ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,552, issued on June 23, was assigned to PSEMI Corp. (San Diego).
"Protection circuit for power amplifiers" was invented by Shota Ishihara (San Diego) and Tero Ranta (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "Various methods and circuital arrangements for protection of a power amplifier (PA) from high input power conditions are presented. According to one aspect, a protection circuit coupled to a stage of the PA limits a current through the stage during the high input power conditions. Limiting of the current is provided by a current limiter circuit that includes a current generator coupled to a current mirror. The current is limited t...