US 12,176,866 B2
RF power amplifier system having a multi-output supply generator and low-frequency turn off switch
James Garrett, Windham, NH (US); Sri Harsh Pakala, Chandler, AZ (US); Brendan Metzner, North Billerica, MA (US); Ivan Duzevik, Portland, ME (US); David J. Perreault, Cambridge, MA (US); John R. Hoversten, Arlington, MA (US); and Yevgeniy A. Tkachenko, Belmont, MA (US)
Assigned to Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed on Jul. 17, 2023, as Appl. No. 18/353,336.
Application 18/353,336 is a continuation of application No. 17/572,024, filed on Jan. 10, 2022.
Application 17/572,024 is a continuation of application No. 17/281,076, granted, now 11,245,367, issued on Feb. 8, 2022, previously published as PCT/US2020/041162, filed on Jul. 8, 2020.
Claims priority of provisional application 62/934,651, filed on Nov. 13, 2019.
Claims priority of provisional application 62/871,243, filed on Jul. 8, 2019.
Prior Publication US 2023/0378921 A1, Nov. 23, 2023
Int. Cl. H03F 3/21 (2006.01); H02M 3/155 (2006.01); H03F 1/02 (2006.01)
CPC H03F 3/211 (2013.01) [H02M 3/155 (2013.01); H03F 1/0205 (2013.01); H03F 2200/451 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A radio frequency power amplifier system comprising:
a supply generator configured to provide a plurality of supply voltages including at least two independently-regulated supply voltages and one or more additional supply voltages in a prescribed relation to the at least two independently-regulated supply voltages;
a supply modulator configured to switch among the plurality of supply voltages to provide a supply voltage to a power amplifier (PA); and
a low-frequency turn-off switch connected between the supply modulator and the PA to selectively connect or disconnect the PA and the supply modulator such that the supply modulator is in an off condition when the low-frequency turn-off switch is open.