US 12,463,594 B2
Power amplifiers and methods of controlling same
Fei Wang, Atlanta, GA (US); Justin Romberg, Atlanta, GA (US); Hua Wang, Atlanta, GA (US); and Shaojie Xu, Atlanta, GA (US)
Assigned to Georgia Tech Research Corporation, Atlanta, GA (US)
Appl. No. 17/801,285
Filed by Georgia Tech Research Corporation, Atlanta, GA (US)
PCT Filed Feb. 21, 2021, PCT No. PCT/US2021/018946
§ 371(c)(1), (2) Date Aug. 22, 2022,
PCT Pub. No. WO2021/168385, PCT Pub. Date Aug. 26, 2021.
Claims priority of provisional application 62/979,894, filed on Feb. 21, 2020.
Prior Publication US 2023/0118004 A1, Apr. 20, 2023
Int. Cl. H03F 1/02 (2006.01); G05B 13/02 (2006.01)
CPC H03F 1/0288 (2013.01) [G05B 13/0265 (2013.01); H03F 1/0222 (2013.01); H03F 2201/3233 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of controlling a power amplifier (PA) comprising:
determining a power back off gain and a lower bound gain for the PA; and
performing an iterative auxiliary PA turn-on setting selection process comprising:
determining an instantaneous power input to the PA;
based on the instantaneous power input, choosing a turn-on setting from one or more turn-on settings of one or more auxiliary PA paths of the PA that causes an instantaneous gain of the PA to be between the power back off gain and the lower bound gain; and
applying the chosen turn-on setting to one or more of the auxiliary PA paths;
wherein memory for the PA stores a look-up table; and
wherein the look-up table comprises a turn-on setting for one or more of the auxiliary PA paths to be chosen for potential power inputs to the PA.