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:
Nov. 21, 1989
Filed:
Dec. 16, 1988
Applicant:
Inventors:
Derrick I Roe, Rockford, IL (US);
Christopher J Rozman, Delavan, WI (US);
Bradley J Recker, Rockford, IL (US);
Assignee:
Sundstrand Corporation, Rockford, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ; H02M / ;
U.S. Cl.
CPC ...
363 98 ; 363 37 ; 363 41 ;
Abstract
Power inverters for converting DC power into AC power often produce a DC component in the inverter output which is objectionable. In order to overcome this problem, an inverter control according to the present invention detects the magnitude of the DC component in the inverter AC output power and adjusts the time of selected rising and falling edges of control waveforms for switches in the inverter to reduce the magnitude of the DC component.