The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2014
Filed:
Aug. 03, 2011
Applicants:
Piero Bianco, Fremont, CA (US);
Stefano Casula, Assago, IT;
Inventors:
Piero Bianco, Fremont, CA (US);
Stefano Casula, Assago, IT;
Assignee:
Maxim Integrated Products, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a LED driver that minimizes the driver electronic pin count and integrates the short circuit protection feature. An NPN bipolar transistor is employed in a boost converter configuration to drive a LED string in the backlight display applications. The bipolar transistor is integrated with the driver electronics by two pins. Drive current is injected from the NPN transistor to the LED string to minimizing high voltage connection of each LED string to one.