Patent ID: 7733679

Claim:
A solar inverter for feeding current produced by a d.c. voltage source into an a.c. voltage grid, said d.c. voltage source being formed by a solar module, said inverter comprising a bridge inverter, a transformer having a primary winding, a rectifier, a buck chopper including a full bridge and an output filter; wherein a control device is provided for controlling the parameters of the inverter; wherein a device for detecting the current produced by the d.c. voltage source and flowing over the primary winding of the transformer is provided, which device is connected to the control device; and wherein the bridge inverter is designed for adapting a dead time for the switching elements as a function of the mean value of the current detected flowing over the primary winding of the transformer by selecting the dead time from a table with correspondingly stored data for the most varying mean values, the dead time representing a time of the switching elements for switching over from one switching element to a further switching element connected in series of the bridge inverter, thereby ensuring that parasitic capacitances stored in the switching elements of the bridge inverter can be completely recharged and no excessively long switching pauses can occur at the same time.