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. 31, 2017
Filed:
Jul. 30, 2010
Applicants:
Daryl J. Marvin, Farmington, CT (US);
Steven M. Millett, Plainville, CT (US);
Inventors:
Daryl J. Marvin, Farmington, CT (US);
Steven M. Millett, Plainville, CT (US);
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); G05F 1/46 (2006.01); H02M 7/538 (2007.01); H03K 17/567 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
G05F 1/46 (2013.01); H02M 7/538 (2013.01); H03K 17/567 (2013.01); H03K 17/6871 (2013.01); H03K 2217/0081 (2013.01);
Abstract
An exemplary power supply includes a low side switch and a high side switch. A driver controls operation of the high side switch. A bootstrap capacitor supplies power to the driver. An energy storage portion is in parallel with the bootstrap capacitor to provide control over whether a voltage of the bootstrap capacitor drops below a desired voltage. A voltage regulator is in parallel with the bootstrap capacitor for limiting current provided to the bootstrap capacitor and for regulating a voltage of the bootstrap capacitor.