US 11,953,926 B2
Voltage regulation schemes for powering multiple circuit blocks
Bang Li Liang, Ottawa (CA); Guillaume Alexandre Blin, Carlisle, MA (US); and Thomas Obkircher, Santa Ana, CA (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Jun. 16, 2022, as Appl. No. 17/807,316.
Claims priority of provisional application 63/202,887, filed on Jun. 29, 2021.
Claims priority of provisional application 63/202,889, filed on Jun. 29, 2021.
Prior Publication US 2022/0413534 A1, Dec. 29, 2022
Int. Cl. G05F 1/575 (2006.01); G05F 1/46 (2006.01); G05F 1/577 (2006.01); H04B 1/40 (2015.01)
CPC G05F 1/577 (2013.01) [G05F 1/468 (2013.01); G05F 1/575 (2013.01); H04B 1/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A front end system comprising:
a reference voltage circuit configured to receive power from a power supply voltage and to generate a reference voltage;
a plurality of circuit blocks each selectively enabled by a corresponding one of a plurality of enable signals, the plurality of circuit blocks including a fuse circuit, a radio frequency circuit, and a digital circuit; and
a programmable voltage regulator configured to generate a programmable regulated voltage based on the reference voltage and to provide the programmable regulated voltage to the plurality of circuit blocks, the programmable regulated voltage having a voltage level that changes based on a selection of the circuit blocks that are enabled by the plurality of enable signals, the programmable voltage level operating at a high voltage level when the fuse circuit is enabled and at a low voltage level when the digital circuit is enabled and the fuse circuit and the radio frequency circuit are disabled.