Abstract: The invention relates to an inverter casing, said inverter casing comprising in the bottom at least one depression for receiving heat dissipating electric components, coils in particular.
Type:
Grant
Filed:
May 7, 2008
Date of Patent:
May 11, 2010
Assignee:
SMA Solar Technology AG.
Inventors:
Sven Bremicker, Andreas Donth, Stefan Domagala
Abstract: An inverter is devised to avoid high-frequency voltages at input terminals and to allow good efficiency thanks to its simple and cost-optimized circuit layout. This is achieved by a method of converting a direct current voltage, more specifically from a photovoltaic source of direct current voltage, into an alternating current voltage at a frequency through a bridge circuit comprising switching elements (V1-V 4) and free-wheeling elements (D1-D4), said switching elements (V1-V4) being on the one side gated at the frequency and on the other side clocked at a high clock rate, a direct current voltage circuit, an alternating current voltage circuit and a plurality of free-wheeling phases being provided.
Type:
Grant
Filed:
June 16, 2005
Date of Patent:
August 12, 2008
Assignee:
SMA Solar Technology AG.
Inventors:
Matthais Victor, Frank Greizer, Sven Bremicker, Uwe Hübler