Wing Ling CHENG

Person

Taipo, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Power supplies and methods for reducing common mode noise
- Patent number 10,320,279
- Issue date Jun 11, 2019
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus to solve PFC capacitor reduction of line AFLC...
- Patent number 10,056,756
- Issue date Aug 21, 2018
- Edge Electrons Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
System and method for high efficiency power quality correction
- Patent number 10,027,120
- Issue date Jul 17, 2018
- Edge Electrons Limited
- Jian Carlo Decena Zapata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Energy saving high frequency series buck AC voltage regulator system
- Patent number 9,979,312
- Issue date May 22, 2018
- Edge Electrons Limited
- Neal George Stewart
- G05 - CONTROLLING REGULATING
Information Patent Grant
Fast response active reactive power (KVAR) compensator
- Patent number 9,941,698
- Issue date Apr 10, 2018
- Edge Electronics Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High frequency series AC voltage regulator
- Patent number 9,819,279
- Issue date Nov 14, 2017
- EDGE ELECTRONS LIMITED
- Neal George Stewart
- G05 - CONTROLLING REGULATING
Information Patent Grant
Control circuits and methods for controlling switching devices
- Patent number 9,621,020
- Issue date Apr 11, 2017
- Astec International Limited
- Zong Bo Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power supplies responsive to multiple control signal formats
- Patent number 9,219,413
- Issue date Dec 22, 2015
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High frequency series AC voltage regulator
- Patent number 9,148,058
- Issue date Sep 29, 2015
- Power Quality Engineering Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multiple resonant converter apparatus and control method
- Patent number 9,124,180
- Issue date Sep 1, 2015
- Astec International Limited
- Tai Keung Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuits and methods for controlling switching devices
- Patent number 8,207,779
- Issue date Jun 26, 2012
- Astec International Limited
- Zong Bo Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Health monitoring for power converter capacitors
- Patent number 7,830,269
- Issue date Nov 9, 2010
- Astec International Limited
- Wing Ling Cheng
- G01 - MEASURING TESTING
Information Patent Grant
Power converter with degraded component alarm
- Patent number 7,817,051
- Issue date Oct 19, 2010
- Astec International Limited
- Wing Ling Cheng
- G01 - MEASURING TESTING
Information Patent Grant
Health monitoring for power converter components
- Patent number 7,804,415
- Issue date Sep 28, 2010
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply with reliable voltage feedback control independent of...
- Patent number 7,589,505
- Issue date Sep 15, 2009
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fast transition power supply
- Patent number 7,417,339
- Issue date Aug 26, 2008
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of operating a resonant push-pull converter in an above reso...
- Patent number 7,352,596
- Issue date Apr 1, 2008
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Air ventilation cooling systems for a portable power device
- Patent number 7,307,839
- Issue date Dec 11, 2007
- Astec International Limited
- Man Keung Tse
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Adapter with manually retractable cable assembly and electrical plu...
- Patent number 6,623,294
- Issue date Sep 23, 2003
- Astec International Limited
- Man Keung Tse
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Adapter with retractable cable assembly and electrical plug assembly
- Patent number 6,402,546
- Issue date Jun 11, 2002
- Astec International Limited
- John M. Groves
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Topology-independent synchronous rectifier commutation circuit
- Patent number 6,246,593
- Issue date Jun 12, 2001
- Astec International Limited
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Adaptive pulse width modulated resonant Class-D converter
- Patent number 5,986,895
- Issue date Nov 16, 1999
- Astec International Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Low inductance high current connector for improved power supply system
- Patent number 5,959,848
- Issue date Sep 28, 1999
- Astec International Limited
- John Michael Groves
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Power supply system for high density printed circuit boards
- Patent number 5,901,038
- Issue date May 4, 1999
- Wing Ling Cheng
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS TO SOLVE PFC CAPACITOR REDUCTION OF LINE AFLC...
- Publication number 20180041034
- Publication date Feb 8, 2018
- Edge Electrons Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FAST RESPONSE ACTIVE REACTIVE POWER (KVAR) COMPENSATOR
- Publication number 20170373499
- Publication date Dec 28, 2017
- Edge Electrons Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power Supplies And Methods For Reducing Common Mode Noise
- Publication number 20170163145
- Publication date Jun 8, 2017
- Astec International Limited
- Wing Ling CHENG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Energy Saving High Frequency Series Buck AC Voltage Regulator System
- Publication number 20170141692
- Publication date May 18, 2017
- Edge Electrons Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
High Frequency Series AC Voltage Regulator
- Publication number 20160218635
- Publication date Jul 28, 2016
- Power Quality Engineering Limited
- Neal George Stewart
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
HIGH FREQUENCY SERIES AC VOLTAGE REGULATOR
- Publication number 20150115913
- Publication date Apr 30, 2015
- Power Quality Engineering Limited
- Neal George STEWART
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power Supplies Responsive To Multiple Control Signal Formats
- Publication number 20130221944
- Publication date Aug 29, 2013
- Wing Ling Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
RESONANT CONVERTER APPARATUS AND METHOD THEREOF
- Publication number 20120236610
- Publication date Sep 20, 2012
- Tai Keung Lee
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICES
- Publication number 20090284303
- Publication date Nov 19, 2009
- Zong Bo Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICES
- Publication number 20090284302
- Publication date Nov 19, 2009
- Zong Bo Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICES
- Publication number 20090285001
- Publication date Nov 19, 2009
- Zong Bo Hu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Power converter with degraded component alarm
- Publication number 20090072983
- Publication date Mar 19, 2009
- Wing Ling Cheng
- G01 - MEASURING TESTING
Information Patent Application
Health monitoring for power converter capacitors
- Publication number 20090072982
- Publication date Mar 19, 2009
- Wing Ling Cheng
- G01 - MEASURING TESTING
Information Patent Application
Health monitoring for power converter components
- Publication number 20090072984
- Publication date Mar 19, 2009
- Wing Ling Cheng
- G01 - MEASURING TESTING
Information Patent Application
Power supply with reliable voltage feedback control
- Publication number 20060290204
- Publication date Dec 28, 2006
- Wing Ling Cheng
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Fast transition power supply
- Publication number 20060181155
- Publication date Aug 17, 2006
- Wing Ling Cheng
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Method of operating a resonant push-pull converter in an above reso...
- Publication number 20060139970
- Publication date Jun 29, 2006
- Wing Ling Cheng
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Air ventilation cooling systems for a portable device
- Publication number 20050231908
- Publication date Oct 20, 2005
- Man Keung Tse
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Adapter with manually retractable cable assembly and electrical plu...
- Publication number 20030008550
- Publication date Jan 9, 2003
- Man Keung Tse
- H01 - BASIC ELECTRIC ELEMENTS

Wing Ling CHENG

Person

Patents Grantslast 30 patents

Power supplies and methods for reducing common mode noise

Method and apparatus to solve PFC capacitor reduction of line AFLC...

System and method for high efficiency power quality correction

Energy saving high frequency series buck AC voltage regulator system

Fast response active reactive power (KVAR) compensator

High frequency series AC voltage regulator

Control circuits and methods for controlling switching devices

Power supplies responsive to multiple control signal formats

High frequency series AC voltage regulator

Multiple resonant converter apparatus and control method

Control circuits and methods for controlling switching devices

Health monitoring for power converter capacitors

Power converter with degraded component alarm

Health monitoring for power converter components

Power supply with reliable voltage feedback control independent of...

Fast transition power supply

Method of operating a resonant push-pull converter in an above reso...

Air ventilation cooling systems for a portable power device

Adapter with manually retractable cable assembly and electrical plu...

Adapter with retractable cable assembly and electrical plug assembly

Topology-independent synchronous rectifier commutation circuit

Adaptive pulse width modulated resonant Class-D converter

Low inductance high current connector for improved power supply system

Power supply system for high density printed circuit boards

Patents Applicationslast 30 patents

METHOD AND APPARATUS TO SOLVE PFC CAPACITOR REDUCTION OF LINE AFLC...

FAST RESPONSE ACTIVE REACTIVE POWER (KVAR) COMPENSATOR

Power Supplies And Methods For Reducing Common Mode Noise

Energy Saving High Frequency Series Buck AC Voltage Regulator System

High Frequency Series AC Voltage Regulator

HIGH FREQUENCY SERIES AC VOLTAGE REGULATOR

Power Supplies Responsive To Multiple Control Signal Formats

RESONANT CONVERTER APPARATUS AND METHOD THEREOF

CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICES

CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICES

CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICES

Power converter with degraded component alarm

Health monitoring for power converter capacitors

Health monitoring for power converter components

Power supply with reliable voltage feedback control

Fast transition power supply

Method of operating a resonant push-pull converter in an above reso...

Air ventilation cooling systems for a portable device

Adapter with manually retractable cable assembly and electrical plu...