US 12,395,135 B2
Load insensitive power detection
Apostolos Samelis, Bishop's Stortford (GB)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on May 22, 2023, as Appl. No. 18/321,668.
Application 18/321,668 is a continuation of application No. 17/133,292, filed on Dec. 23, 2020, granted, now 11,689,163.
Claims priority of provisional application 62/955,755, filed on Dec. 31, 2019.
Prior Publication US 2023/0318541 A1, Oct. 5, 2023
Int. Cl. H03G 3/30 (2006.01); H03F 1/02 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01)
CPC H03F 3/195 (2013.01) [H03F 1/0238 (2013.01); H03F 3/245 (2013.01); H03F 2200/105 (2013.01); H03F 2200/318 (2013.01); H03F 2200/451 (2013.01); H03F 2200/541 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A load-insensitive power detector comprising:
a voltage sampling circuit configured to sample a first voltage from a power amplifier;
a current sampling circuit configured to sample an output current from the power amplifier, the current sampling circuit including a transformer formed from a first inductor of an output matching network that is aligned with a second inductor that is separate from the output matching network; and
a power detection circuit configured to generate a detector voltage corresponding to an incident power of the power amplifier based at least in part on the first voltage and the output current.