Closed-loop power control using multiple feedback loops

A radio frequency transmitting system comprising:

• a first amplifier configured to amplify an input signal to generate an amplified signal, wherein the input signal is amplified by the first amplifier in accordance with a programmable gain;
• a second amplifier configured to transmit an output signal based on the amplified signal, wherein the output signal is transmitted at a particular power by the second amplifier;
• a power detector configured to measure the particular power at which the output signal is transmitted by the second amplifier;
• and
• a calibration module configured to adjust the programmable gain of the first amplifier by a calibration offset so that the particular power at which the output signal is transmitted by the second amplifier, as measured by the power detector, matches a predetermined power, wherein the calibration module includes
• a plurality of offset generation modules, wherein each of the plurality of offset generation modules is configured to generate a respective calibration offset candidate based on the particular power at which the output signal is transmitted by the second amplifier as measured by the power detector, and
• a selection module configured to select, based on the predetermined power, one of the plurality of calibration offset candidates as the calibration offset.