Patent ID: 11870396
Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. The power amplifier system of claim 7, wherein:
the calibration subsystem further comprises:
a comparator circuit to generate a comparator output based on comparing the detection signal with a valley reference signal that corresponds to the predetermined target valley level; and

the calibration engine is coupled with the valley detector via the comparator circuit and configured, for each gain setting, to compute the respective one of the plurality of compensation values by:
iteratively directing the supply modulator to generate each of a plurality of candidate compensated supply voltage levels at the gain setting while monitoring the comparator output until the comparator output indicates, at one of the candidate compensated supply voltage levels, that the present output valley level is substantially at the predetermined target valley level; and
outputting the respective one of the plurality of compensation values for the gain setting based on the one of the candidate compensated supply voltage levels.