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:
Jun. 18, 2013
Filed:
Jun. 11, 2010
Thomas M. Shearer, Macungie, PA (US);
Matthew W. Nuhfer, Bethlehem, PA (US);
Venkatesh Chitta, Center Valley, PA (US);
Kartik Iyer, Emmaus, PA (US);
Nicholas A. Hoerter, Emmaus, PA (US);
Mark S. Taipale, Harleysville, PA (US);
Thomas M. Shearer, Macungie, PA (US);
Matthew W. Nuhfer, Bethlehem, PA (US);
Venkatesh Chitta, Center Valley, PA (US);
Kartik Iyer, Emmaus, PA (US);
Nicholas A. Hoerter, Emmaus, PA (US);
Mark S. Taipale, Harleysville, PA (US);
Lutron Electronics Co., Inc., Coopersburg, PA (US);
Abstract
A load control circuit, such as a light-emitting diode (LED) driver, for controlling the amount of power delivered to an electrical load, such as an LED light source, comprises a regulation transistor adapted to be coupled in series with the load, and a feedback circuit coupled in series with the regulation transistor, whereby the load control circuit is able to control the magnitude of a load current conducted through the load from a minimum load current to a maximum load current, which is at least approximately one thousand times larger than the minimum load current. The feedback circuit generates at least one load current feedback signal representative of the magnitude of the load current. The regulation transistor operates in the linear region to control the magnitude of the load current conducted through the load in response to the magnitude of the load current determined from the load current feedback signal.