Inventor
LEE NAI-CHI
US27 patents
⚠️ This page may combine multiple inventors who share the name “LEE NAI-CHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALLEGRO MICROSYSTEMS LLC
7 patentsUS9538601B1Jan 3, 2017
Method and apparatus for driving loads using a DC-DC converter
ALLEGRO MICROSYSTEMS LLC27 citations94
US9781789B1Oct 3, 2017
Apparatus and methods for LED control
ALLEGRO MICROSYSTEMS LLC12 citations84
US11272591B1Mar 8, 2022
Constant power light emitting diode (LED) driver
ALLEGRO MICROSYSTEMS LLC5 citations73
US10412797B2Sep 10, 2019
Apparatus and methods for converter mode and load configuration control
ALLEGRO MICROSYSTEMS LLC5 citations73
US9825528B2Nov 21, 2017
Compensating for voltage changes in driver circuits
ALLEGRO MICROSYSTEMS LLC3 citations72
US9642203B2May 2, 2017
Controlling dimming ratio and output ripple voltage
ALLEGRO MICROSYSTEMS LLC3 citations72
US9615413B2Apr 4, 2017
Driver circuit using dynamic regulation and related techniques
ALLEGRO MICROSYSTEMS LLC6 citations72
KONINKL PHILIPS ELECTRONICS NV
6 patentsUS6844702B2Jan 18, 2005
System, method and apparatus for contact-less battery charging with dynamic control
KONINKL PHILIPS ELECTRONICS NV463 citations98
US6788555B2Sep 7, 2004
Regulation of bi-directional flyback converter
KONINKL PHILIPS ELECTRONICS NV32 citations92
US6549432B1Apr 15, 2003
Single-winding, multiple-output, bi-directional flyback converter
KONINKL PHILIPS ELECTRONICS NV45 citations92
US6563718B1May 13, 2003
Capacitively coupled power converter
KONINKL PHILIPS ELECTRONICS NV73 citations91
US6400581B1Jun 4, 2002
Method for adaptive control of switching losses in a drive circuit for active elements
KONINKL PHILIPS ELECTRONICS NV17 citations84
US6674655B2Jan 6, 2004
Control method and apparatus for a flyback converter
KONINKL PHILIPS ELECTRONICS NV8 citations74
PHILIPS ELECTRONICS NA
6 patentsUS6341073B1Jan 22, 2002
Multiple valley controller for switching circuit
PHILIPS ELECTRONICS NA61 citations96
US5936446AAug 10, 1999
PWM variable voltage load driver with peak voltage limitation
PHILIPS ELECTRONICS NA22 citations92
US6011387AJan 4, 2000
Analog autonomous test bus framework for testing integrated circuits on a printed circuit board
PHILIPS ELECTRONICS NA7 citations74
US5731701AMar 24, 1998
Analog autonomous test bus framework for testing integrated circuits on a printed circuit board
PHILIPS ELECTRONICS NA6 citations74
US5721511AFeb 24, 1998
PWM variable voltage load driver
PHILIPS ELECTRONICS NA11 citations74
US5717329AFeb 10, 1998
Analog autonomous test bus framework for testing integrated circuits on a printed circuit board
PHILIPS ELECTRONICS NA5 citations74
PHILIPS CORP
3 patentsUSRE37500EJan 8, 2002
System for partitioning and testing submodule circuits of an integrated circuit
PHILIPS CORP17 citations92
US5581176ADec 3, 1996
Analog autonomous test bus framework for testing integrated circuits on a printed circuit board
PHILIPS CORP22 citations92
US5705925AJan 6, 1998
Analog autonomous test bus framework for testing integrated circuits on a printed circuit board
PHILIPS CORP6 citations74