US 12,244,274 B2
Device, method and computer program product for amplification of an input signal
John Christopher Clifton, Basingstoke (GB)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Atsugi (JP)
Appl. No. 17/422,946
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Atsugi (JP)
PCT Filed Feb. 14, 2020, PCT No. PCT/GB2020/050353
§ 371(c)(1), (2) Date Jul. 14, 2021,
PCT Pub. No. WO2020/169951, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 1902264 (GB), filed on Feb. 19, 2019.
Prior Publication US 2022/0131508 A1, Apr. 28, 2022
Int. Cl. H03F 3/24 (2006.01); H03F 1/56 (2006.01)
CPC H03F 3/245 (2013.01) [H03F 1/56 (2013.01); H03F 2200/366 (2013.01); H03F 2200/451 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A device for amplification of an input signal, the device comprising:
amplification circuitry comprising a plurality of switchable transistors;
a variable supply voltage input connected to the amplification circuitry; and
controller circuitry configured to:
set a target output power level of the device; and
control at least one of: (1) a state of connection between the plurality of switchable transistors to change an effective physical dimension of the amplification circuitry, or (2) a level of the variable supply voltage input, based on a predetermined load impedance, to cause the amplification circuitry to amplify the input signal to the set target output power level for the predetermined load impedance,
wherein the device further comprises a plurality of input terminals selectively connectable to the amplification circuitry, and
the controller circuitry is further configured to control a state of connection between the plurality of input terminals and the amplification circuitry in accordance with an operation of the device.