Featured patents

Power Converter
US 08830704 B2, Sept. 9, 2014, By semiconductor rectifier and inverter, Toshiaki Satou / Daikin Industries, Ltd. (Osaka-shi, JP)
A power converter comprising:…

Power Supply Apparatus With Drive Control Signal Inversion Based Upon Resonance Current Level Detection
US 08873257 B2, Oct. 28, 2014, Having current protection, Tomonori Tsuchiyama / Sony Corporation (Tokyo, JP)
A switching power supply apparatus, comprising:…

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

Electrical Supply Apparatus
US 08717790 B2, May 6, 2014, With inductive control means in the line circuit, Trong Tran / Diehl Aerospace GmbH (Ueberlingen, DE)
An electrical supply apparatus…

Varying Switching Frequency and Period of a Power Supply Controller
US 08611116 B2, Dec. 17, 2013, Cooperating separate sensing and control means, Arthur B. Odell et al. / Power Integrations, Inc. (San Jose, US)
An integrated circuit controller for use in a switching power supply,…

Buck-Boost Rectifier, Refrigeration System Including a Buck-Boost Rectifier, and Method of Providing Power to a Refrigeration Unit via a Buck-Boost Rectifier
US 08605472 B2, Dec. 10, 2013, Transistor, Vladimir Kmoch et al. / Thermo King Corporation (Minneapolis, US)
A buck/boost rectifier connectable to an alternating current power source,…

Inverter Topologies Usable With Reactive Power
US 08582331 B2, Nov. 12, 2013, Bridge type, Michael Frisch et al. / Vincotech Holdings S.à.r.l. (Luxembourg, LU)
Neutral point clamped, (NPC), inverter circuit comprising:…

Voltage Regulator With Inductor Banks
US 08553438 B1, Oct. 8, 2013, Master-slave, Aaron M. Schultz / Volterra Semiconductor Corporation (Fremont, US)
A method comprising:…

Load Driver, Image Forming Apparatus, Load Driving Method, and Computer Program Product
US 08537583 B2, Sept. 17, 2013, In chopper converter systems, Naohiro Yamamoto / Ricoh Company, Limited (Tokyo, JP)
A load driver that applies pulse voltages to a first capacitive load and a second…

Controlling a High-Voltage Direct-Current (HVDC) Link
US 08498133 B2, July 30, 2013, For transfer of power via a high voltage D.C. link, Giovanni Beccuti et al. / ABB Research Ltd. (Zurich, CH)
A method of controlling a High-Voltage Direct-Current (HVDC) link with two…

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