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. 09, 2012
Filed:
Oct. 26, 2010
Miroslaw Marek Grotkowski, North Vancouver, CA;
Milen Moussakov, New Westminster, CA;
Gregory Bernard Sheehan, Delta, CA;
Tom William Thornton, North Vancouver, CA;
Thomas George Foxall, Surrey, CA;
Miroslaw Marek Grotkowski, North Vancouver, CA;
Milen Moussakov, New Westminster, CA;
Gregory Bernard Sheehan, Delta, CA;
Tom William Thornton, North Vancouver, CA;
Thomas George Foxall, Surrey, CA;
Abstract
Holding current circuits and lighting assemblies comprising same are provided. Holding current circuits may be connected to loads to ensure that the load and holding current circuit together draw at least a holding current from a dimmer when the dimmer is in conduction. A holding current circuit may comprise a controlled current source configured to selectively draw current from a dimmer. The controlled current source draws current according to a control signal based on the conduction state of the dimmer and the sum of the currents in a load and the controlled current source. The control signal is generated by a current controller configured to generate the control signal to cause the controlled current source to draw a supplementary current at least as great as the difference between the holding current and the load current when the dimmer is in conduction and the load current is less than the holding current.