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:
Mar. 17, 2015
Filed:
Apr. 23, 2012
Applicants:
Vietson M. Nguyen, Rockford, IL (US);
Adam Michael White, Belvidere, IL (US);
Harry Huazhen Chai, Caledonia, IL (US);
Inventors:
Vietson M. Nguyen, Rockford, IL (US);
Adam Michael White, Belvidere, IL (US);
Harry Huazhen Chai, Caledonia, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01); H02M 1/14 (2006.01);
U.S. Cl.
CPC ...
H02M 1/14 (2013.01);
Abstract
A ripple compensation apparatus comprises a ripple detection unit to detect a ripple on a dual DC bus, a waveform generation unit to generate a modulated waveform based on a base waveform and the detected ripple, and a multi-phase control signal generation unit to receive the modulated waveform and to generate at least one pulse width modulated control signal based on the modulated waveform.