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:
Sep. 08, 2015
Filed:
Nov. 10, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Takashi Kunimatsu, Shiga, JP;
Abstract
A light-emitting diode driving apparatus including a rectifying circuit, a switching element, a choke coil, an output current sensing circuit, an LED light source, a rectifier diode, a control circuit, and a feedback sensing circuit which is connected to the output current sensing circuit for receiving an output feedback signal output from the output current sensing circuit, wherein the feedback sensing circuit outputs a feedback dummy signal, and outputs to the control circuit a control signal that controls switching of the switching element in response to a signal based on an error between the output feedback signal and the feedback dummy signal.