US 12,242,293 B2
Low-noise high efficiency bias generation circuits and method
Tae Youn Kim, Irvine, CA (US); and Robert Mark Englekirk, Littleton, CO (US)
Assigned to pSemi Corporation, San Diego, CA (US)
Filed by pSemi Corporation, San Diego, CA (US)
Filed on May 23, 2023, as Appl. No. 18/322,181.
Application 18/322,181 is a continuation of application No. 17/530,290, filed on Nov. 18, 2021, granted, now 11,662,755.
Application 17/530,290 is a continuation of application No. 16/744,027, filed on Jan. 15, 2020, granted, now 11,188,106, issued on Nov. 30, 2021.
Application 16/744,027 is a continuation of application No. 16/143,142, filed on Sep. 26, 2018, granted, now 10,571,940, issued on Feb. 25, 2020.
Application 16/143,142 is a continuation of application No. 15/688,597, filed on Aug. 28, 2017, granted, now 10,114,391, issued on Oct. 30, 2018.
Application 15/688,597 is a continuation of application No. 15/059,206, filed on Mar. 2, 2016, granted, now 9,778,669, issued on Oct. 3, 2017.
Application 15/059,206 is a continuation of application No. 14/462,193, filed on Aug. 18, 2014, granted, now 9,429,969, issued on Aug. 30, 2016.
Application 14/462,193 is a continuation of application No. 13/016,875, filed on Jan. 28, 2011, granted, now 8,816,659, issued on Aug. 26, 2014.
Claims priority of provisional application 61/372,086, filed on Aug. 9, 2010.
Claims priority of provisional application 61/371,652, filed on Aug. 6, 2010.
Prior Publication US 2023/0384811 A1, Nov. 30, 2023
Int. Cl. G05F 1/56 (2006.01); G05F 1/46 (2006.01); H03F 1/30 (2006.01)
CPC G05F 1/56 (2013.01) [G05F 1/468 (2013.01); H03F 1/303 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A system comprising:
a bias signal generator configured to generate a reference voltage signal based at least in part on a supply voltage signal;
a first charge pump configured to generate a positive voltage signal and maintain a voltage level of the positive voltage signal during a switching event, wherein the first charge pump comprises a first charge pump capacitor, wherein the first charge pump is configured to employ the first charge pump capacitor to generate a portion of the positive voltage signal based at least in part on the reference voltage signal, wherein the reference voltage signal has a voltage level that is less than the voltage level of the positive voltage signal; and
at least one radio frequency (RF) switch configured to receive the positive voltage signal and perform the switching event.