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:
Dec. 16, 2014
Filed:
Dec. 10, 2010
Shyam Somayajula, Bangalore, IN;
Nageswara Nalam, Bangalore, IN;
Arnold James Dsouza, Bangalore, IN;
Ankit Seedher, Bangalore, IN;
Shyam Somayajula, Bangalore, IN;
Nageswara Nalam, Bangalore, IN;
Arnold James Dsouza, Bangalore, IN;
Ankit Seedher, Bangalore, IN;
ST-Ericsson SA, Plan-les-Ouates, CH;
Abstract
A current controlling circuit comprises a DC power source, an inductor, a N-channel Metal Oxide Semiconductor (NMOS), one or more LEDs connected in series, a first resistor and a switching arrangement. The positive terminal of the DC power source is connected to the inductor in series. The series of LED is connected in series with the inductor and the first resistor. According to an embodiment the switching arrangement comprises a second resistor, a first switch and a second switch. The second resistor is connected in series with the second switch and connected in parallel with the first switch. The switching arrangement is connected in series with the first resistor and the negative terminal of the DC supply.