Fred Greenfeld

Person

Nederland, CO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Current-responsive active rectification for a power supply operable...
- Patent number 9,263,963
- Issue date Feb 16, 2016
- Intersil Americas LLC
- Fred Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LED driver system with dimmer detection
- Patent number 8,901,832
- Issue date Dec 2, 2014
- Intersil Americas LLC
- Weihong Qiu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
LED driver with open loop dimming control
- Patent number 8,344,657
- Issue date Jan 1, 2013
- Intersil Americas Inc.
- Xiaodong Zhan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inrush current limiter for an LED driver
- Patent number 8,339,055
- Issue date Dec 25, 2012
- Intersil Americas Inc.
- Xiaodong Zhan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Asymmetric zero-voltage switching full-bridge power converters
- Patent number 8,335,091
- Issue date Dec 18, 2012
- Intersil Corporation
- Fred Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Asymmetric zero-voltage switching full-bridge power converters
- Patent number 8,035,996
- Issue date Oct 11, 2011
- Intersil Americas Inc.
- Fred Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and system for dimming AC-powered light emitting diode (LED)...
- Patent number 8,022,634
- Issue date Sep 20, 2011
- Intersil Americas Inc.
- Fred Greenfeld
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Constant current light emitting diode (LED) driver circuit and method
- Patent number 7,944,153
- Issue date May 17, 2011
- Intersil Americas Inc.
- Fred Greenfeld
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High frequency connector-less charging scheme
- Patent number 7,876,067
- Issue date Jan 25, 2011
- Intersil Americas Inc.
- Fred Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current averaging circuit for a PWM power converter
- Patent number 7,196,503
- Issue date Mar 27, 2007
- Intersil Americas, Inc.
- Grady M. Wood
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Constant deadtime control in a feed forward enabled pulse width mod...
- Patent number 6,819,154
- Issue date Nov 16, 2004
- Intersil Americas Inc.
- Fred F. Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
ACTIVE RECTIFICATION WITH CURRENT-SENSE CONTROL
- Publication number 20140003104
- Publication date Jan 2, 2014
- INTERSIL AMERICAS LLC
- Fred GREENFELD
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LED DRIVER SYSTEM WITH DIMMER DETECTION
- Publication number 20130207555
- Publication date Aug 15, 2013
- INTERSIL AMERICAS LLC
- Weihong Qiu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
ASYMMETRIC ZERO-VOLTAGE SWITCHING FULL-BRIDGE POWER CONVERTERS
- Publication number 20120008359
- Publication date Jan 12, 2012
- Intersil Americas Inc.
- Fred Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC/DC POWER CONVERTER HAVING ACTIVE SELF DRIVING SYNCHRONOUS RECTIF...
- Publication number 20110286245
- Publication date Nov 24, 2011
- Intersil Americas Inc.
- XIAODONG ZHAN
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
LED DRIVER WITH OPEN LOOP DIMMING CONTROL
- Publication number 20110101877
- Publication date May 5, 2011
- Intersil Americas Inc.
- Xiaodong Zhan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
INRUSH CURRENT LIMITER FOR AN LED DRIVER
- Publication number 20110025217
- Publication date Feb 3, 2011
- Intersil Americas Inc.
- Xiaodong Zhan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD AND SYSTEM FOR DIMMING AC-POWERED LIGHT EMITTING DIODE (LED)...
- Publication number 20090195168
- Publication date Aug 6, 2009
- Intersil Americas Inc.
- Fred Greenfeld
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Constant current light emitting diode (LED) driver circuit and method
- Publication number 20080224625
- Publication date Sep 18, 2008
- Intersil Americas Inc.
- Fred Greenfeld
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGH FREQUENCY CONNECTOR-LESS CHARGING SCHEME
- Publication number 20080116846
- Publication date May 22, 2008
- Intersil Americas Inc.
- FRED GREENFELD
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Current averaging circuit for a PWM power converter
- Publication number 20060017424
- Publication date Jan 26, 2006
- Intersil Americas Inc.
- Grady M. Wood
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Bridge power converter overload protection
- Publication number 20050036245
- Publication date Feb 17, 2005
- Intersil Americas Inc.
- Fred F. Greenfeld
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Constant deadtime control in a feed forward enabled pulse width mod...
- Publication number 20040150439
- Publication date Aug 5, 2004
- Intersil Americas Inc.
- Fred F. Greenfeld
- H03 - BASIC ELECTRONIC CIRCUITRY

Fred Greenfeld

Person

Patents Grantslast 30 patents

Current-responsive active rectification for a power supply operable...

LED driver system with dimmer detection

LED driver with open loop dimming control

Inrush current limiter for an LED driver

Asymmetric zero-voltage switching full-bridge power converters

Asymmetric zero-voltage switching full-bridge power converters

Method and system for dimming AC-powered light emitting diode (LED)...

Constant current light emitting diode (LED) driver circuit and method

High frequency connector-less charging scheme

Current averaging circuit for a PWM power converter

Constant deadtime control in a feed forward enabled pulse width mod...

Patents Applicationslast 30 patents

ACTIVE RECTIFICATION WITH CURRENT-SENSE CONTROL

LED DRIVER SYSTEM WITH DIMMER DETECTION

ASYMMETRIC ZERO-VOLTAGE SWITCHING FULL-BRIDGE POWER CONVERTERS

DC/DC POWER CONVERTER HAVING ACTIVE SELF DRIVING SYNCHRONOUS RECTIF...

LED DRIVER WITH OPEN LOOP DIMMING CONTROL

INRUSH CURRENT LIMITER FOR AN LED DRIVER

METHOD AND SYSTEM FOR DIMMING AC-POWERED LIGHT EMITTING DIODE (LED)...

Constant current light emitting diode (LED) driver circuit and method

HIGH FREQUENCY CONNECTOR-LESS CHARGING SCHEME

Current averaging circuit for a PWM power converter

Bridge power converter overload protection

Constant deadtime control in a feed forward enabled pulse width mod...