US 12,381,521 B2
Radio frequency signal phase correction in a distributed power management circuit
Nadim Khlat, Cugnaux (FR)
Assigned to Qorvo US, Inc., Greensboro, NC (US)
Filed by Qorvo US, Inc., Greensboro, NC (US)
Filed on Dec. 29, 2021, as Appl. No. 17/564,852.
Claims priority of provisional application 63/188,019, filed on May 13, 2021.
Claims priority of provisional application 63/188,026, filed on May 13, 2021.
Prior Publication US 2022/0368295 A1, Nov. 17, 2022
Int. Cl. H03F 3/24 (2006.01); H03H 11/16 (2006.01)
CPC H03F 3/245 (2013.01) [H03H 11/16 (2013.01); H03F 2200/105 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A distributed power management circuit comprising:
a power amplifier circuit comprising:
a phase shifter circuit configured to phase shift a radio frequency (RF) signal based on a phase correction signal; and
a power amplifier configured to amplify the phase-shifted RF signal based on a modulated voltage;
a distributed power management integrated circuit (PMIC) configured to generate the phase correction signal and the modulated voltage based on a modulated target voltage; and
a PMIC configured to generate the modulated target voltage based on a time-variant power envelope of the RF signal.