Featured patents

Voltage Regulator With Adaptive Hysteretic Control
US 08773090 B2, July 8, 2014, Switched, Qian Ouyang et al. / Monolithic Power Systems, Inc. (San Jose, US)
A voltage regulator, comprising:…

Controllable DC to DC Converter
US 08716989 B2, May 6, 2014, Switched, Guilluame de Cremoux et al. / Analog Devices, Inc. (Norwood, US)
A DC to DC converter comprising an inductor, first and second electrically…

Duty Ratio/Voltage Conversion Circuit
US 08653805 B2, Feb. 18, 2014, With ramp generator or controlled capacitor charging, Shoji Abo et al. / Toyota Jidosha Kabushiki Kaisha (Toyota, JP)
A duty ratio/voltage conversion circuit that converts a duty ratio of an input…

Step-Up Switching Power Supply Device With Current-Limiting Transistor
US 08653800 B2, Feb. 18, 2014, Using choke and switch across source, Takatsugu Wachi et al. / Rohm Co., Ltd. (Kyoto, JP)
A step-up switching power supply device comprising:…

Pulse Width Modulator With an Adjustable Waveform Generator for Controlling Duty Cycle of a Pulse Width Modulated Signal
US 08629667 B2, Jan. 14, 2014, Switched, Fabrice Paillet et al. / Intel Corporation (Santa Clara, US)
A circuit comprising:…

Switching Power Source Device
US 08604769 B2, Dec. 10, 2013, With threshold detection, Kazuhiro Murakami / Rohm Co., Ltd. (Kyoto, JP)
A switching power source device comprising:…

Power Supply Apparatus With Fast Initiating Speed and Power Supply System With Multiple Power Supply Apparatuses With Fast Initiating Speed
US 08593118 B2, Nov. 26, 2013, Parallel connected, Sheng-Hua Li / Delta Electronics, Inc. (Taoyuan Hsien, TW)
A power supply apparatus for receiving a first input voltage and generating…

Power Converting Apparatus, Grid Interconnection Apparatus and Grid Interconnection System
US 08564261 B2, Oct. 22, 2013, Including pre or post regulation, Fumiiki Yoneda / SANYO Electric Co., Ltd. (Moriguchi-shi, Osaka, JP)
A power converting apparatus including a DC-DC converter circuit configured…

Adjustable Shunt Regulator Circuit Without Error Amplifier
US 08536855 B2, Sept. 17, 2013, With switched final control device, Isaac Terasuth Ko et al. / Supertex, Inc. (Sunnyvale, US)
An adjustable regulator circuit comprising:…

Method and Apparatus for Implementing an Unregulated Dormant Mode in a Power Converter
US 08519693 B2, Aug. 27, 2013, With ramp generator or controlled capacitor charging, David Michael Hugh Matthews / Power Integrations, Inc. (San Jose, US)
A control circuit for use in a power converter, comprising:…

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