Jin Wook Choi

US Patent:

7529105, May 5, 2009

Filed:

Nov 3, 2006

Appl. No.:

11/592372

Inventors:

Jin Ho Choi - Lewisville TX, US
Richard Chang-Wei Chung - Austin TX, US
Kevin Parmenter - Tempe AZ, US

Assignee:

Fairchild Semiconductor Corporation - South Portland ME

International Classification:

H02M 3/335

US Classification:

363 2112, 363 2118, 363 97, 363131

Abstract:

In one embodiment, a method is provided for a power converter system. The method includes: automatically configuring the power converter system to operate with burst mode functionality if a control module of the power converter system is coupled in a first arrangement; and automatically configuring the power converter system to operate without burst mode functionality if the control module of the power converter system is coupled in a second arrangement.

US Patent:

7911210, Mar 22, 2011

Filed:

Feb 25, 2009

Appl. No.:

12/392929

Inventors:

Gye Hyun Cho - Gyeonggi-do, KR
Jin Ho Choi - Lewisville TX, US
Sang Cheol Her - Seoul, KR

Assignee:

Fairchild Korea Semiconductor Ltd - Bucheon

International Classification:

G01R 31/00
G01R 31/08
H05B 37/02

US Classification:

324414, 324522, 315291

Abstract:

The present invention relates a diagnosis device for detecting an end of lamp life of a lamp, a diagnosis method, and a lamp ballast circuit using the same. The diagnosis device generates a reference lamp voltage by adding a predetermined reference voltage to a distributed voltage corresponding to a lamp voltage applied to a lamp and generates an integrated lamp voltage by integrating the reference lamp voltage. The diagnosis device compares the integrated lamp voltage with a normal range that an integrated lamp voltage has when the lamp is in a normal state.

Address:

4350 Trinity Ml Rd APT 2103, Dallas, TX 75287

VIN:

KMHDU46D38U305967

Make:

HYUNDAI

Model:

ELANTRA

Year:

2008