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:
Dec. 01, 2020
Filed:
Dec. 10, 2019
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Rupesh Khare, Edinburgh, GB;
Simon Foster, Edinburgh, GB;
Cirrus Logic, Inc., Austin, TX (US);
Abstract
This application relates to switch arrangements, in particular switch arrangements suitable for switchable connecting nodes of audio driving circuitry () that may, in use, experience a signal swing depending on an output audio driving signal (V). A switch arrangement () comprises first and second transistors (and) of the same polarity type connected in series between the first and second nodes, with a third transistor () connected between a defined voltage (V) and an intermediate node (N) between the first and second transistors. The first transistor () has a drain connection to the first node (N) and a source connection to the intermediate node (N). The second transistor () has a drain connection to the second node (N) and a source connection to the intermediate node (N). The third transistor () has a source connection to the defined voltage (V) and a drain connection to the intermediate node (N) and regulates the voltage at the intermediate node when the switch arrangement is in an off state.