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. 10, 2015
Filed:
May. 08, 2012
Sachiyo Yamada, Yokohama, JP;
Sachiyo Yamada, Yokohama, JP;
SAMSUNG DISPLAY CO., LTD., , KR;
Abstract
A constant current driving circuit includes a control integrated circuit which generates a switching signal, a switching device which switches an input power supply voltage based on the switching signal, a rectifying diode which rectifies a current of the input power supply voltage, a smoothing inductor which smoothes the current of the input power supply voltage, and a smoothing condenser which outputs an output current. The control integrated circuit includes a reference signal generator which generates a reference signal having information about a target constant current, a comparator which compares the current of the input power supply voltage with the reference signal, a flip-flop circuit which outputs a flip-flop signal having information about a time period during which a set state is maintained, and a delay circuit which outputs the switching signal to the switching device based on the flip-flop signal to control the switching device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile