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:
Mar. 31, 2015
Filed:
Jan. 29, 2013
Pranav Raval, Nashua, NH (US);
Gregory Szczeszynski, Hollis, NH (US);
Bassem Alnahas, Manchester, NH (US);
Nai-chi Lee, Nashua, NH (US);
Pranav Raval, Nashua, NH (US);
Gregory Szczeszynski, Hollis, NH (US);
Bassem Alnahas, Manchester, NH (US);
Nai-Chi Lee, Nashua, NH (US);
Allegro Microsystems, LLC, Worcester, MA (US);
Abstract
Control circuits and techniques are provided for use with DC-DC converters. The circuits and techniques may, in some implementations, be used with LED driver systems. In some embodiments control circuits are provided that rely on multiple different feedback paths to adjust a duty cycle of a DC-DC converter. In some embodiments, control circuits are provided that switch between multiple capacitors to provide as duty cycle control signal for use with a DC-DC converter.