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:
May. 21, 2013
Filed:
Jul. 20, 2009
Gallen Ka Leung Tsui, Brampton, CA;
Philip Y. W. Tsui, Brampton, CA;
Gallen Ka Leung Tsui, Brampton, CA;
Philip Y. W. Tsui, Brampton, CA;
Other;
Abstract
A method and apparatus are provided for operating a control switch. In one embodiment, the control switch includes an input terminal coupled to an alternating current (AC) power supply, a load terminal coupled to a load, a triac circuit coupled to the input terminal and the load terminal, a microcontroller and a power supply. The triac circuit may be configured to receive a triggering voltage and provide an activation pulse to the load based on one or more triggering voltage signals supplied by the microcontroller. In another embodiment, the power supply may be configured to step down AC power received from the input terminal and supply line voltage to the microcontroller.