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:
Feb. 17, 2015
Filed:
Aug. 22, 2012
Pranav Raval, Nashua, NH (US);
Gregory Szczeszynski, Hollis, NH (US);
Bassem Alnahas, Manchester, NH (US);
Pranav Raval, Nashua, NH (US);
Gregory Szczeszynski, Hollis, NH (US);
Bassem Alnahas, Manchester, NH (US);
Allergo Microsystems, LLC, Worcester, MA (US);
Abstract
A control circuit used to control a DC-DC converter includes a duty cycle control unit to control a duty cycle of the DC-DC converter and a hysteretic control unit to maintain a voltage at an output of the DC-DC converter within a narrow range during certain operational time periods. The hysteretic control unit may maintain the converter output voltage within the range by alternately enabling and disabling the duty cycle control unit based on feedback from the DC-DC converter output. In at least one embodiment, the control circuit is used within LED driver circuitry for driving a plurality of LED channels.