ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,199, issued on March 3, was assigned to SMA Solar Technology AG (Niestetal, Germany).
"Method and device for measuring an insulation resistance of a DC voltage source connected to a split intermediate circuit in mains parallel operation" was invented by Martin Putz (Kassel, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "To measure an insulation resistance of a DC voltage source connected to a split intermediate circuit, a midpoint potential of the DC voltage source is shifted by different operation of two voltage converters by way of which two poles of the DC voltage source are each connected to one of two parts of the split intermediate cir...