US Patent Issued to Telefonaktiebolaget LM Ericsson on April 22 for "Bias circuit and power amplifier circuit" (Swedish Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,925, issued on April 22, was assigned to Telefonaktiebolaget LM Ericsson (Publ) (Stockholm).

"Bias circuit and power amplifier circuit" was invented by Christian Elgaard (Lund, Sweden) and Henrik Sjoland (Lund, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bias circuit for a PA. A first transistor has its drain terminal and its gate terminal connected to a first circuit node and its source terminal connected to a first supply terminal, a first current source connected to the first circuit node, and a first resistor connected between the first and second circuit nodes. A second transistor receives a first component of a differential input si...