US Patent Issued to ABB Schweiz on July 21 for "Voltage clamping circuit for solid state circuit breakers" (North Carolina Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,209, issued on July 21, was assigned to ABB Schweiz AG (Baden, Switzerland).

"Voltage clamping circuit for solid state circuit breakers" was invented by Shuyan Zhao (Raleigh, N.C.), Chunmeng Xu (Raleigh, N.C.), Lakshmi Ravi (Raleigh, N.C.) and Zhou Dong (Raleigh, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power semiconductor circuit is provided for clamping the voltage across the circuit during a fault. The circuit may include a power semiconductor switch, a clamping branch coupled in parallel with the power semiconductor switch, a snubber branch coupled in parallel with the power semiconductor switch and the clamping branch, and an isola...