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:
Sep. 30, 2025
Filed:
Jun. 08, 2022
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
John P. Lesso, Edinburgh, GB;
John L. Melanson, Edinburgh, GB;
Cirrus Logic Inc., Austin, TX (US);
Abstract
The present disclosure relates to switching drivers for driving a transducer. A switching driver () has supply nodes for receiving supply voltages (VSH, VSL) defining at least one input voltage and an output node (). A controller () controls operation of the first switching driver to generate a drive signal for the transducer at the output node (), based on an input signal (Sin). A first capacitor () is connected between first and second capacitor nodes () and a second capacitor () is connected between the second capacitor node () and a third capacitor node (). A network of switches () selectively connects any of the driver output node, the second capacitor node and the third capacitor node to either of a respective pair of said supply nodes, with the first capacitor node connected to the first driver output node.