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:
Oct. 20, 2015
Filed:
Jan. 10, 2013
Fairchild Semiconductor Corporation, San Jose, CA (US);
Bruce Armstrong, San Mateo, CA (US);
Alexander H. Craig, Viera, FL (US);
Fairchild Semiconductor Corporation, San Jose, CA (US);
Abstract
This document discloses, among other things, apparatus and methods for dimmer control. In an apparatus example, a circuit can include an input configured to receive a control signal, a controller configured to modulate a pulse width of a pulse train using the control signal when the controller is enabled, an output configured to provide the pulse train to a driver, and first and second current limit detectors configured to receive load current information of the driver and to terminate an active pulse of the controller when a value of the load current information exceeds a threshold.