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:
Apr. 12, 2011
Filed:
Sep. 27, 2007
Burkhard Müller, Kassel, DE;
Frank Greizer, Niestetal, DE;
Burkhard Müller, Kassel, DE;
Frank Greizer, Niestetal, DE;
SMA Solar Technology AG, Niestetal, DE;
Abstract
The subject matter of the invention is an inverter (), more specifically for use in a photovoltaic plant () with a direct voltage input (connection terminals) for connection to a generator () and an alternating voltage output (connection terminals) for feeding into an energy supply network () as well as with a DC-AC converter () with semiconductor switch elements () and an intermediate circuit (), at least one short-circuit switch element () being connected in parallel to the generator (), so that the voltage will not exceed a maximum voltage value neither at the connection terminals () of the generator () nor between the connection terminals () of the inverter. This is achieved in that the inverter () comprises, in the intermediate circuit (), a buffer capacitor () that is connected to the generator () through a protection diode () so that said buffer capacitor () will not be discharged upon actuation of the short-circuit switch element (), the generator () working according to a clock rate in the short-circuit mode of operation.