| Patent | Date |
|---|
Power supplies and methods for reducing common mode noise
Grant 10,320,279 - Cheng , et al. | 2019-06-11 |
Method and apparatus to solve PFC capacitor reduction of line AFLC ripple without passive filters
Grant 10,056,756 - Stewart , et al. August 21, 2 | 2018-08-21 |
System and method for high efficiency power quality correction
Grant 10,027,120 - Zapata , et al. July 17, 2 | 2018-07-17 |
Energy saving high frequency series buck AC voltage regulator system
Grant 9,979,312 - Stewart , et al. May 22, 2 | 2018-05-22 |
Fast response active reactive power (KVAR) compensator
Grant 9,941,698 - Stewart , et al. April 10, 2 | 2018-04-10 |
Method And Apparatus To Solve Pfc Capacitor Reduction Of Line Aflc Ripple Without Passive Filters
App 20180041034 - Stewart; Neal George ; et al. | 2018-02-08 |
Fast Response Active Reactive Power (kvar) Compensator
App 20170373499 - Stewart; Neal George ; et al. | 2017-12-28 |
High frequency series AC voltage regulator
Grant 9,819,279 - Stewart , et al. November 14, 2 | 2017-11-14 |
Power Supplies And Methods For Reducing Common Mode Noise
App 20170163145 - CHENG; Wing Ling ; et al. | 2017-06-08 |
Energy Saving High Frequency Series Buck AC Voltage Regulator System
App 20170141692 - Stewart; Neal George ; et al. | 2017-05-18 |
Control circuits and methods for controlling switching devices
Grant 9,621,020 - Hu , et al. April 11, 2 | 2017-04-11 |
High Frequency Series AC Voltage Regulator
App 20160218635 - Stewart; Neal George ; et al. | 2016-07-28 |
Power supplies responsive to multiple control signal formats
Grant 9,219,413 - Cheng , et al. December 22, 2 | 2015-12-22 |
High frequency series AC voltage regulator
Grant 9,148,058 - Stewart , et al. September 29, 2 | 2015-09-29 |
Multiple resonant converter apparatus and control method
Grant 9,124,180 - Lee , et al. September 1, 2 | 2015-09-01 |
High Frequency Series Ac Voltage Regulator
App 20150115913 - STEWART; Neal George ; et al. | 2015-04-30 |
Power Supplies Responsive To Multiple Control Signal Formats
App 20130221944 - Cheng; Wing Ling ; et al. | 2013-08-29 |
Resonant Converter Apparatus And Method Thereof
App 20120236610 - Lee; Tai Keung ; et al. | 2012-09-20 |
Control circuits and methods for controlling switching devices
Grant 8,207,779 - Hu , et al. June 26, 2 | 2012-06-26 |
Health monitoring for power converter capacitors
Grant 7,830,269 - Cheng , et al. November 9, 2 | 2010-11-09 |
Power converter with degraded component alarm
Grant 7,817,051 - Cheng , et al. October 19, 2 | 2010-10-19 |
Health monitoring for power converter components
Grant 7,804,415 - Cheng , et al. September 28, 2 | 2010-09-28 |
Control Circuits And Methods For Controlling Switching Devices
App 20090284302 - Hu; Zong Bo ; et al. | 2009-11-19 |
Control Circuits And Methods For Controlling Switching Devices
App 20090284303 - Hu; Zong Bo ; et al. | 2009-11-19 |
Control Circuits And Methods For Controlling Switching Devices
App 20090285001 - Hu; Zong Bo ; et al. | 2009-11-19 |
Power supply with reliable voltage feedback control independent of any ground voltage difference
Grant 7,589,505 - Cheng September 15, 2 | 2009-09-15 |
Health monitoring for power converter components
App 20090072984 - Cheng; Wing Ling ; et al. | 2009-03-19 |
Health monitoring for power converter capacitors
App 20090072982 - Cheng; Wing Ling ; et al. | 2009-03-19 |
Power converter with degraded component alarm
App 20090072983 - Cheng; Wing Ling ; et al. | 2009-03-19 |
Fast transition power supply
Grant 7,417,339 - Cheng August 26, 2 | 2008-08-26 |
Method of operating a resonant push-pull converter in an above resonant frequency mode
Grant 7,352,596 - Cheng April 1, 2 | 2008-04-01 |
Air ventilation cooling systems for a portable power device
Grant 7,307,839 - Tse , et al. December 11, 2 | 2007-12-11 |
Power supply with reliable voltage feedback control
App 20060290204 - Cheng; Wing Ling | 2006-12-28 |
Fast transition power supply
App 20060181155 - Cheng; Wing Ling | 2006-08-17 |
Method of operating a resonant push-pull converter in an above resonant frequency mode
App 20060139970 - Cheng; Wing Ling | 2006-06-29 |
Air ventilation cooling systems for a portable device
App 20050231908 - Tse, Man Keung ; et al. | 2005-10-20 |
Adapter with manually retractable cable assembly and electrical plug assembly
Grant 6,623,294 - Tse , et al. September 23, 2 | 2003-09-23 |
Adapter with manually retractable cable assembly and electrical plug assembly
App 20030008550 - Tse, Man Keung ; et al. | 2003-01-09 |
Adapter with retractable cable assembly and electrical plug assembly
Grant 6,402,546 - Groves , et al. June 11, 2 | 2002-06-11 |
Topology-independent synchronous rectifier commutation circuit
Grant 6,246,593 - Cheng June 12, 2 | 2001-06-12 |
Adaptive pulse width modulated resonant Class-D converter
Grant 5,986,895 - Stewart , et al. November 16, 1 | 1999-11-16 |
Low inductance high current connector for improved power supply system
Grant 5,959,848 - Groves , et al. September 28, 1 | 1999-09-28 |
Power supply system for high density printed circuit boards
Grant 5,901,038 - Cheng , et al. May 4, 1 | 1999-05-04 |
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