Jianwen Shao

Person

Schaumburg, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Power converter for interfacing a fluorescent lighting ballast to a...
- Patent number 9,204,505
- Issue date Dec 1, 2015
- STMicroelectronics, Inc.
- Thomas Stamm
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Primary-side regulation of output current in a line-powered LED driver
- Patent number 8,803,439
- Issue date Aug 12, 2014
- STMicroelectronics, Inc.
- Thomas Stamm
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Wide input voltage range power factor correction circuit
- Patent number 8,653,801
- Issue date Feb 18, 2014
- STMicroelectronics, Inc.
- Jianwen Shao
- G05 - CONTROLLING REGULATING
Information Patent Grant
Wide input voltage range power factor correction circuit
- Patent number 8,436,593
- Issue date May 7, 2013
- STMicroelectronics, Inc.
- Jianwen Shao
- G05 - CONTROLLING REGULATING
Information Patent Grant
System and method for a constant current source LED driver
- Patent number 8,373,356
- Issue date Feb 12, 2013
- STMicroelectronics, Inc.
- Jianwen Shao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and circuit for driving a low voltage light emitting diode
- Patent number 8,324,825
- Issue date Dec 4, 2012
- STMicroelectronics, Inc.
- Jianwen Shao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for constant power offline LED driver
- Patent number 8,305,004
- Issue date Nov 6, 2012
- STMicroelectronics, Inc.
- Jianwen Shao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and circuit for driving a low voltage light emitting diode
- Patent number 7,425,803
- Issue date Sep 16, 2008
- STMicroelectronics, Inc.
- Jianwen Shao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Back EMF detection circuit and method for a sensorless brushless DC...
- Patent number 7,301,298
- Issue date Nov 27, 2007
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Determining rotation of a freewheeling motor
- Patent number 7,242,175
- Issue date Jul 10, 2007
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for improved back electromotive force detection
- Patent number 7,102,307
- Issue date Sep 5, 2006
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit for improved back EMF detection
- Patent number 6,633,145
- Issue date Oct 14, 2003
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER CONVERTER FOR INTERFACING A FLUORESCENT LIGHTING BALLAST TO A...
- Publication number 20140320007
- Publication date Oct 30, 2014
- STMicroelectronics, Inc.
- Thomas Stamm
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
WIDE INPUT VOLTAGE RANGE POWER FACTOR CORRECTION CIRCUIT
- Publication number 20130214756
- Publication date Aug 22, 2013
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PRIMARY-SIDE REGULATION OF OUTPUT CURRENT IN A LINE-POWERED LED DRIVER
- Publication number 20120098463
- Publication date Apr 26, 2012
- STMicroelectronics, Inc.
- Thomas Stamm
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
WIDE INPUT VOLTAGE RANGE POWER FACTOR CORRECTION CIRCUIT
- Publication number 20110199066
- Publication date Aug 18, 2011
- STMicroelectronics, Inc,
- Jianwen Shao
- G05 - CONTROLLING REGULATING
Information Patent Application
APPARATUS AND METHOD FOR CONSTANT POWER OFFLINE LED DRIVER
- Publication number 20100308733
- Publication date Dec 9, 2010
- STMicroelectronics, Inc.
- Jianwen Shao
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
System and method for a constant current source LED driver
- Publication number 20100164404
- Publication date Jul 1, 2010
- STMicroelectronics, Inc.
- Jianwen Shao
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Method and Circuit for Driving a Low Voltage Light Emitting Diode
- Publication number 20080297069
- Publication date Dec 4, 2008
- STMicroelectronics, Inc.
- Jianwen Shao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Back EMF detection circuit and method for a sensorless brushless DC...
- Publication number 20060152181
- Publication date Jul 13, 2006
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method and circuit for driving a low voltage light emitting diode
- Publication number 20060043911
- Publication date Mar 2, 2006
- Jianwen Shao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Determining rotation of a freewheeling motor
- Publication number 20050030002
- Publication date Feb 10, 2005
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Circuit and method for improved back electromotive force detection
- Publication number 20040000885
- Publication date Jan 1, 2004
- STMicroelectronics, Inc.
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Circuit for Improved back EMF detection
- Publication number 20030098666
- Publication date May 29, 2003
- Jianwen Shao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Jianwen Shao

Person

Patents Grantslast 30 patents

Power converter for interfacing a fluorescent lighting ballast to a...

Primary-side regulation of output current in a line-powered LED driver

Wide input voltage range power factor correction circuit

Wide input voltage range power factor correction circuit

System and method for a constant current source LED driver

Method and circuit for driving a low voltage light emitting diode

Apparatus and method for constant power offline LED driver

Method and circuit for driving a low voltage light emitting diode

Back EMF detection circuit and method for a sensorless brushless DC...

Determining rotation of a freewheeling motor

Circuit and method for improved back electromotive force detection

Circuit for improved back EMF detection

Patents Applicationslast 30 patents

POWER CONVERTER FOR INTERFACING A FLUORESCENT LIGHTING BALLAST TO A...

WIDE INPUT VOLTAGE RANGE POWER FACTOR CORRECTION CIRCUIT

PRIMARY-SIDE REGULATION OF OUTPUT CURRENT IN A LINE-POWERED LED DRIVER

WIDE INPUT VOLTAGE RANGE POWER FACTOR CORRECTION CIRCUIT

APPARATUS AND METHOD FOR CONSTANT POWER OFFLINE LED DRIVER

System and method for a constant current source LED driver

Method and Circuit for Driving a Low Voltage Light Emitting Diode

Back EMF detection circuit and method for a sensorless brushless DC...

Method and circuit for driving a low voltage light emitting diode

Determining rotation of a freewheeling motor

Circuit and method for improved back electromotive force detection

Circuit for Improved back EMF detection