ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,421, issued on Aug. 25, was assigned to Renesas Design (UK) Ltd. (Bourne End, Great Britain).
"Signal amplifier" was invented by Holger Petersen (Pastetten, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A signal amplifier includes a driver and a network of switches forming a power converter coupled to a H-bridge circuit. The power converter has a flying capacitor and an inductor. The H-bridge circuit receives a converted voltage from the power converter and applies an output modulated voltage to a load, for instance a loudspeaker. The driver drives the network of switches in a neutral state, a first state and a second state. In the neutral ...