1
Tan Dong F, Inouye Leonard Y: A phase staggered full-bridge converter with soft-pwm switching. TRW, November 25, 1998: EP0880220-A2 (190 worldwide citation)

A full-bridge converter 10 is provided which performs soft switching based on pulse width modulated switching signals. The converter 10 includes a primary side 12 and a secondary side 14 interconnected through a transformer 13. The primary side 12 includes a power source connected in parallel with l ...


2
Baarman David W: Adapter. Access Business Group International, Baarman David W, DANI William P, August 26, 2004: WO/2004/073176 (126 worldwide citation)

An adapter allows a remote device to use a contactless power supply. The adapter has a contactless power interface for receiving power from a contactless power supply and a power regulator for supplying power to the remote device. The adapter may have a rechargeable power source for operating the ad ...


3
Baarman David W: Adaptive inductive power supply with communication. Access Business Group International, Baarman David W, DANI William P, August 26, 2004: WO/2004/073166 (118 worldwide citation)

An adaptive inductive ballast is provided with the capability to communicate with a remote device powered by the ballast. To improve the operation of the ballast, the ballast changes its operating characteristics based upon information received from the remote device. Further, the ballast may provid ...


4
Baarman David W: Adaptive inductive power supply. Access Business Group International, Baarman David W, DANI William P, August 26, 2004: WO/2004/073150 (110 worldwide citation)

A contactless power supply has a dynamically configurable tank circuit powered by an inverter. The contactless power supply is inductively coupled to one or more loads. The inverter is connected to a DC power source. When loads are added or removed from the system, the contactless power supply is ca ...


5
Farnsworth Robert P: Circuit for reducing stray capacity effects in transformer windings. Hughes Aircraft Company, February 9, 1971: US3562623 (110 worldwide citation)

A transformer charging system that provides a highly efficient operation and that substantially eliminates switching transients. The high voltage or secondary winding of the transformer as well as the primary winding in some arrangements, is divided into segments which are isolated from each other b ...


6
Steigerwald Robert L, Park John N: Power circuits for obtaining a high power factor electronically. General Electric Company, Campbell Donald R, Cohen Joseph T, Squillaro Jerome C, October 14, 1975: US3913002 (92 worldwide citation)

Solid state chopper circuits for alternating-current or direct-current loads use only high frequency filtering and electronically shape the line current to obtain a high power factor. The control circuit generates a reference signal which is shaped according to a selected control function and also d ...


7
Brokaw Adrian Paul: Switching regulator having improved control circuiting. Keithley Instruments, February 5, 1974: US3790878 (84 worldwide citation)

An electrical circuit particularly applicable for use as a switching regulator having a storage inductor which periodically receives energy from a D.C. voltage source through a switch. Energy is released from the inductor when the switch is off to supply a load circuit. The ratio of switch on time t ...


8
Igarashi Masateru, Fujihira Tatsuhiko: Soft switching circuit. Fuji Electric, June 6, 2000: JP2000-156978 (72 worldwide citation)

PROBLEM TO BE SOLVED: To reduce generation loss, improve conversion efficiency, simplify constitution, and realize miniaturization or the like.SOLUTION: In a soft switching circuit, in which a capacitor is connected in parallel with a switching element and made to perform resonance operation with a ...


9
Koike Kengo, Okada Kei: Dc-to-DC converter. Sanken Electric, June 12, 2002: EP1213823-A2 (71 worldwide citation)

A load-sensing d.c.-to-d.c. converter has a transformer (2) with a primary winding (15) connected between a pair of d.c. input terminals (1a and 1b) via an on-off switch (3), and a secondary winding (16) connected between a pair of d.c. output terminals (20a and 20b) via a rectifying and smoothing c ...


10
Abe Hideaki, Kawamoto Minoru, Muto Motoharu: Non-contact power transmission device. Matsushita Electric Works, January 11, 2002: JP2002-010535 (69 worldwide citation)

PROBLEM TO BE SOLVED: To provide a non-contact power transmission device capable of stabilizing output terminal voltage to a constant value in a wide load range.SOLUTION: This non-contact power transmission device consists of a non- contact receptacle 1 including, a power circuit 10 outputting a DC ...