DC-DC Converter With Active Clamp Circuit
US 08670247 B2, March 11, 2014, For forward-type converter, Tomoyuki Mase et al. / Kabushiki Kaisha Toyota Jidoshokki (Aichi-Ken, JP)
An isolated DC-DC converter, comprising:…

Flyback Boost Circuit With Current Supplied to Secondary Side of Transformer Circuit Prior to Boost Operation and Strobe Device Using the Same
US 08619439 B2, Dec. 31, 2013, For flyback-type converter, Katsuya Ikezawa et al. / Sony Corporation (Tokyo, JP)
A flyback boost circuit comprising:…

Control Circuit for a Primary Controlled Switched Mode Power Supply With Improved Accuracy of the Voltage Control and Primary Controlled Switched Mode Power Supply
US 08582323 B2, Nov. 12, 2013, For flyback-type converter, Rüdiger Malsch et al. / Flextronics AP, LLC (Broomfield, US)
A controller for a primary-side regulated control power supply unit, comprising:…

Method and Device for Determining a Control Scheme for an Active Power Filter
US 08570776 B2, Oct. 29, 2013, In inverter systems, Per Ranstad et al. / ALSTOM Technology Ltd (Baden, CH)
A method for determining a control scheme for a neutral point clamped (NPC)…

Single-Stage Power Supply With Power Factor Correction and Constant Current Output
US 08537582 B2, Sept. 17, 2013, With transistor control means in the line circuit, Roland S. Saint-Pierre / Power Integrations, Inc. (San Jose, US)
A method of providing power factor correction and a constant current output…

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