ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,237, issued on Jan. 28, was assigned to Apple Inc. (Cupertino, Calif.).

"Voltage regulator with pulse frequency control" was invented by Michael Couleur (Rottach Egern, Germany), Bogdan-Eugen Matei (Munich), Ming Sun (Santa Clara, Calif.) and Bhanupriya Suresh (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure describes a system with a first counter circuit, a first converter circuit, a second counter circuit, and a second converter circuit. The first counter circuit is configured to output a first count value based on a comparison between a first reference value and a switched node value of a voltage regulator. The first ...