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:
Mar. 16, 2021
Filed:
Jul. 04, 2018
Applicant:
Ams International Ag, Rapperswil, CH;
Inventor:
Fridolin Michel, Rapperswil, CH;
Assignee:
ams International AG, Rapperswil, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01); H03M 1/12 (2006.01); G11C 27/02 (2006.01); H03M 1/68 (2006.01); H03M 1/86 (2006.01);
U.S. Cl.
CPC ...
H03M 1/1245 (2013.01); G11C 27/024 (2013.01); H03M 1/68 (2013.01); H03M 1/86 (2013.01);
Abstract
An input current (I) is transformed into an output integrated voltage (V) using a parallel connection of an operational transconductance amplifier and an integration capacitor. The output integrated voltage is reduced by repeatedly discharging the integration capacitor through a feedback loop via a digital-to-analog converter generating feedback pulses, a feedback clock period (T) defining time intervals between successive rising edges of the feedback pulses. Sampling is performed during an extended feedback clock period (T*) after a lapse of a plurality of feedback clock periods (T).