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:
Aug. 04, 2015
Filed:
Mar. 13, 2012
Liang Yan, Milpitas, CA (US);
Clarita C. Poon, Pleasanton, CA (US);
Hien Huu Bui, San Jose, CA (US);
Chuanyang Wang, Cupertino, CA (US);
Andrew Kwok-cheung Lee, Union City, CA (US);
John William Kesterson, Seaside, CA (US);
Liang Yan, Milpitas, CA (US);
Clarita C. Poon, Pleasanton, CA (US);
Hien Huu Bui, San Jose, CA (US);
Chuanyang Wang, Cupertino, CA (US);
Andrew Kwok-Cheung Lee, Union City, CA (US);
John William Kesterson, Seaside, CA (US);
Dialog Semiconductor Inc., Campbell, CA (US);
Abstract
A power converter that controls a collector current of a bipolar junction transistor (BJT) by controlling the base current to the BJT after having determined the gain of the BJT. A gain detection block determines a gain of the BJT during a first mode. A current calculation block generates a current setting for the base current based on the gain of the BJT determined by the gain detection block during a second mode distinct from the first mode. In some embodiments, the power converter may be included in a LED lamp system.