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. 23, 2005
Filed:
Jun. 27, 2003
Applicant:
Mark R. Allen, Encinitas, CA (US);
Inventor:
Mark R. Allen, Encinitas, CA (US);
Assignees:
Luxidein Limited, Encinitas, CA (US);
Fiber Optic Designs, Yardley, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F001/40 ; H05B037/02 ;
U.S. Cl.
CPC ...
Abstract
Field Effect Transistors (FETs) are used to regulate current in a light emitting diode (LED). FETs are fundamentally voltage driven devices, where output current is governed by junction voltage. Since junction voltage can be controlled with little or no support circuitry, FETs present a solution to current regulation where cost, complexity, and perhaps even size are important.