ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,796, issued on Oct. 21, was assigned to Apple Inc. (Cupertino, Calif.).

"Bootstrapped power switch for a negative buck-boost low-side" was invented by Michael Couleur (Rottach-Egern, Germany) and Bhanupriya Suresh (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power converter with a bootstrapped switch is disclosed. A power converter is configured to generate a regulated supply voltage and includes an inductor coupled between a ground node and a switching node. The power converter further includes a switch (e.g., a low-side switch) coupled between the switching node and a supply voltage node, wherein the power converter is configured to ge...