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:
Jun. 11, 2002
Filed:
Dec. 07, 2000
Applicant:
Inventor:
Richard Shaun Welches, Amherst, NH (US);
Assignee:
Semikron, Inc., Hudson, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 ; H02M 7/04 ; H02H 7/122 ;
U.S. Cl.
CPC ...
H02M 1/12 ; H02M 7/04 ; H02H 7/122 ;
Abstract
The invention in the simplest form is an improved transformerless 3 phase power inverter topology and control method for power distribution systems. This 3 phase power inverter system provides the necessary output voltage and current waveform regulation, harmonic distortion rejection, very low output impedance, and ultra low DC offset of the output AC power, even when exposed to a high magnitude of the non-linear, single phase, or the unbalanced loading.