US 12,143,067 B2
Multi-transmission 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 Feb. 10, 2022, as Appl. No. 17/668,481.
Prior Publication US 2023/0253924 A1, Aug. 10, 2023
Int. Cl. H03F 1/02 (2006.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01)
CPC H03F 1/0222 (2013.01) [H03F 3/245 (2013.01); H04B 1/0475 (2013.01); H03F 2200/105 (2013.01); H03F 2200/336 (2013.01); H03F 2200/451 (2013.01); H04B 2001/045 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A multi-transmission power management circuit comprising:
at least two quadrature power amplifier circuits each configured to amplify a respective one or two radio frequency (RF) signals based on one or more of at least two modulated voltages, wherein each of the at least two quadrature power amplifier circuits comprises a pair of power amplifiers each configured to amplify a respective composite signal constructed from the respective one or two RF signals; and
an envelope tracking (ET) integrated circuit (ETIC) comprising:
at least two voltage circuits each configured to generate a respective one of the at least two modulated voltages;
a switch circuit provided between the at least two voltage circuits and the at least two quadrature power amplifier circuits; and
a control circuit configured to:
determine that the at least two quadrature power amplifier circuits are configured to amplify an identical one of the respective one or two RF signals;
control the switch circuit to provide any of the at least two modulated voltages to the at least two quadrature power amplifier circuits to amplify the identical one of the respective one or two RF signals for concurrent transmission;
determine that any of the at least two quadrature power amplifier circuits are configured to amplify a respective two of the respective one or two RF signals; and
control the switch circuit to provide the at least two modulated voltages to the determined any of the at least two quadrature power amplifier circuits to amplify the respective two of the respective one or two RF signals.