Nai-Chi Lee

Person

Nashua, NH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Constant power light emitting diode (LED) driver
- Patent number 11,272,591
- Issue date Mar 8, 2022
- ALLEGRO MICROSYSTEMS, LLC
- Nai-Chi Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and methods for converter mode and load configuration con...
- Patent number 10,412,797
- Issue date Sep 10, 2019
- ALLEGRO MICROSYSTEMS, LLC
- Nai-Chi Lee
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Compensating for voltage changes in driver circuits
- Patent number 9,825,528
- Issue date Nov 21, 2017
- Allegro Microsystems, LLC
- Nai-Chi Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and methods for LED control
- Patent number 9,781,789
- Issue date Oct 3, 2017
- Allegro Microsystems, LLC
- Nai-Chi Lee
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Controlling dimming ratio and output ripple voltage
- Patent number 9,642,203
- Issue date May 2, 2017
- Allegro Microsystems, LLC
- Nai-Chi Lee
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Driver circuit using dynamic regulation and related techniques
- Patent number 9,615,413
- Issue date Apr 4, 2017
- Allegro Microsystems, LLC
- Pranav Raval
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for driving loads using a DC-DC converter
- Patent number 9,538,601
- Issue date Jan 3, 2017
- Allegro Microsystems, LLC
- Vijay Mangtani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus to control a DC-DC converter
- Patent number 8,994,279
- Issue date Mar 31, 2015
- Allegro Microsystems, LLC
- Pranav Raval
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Circuitry to drive parallel loads sequentially
- Patent number 8,610,371
- Issue date Dec 17, 2013
- Allegro Microsystems, LLC
- Nai-Chi Lee
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Capacitor charging methods and apparatus
- Patent number 7,787,262
- Issue date Aug 31, 2010
- Allegro Microsystems, Inc.
- Vijay Mangtani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHODS FOR CONVERTER MODE AND LOAD CONFIGURATION CON...
- Publication number 20180049283
- Publication date Feb 15, 2018
- Allegro Microsystems, LLC
- Nai-Chi Lee
- B60 - VEHICLES IN GENERAL
Information Patent Application
Compensating For Voltage Changes In Driver Circuits
- Publication number 20170187280
- Publication date Jun 29, 2017
- Allegro Microsystems, LLC
- Nai-Chi Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CONTROLLING DIMMING RATIO AND OUTPUT RIPPLE VOLTAGE
- Publication number 20160366742
- Publication date Dec 15, 2016
- Allegro Microsystems, LLC
- Nai-Chi Lee
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Driver Circuit Using Dynamic Regulation and Related Techniques
- Publication number 20150061528
- Publication date Mar 5, 2015
- Allegro Microsystems, LLC
- Pranav Raval
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method And Apparatus To Control A DC-DC Converter
- Publication number 20140210359
- Publication date Jul 31, 2014
- Pranav Raval
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CIRCUITRY TO DRIVE PARALLEL LOADS SEQUENTIALLY
- Publication number 20130162152
- Publication date Jun 27, 2013
- ALLEGRO MICROSYSTEMS, INC.
- Nai-Chi Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Multi-phase buck converter with a plurality of coupled inductors
- Publication number 20080084717
- Publication date Apr 10, 2008
- Wenkai Wu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MULTI-PHASE BUCK CONVERTER WITH A PLURALITY OF COUPLED INDUCTORS
- Publication number 20080019158
- Publication date Jan 24, 2008
- INTERNATIONAL RECTIFIER CORPORATION
- Wenkai Wu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CAPACITOR CHARGING METHODS AND APPARATUS
- Publication number 20070103943
- Publication date May 10, 2007
- Vijay Mangtani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Nai-Chi Lee

Person

Patents Grantslast 30 patents

Constant power light emitting diode (LED) driver

Apparatus and methods for converter mode and load configuration con...

Compensating for voltage changes in driver circuits

Apparatus and methods for LED control

Controlling dimming ratio and output ripple voltage

Driver circuit using dynamic regulation and related techniques

Method and apparatus for driving loads using a DC-DC converter

Method and apparatus to control a DC-DC converter

Circuitry to drive parallel loads sequentially

Capacitor charging methods and apparatus

Patents Applicationslast 30 patents

APPARATUS AND METHODS FOR CONVERTER MODE AND LOAD CONFIGURATION CON...

Compensating For Voltage Changes In Driver Circuits

CONTROLLING DIMMING RATIO AND OUTPUT RIPPLE VOLTAGE

Driver Circuit Using Dynamic Regulation and Related Techniques

Method And Apparatus To Control A DC-DC Converter

CIRCUITRY TO DRIVE PARALLEL LOADS SEQUENTIALLY

Multi-phase buck converter with a plurality of coupled inductors

MULTI-PHASE BUCK CONVERTER WITH A PLURALITY OF COUPLED INDUCTORS

CAPACITOR CHARGING METHODS AND APPARATUS