US 12,385,959 B2
Method and system for component mismatch compensation
Mark R. Peting, Yamhill, OR (US); Dale A. Beyer, Portland, OR (US); Donald Allen Pearce, Beaverton, OR (US); and Miles Reuben Thompson, Portland, OR (US)
Assigned to SKYWORKS SOLUTIONS, INC., Irvine, CA (US)
Filed by SKYWORKS SOLUTIONS, INC., Irvine, CA (US)
Filed on Sep. 29, 2022, as Appl. No. 17/936,458.
Claims priority of provisional application 63/250,755, filed on Sep. 30, 2021.
Prior Publication US 2023/0096484 A1, Mar. 30, 2023
Int. Cl. H03F 3/45 (2006.01); G01R 29/08 (2006.01); H03F 3/195 (2006.01)
CPC G01R 29/0871 (2013.01) [H03F 3/195 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
14. A system of compensating for component mismatch in an amplifier circuit, the system comprising:
an amplifier circuit including a plurality of circuit elements;
a current ratio measurement engine configured to provide a plurality of circuit configurations, each configuration including two or more circuit elements of the plurality of circuit elements;
a digital-to-analog converter configured to drive a bias current through the two or more circuit elements for each of the plurality of circuit configurations to obtain a plurality of current ratio measurements;
a modulator configured to receive a set of adjustment parameters that are calculated based on the plurality of current ratio measurements and to reconfigure the amplifier circuit in accordance with the set of adjustment parameters.