US 12,407,350 B2
Voltage level shifter with programmable high supply voltage and high supply voltage-dependent variable low supply voltage
Siva Kumar Chinthu, Bangalore (IN); Venkatesh Periyapatna Gopinath, Fremont, CA (US); Suresh Pasupula, Bangalore (IN); and Devesh Dwivedi, Bangalore (IN)
Assigned to GlobalFoundries U.S. Inc., Malta, NY (US)
Filed by GlobalFoundries U.S. Inc., Malta, NY (US)
Filed on Jul. 11, 2023, as Appl. No. 18/350,305.
Prior Publication US 2025/0023564 A1, Jan. 16, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H03K 19/0175 (2006.01); H03K 19/00 (2006.01); H03K 19/003 (2006.01)
CPC H03K 19/017581 (2013.01) [H03K 19/0013 (2013.01); H03K 19/0016 (2013.01); H03K 19/00384 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A structure comprising:
a voltage level shifter including a low supply voltage node and a high supply voltage node;
a programmable voltage generator outputting a high supply voltage to the high supply voltage node; and
a variable voltage generator outputting a low supply voltage to the low supply voltage node, wherein the low supply voltage is dependent on and lower than the high supply voltage.