US 12,003,219 B2
Method and device for selectively supplying voltage to multiple amplifiers using switching regulator
Jooseung Kim, Suwon-si (KR); Dongil Yang, Suwon-si (KR); and Youngmin Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 20, 2023, as Appl. No. 18/111,620.
Application 18/111,620 is a continuation of application No. 17/207,947, filed on Mar. 22, 2021, granted, now 11,588,443.
Application 17/207,947 is a continuation of application No. 17/011,278, filed on Sep. 3, 2020, granted, now 10,958,219, issued on Mar. 23, 2021.
Application 17/011,278 is a continuation of application No. 16/665,327, filed on Oct. 28, 2019, granted, now 10,804,855, issued on Oct. 13, 2020.
Claims priority of application No. 10-2018-0129271 (KR), filed on Oct. 26, 2018.
Prior Publication US 2023/0208361 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/04 (2006.01); G05F 1/56 (2006.01); H03F 1/02 (2006.01); H03F 1/26 (2006.01); H03F 3/193 (2006.01); H03F 3/21 (2006.01); H03F 3/68 (2006.01)
CPC H03F 1/0227 (2013.01) [G05F 1/56 (2013.01); H03F 1/26 (2013.01); H03F 3/193 (2013.01); H03F 3/211 (2013.01); H03F 3/68 (2013.01); H03F 2200/102 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A portable communication device comprising:
a plurality of antennas;
a first communication chip connected with at least one antenna of the plurality of antennas, and including a first amplifier for signal transmission, and a first circuit portion including a first linear regulator, the first amplifier connected with the first circuit portion including the first linear regulator;
a second communication chip connected with at least one antenna of the plurality of antennas, and including a second amplifier for signal transmission, and a second circuit portion including a second linear regulator, the second amplifier connected with the second circuit portion including the second linear regulator; and
a switching regulator disposed outside the first communication chip and the second communication chip, and connected with each of the first circuit portion including the first linear regulator and the second circuit portion including the second linear regulator,
wherein the first circuit portion, including the first linear regulator, is configured to supply a first voltage to the first amplifier based on a first envelope signal of a first input radio-frequency (RF) signal so that the regulated first voltage can be used for envelope tracking based at least on a first signal to be output from the switching regulator,
wherein the second circuit portion, including the second linear regulator, is configured to supply a second voltage to the second amplifier based on a second envelope signal of a second input radio-frequency (RF) signal so that the second voltage can be used for envelope tracking based at least on a second signal to be output from the switching regulator.