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.

Date of Patent:
Dec. 29, 2015

Filed:

Dec. 17, 2012
Applicant:

Osram Gmbh, Munich, DE;

Inventors:

Francesco Angelin, Mogliano Veneto, IT;

Paolo De Anna, Riese Pio X, IT;

Assignee:

OSRAM GmbH, Munich, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); G05F 1/10 (2006.01); H02M 3/156 (2006.01); H05B 33/08 (2006.01); H02M 3/06 (2006.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); H02M 3/06 (2013.01); H05B 33/0815 (2013.01); Y10T 307/352 (2015.04);
Abstract

A converter, for feeding a load via an inductor with a current having a controlled intensity between a maximum and a minimum level, includes a switch to permit or prevent, respectively, current towards said inductor, a first current sensor sensitive to the current flowing through switch when the switch is on, a second current sensor sensitive to the current flowing through said inductor when the switch is off, drive circuitry to turn the switch off and on upon receiving a first and a second logic signal, respectively, and comparison circuitry coupled to the first and the second current sensors to generate first and the second logic signals when, respectively: the current intensity detected by the first current sensor is offset a given amount with respect to the maximum level, and the current intensity detected by the second current sensor is offset a given amount with respect to the minimum level.


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