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. 26, 2015
Filed:
Sep. 10, 2010
Applicant:
Steven Lyons, Kitchener, CA;
Inventor:
Steven Lyons, Kitchener, CA;
Assignee:
Lumastream Canada ULC, Calgary, CA;
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H05B 33/08 (2006.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); Y02B 20/346 (2013.01); Y10S 323/901 (2013.01);
Abstract
A bootstrap assist circuit and a startup circuit comprising a voltage controlled switch and a startup ramp voltage generator connected to the voltage controlled switch that will control a high side switch, a dimming interface or an enable/disable input function. Said system is used to provide a bootstrap technique to continuously switch a floating high side switch (MOSFET) by continuously charging a capacitor and then 'level shifting' said capacitor voltage across the gate and source of the said high side switch to turn the switch on.