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:
Nov. 04, 2014
Filed:
Jun. 13, 2013
Ayan Choudhury, Danvers, MA (US);
Arindam Chakraborty, Chicago, IL (US);
Shashank Bakre, Burlington, MA (US);
Ayan Choudhury, Danvers, MA (US);
Arindam Chakraborty, Chicago, IL (US);
Shashank Bakre, Burlington, MA (US);
OSRAM SYLVANIA Inc., Danvers, MA (US);
Abstract
A ballast comprises an inverter circuit for connecting to a lamp and providing power thereto. The ballast includes a current feedback circuit connected to the inverter circuit and the lamp for controlling the frequency of the inverter circuit based on current feedback from the lamp. The ballast includes a switch circuit connected to the current feedback circuit and the lamp for enabling the current feedback circuit when the lamp is in a normal operating state and disabling the current feedback circuit when the lamp is in a low current operating state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile