The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Sep. 25, 2023
Apple Inc., Cupertino, CA (US);
Michael Couleur, Rottach-Egern, DE;
Bhanupriya Suresh, Munich, DE;
Apple Inc., Cupertino, CA (US);
Abstract
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 generate the supply voltage on the voltage node, and a capacitor, wherein a voltage rating of the capacitor is less than a magnitude of the voltage. The power converter also includes a control circuit configured to, during a first phase, cause the capacitor to accumulate a charge, and during a second phase, cause activation of the switch by causing the capacitor to transfer a portion of the charge to a parasitic capacitance of the switch.