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. 05, 2021
Filed:
Oct. 17, 2018
Applicant:
Ams International Ag, Jona, CH;
Inventors:
Mark Niederberger, Einsiedein, CH;
Lukas Perktold, Hinwil, CH;
Assignee:
ams International AG, Jona, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 5/00 (2006.01); H04R 19/04 (2006.01); H03F 3/70 (2006.01); H04R 3/04 (2006.01);
U.S. Cl.
CPC ...
H04R 19/04 (2013.01); H03F 3/70 (2013.01); H04R 3/04 (2013.01); H03F 2200/03 (2013.01); H03F 2200/165 (2013.01); H04R 2201/003 (2013.01);
Abstract
An interface circuit comprises a signal path including a front-end charge amplifier coupling an input of the interface circuit to an output of the interface circuit, and a DC control loop separate from the signal path. In some implementations, the interface circuit is part of a MEMS sensor that includes a MEMS transducer having an output coupled to the input of the interface circuit. The interface circuit can, in some cases, allow faster settling of the circuit to its steady-state operating point.