US 11,747,843 B1
Power supply voltage drop compensation
Leon Zlotnik, Camino, CA (US); Leonid Minz, Beer Sheva (IL); and Ekram H. Bhuiyan, Sunnyvale, CA (US)
Assigned to Micron Technology, Inc., Boise, ID (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Apr. 11, 2022, as Appl. No. 17/717,638.
Int. Cl. G05F 1/46 (2006.01); G06F 1/28 (2006.01); G11C 5/14 (2006.01)
CPC G05F 1/46 (2013.01) [G06F 1/28 (2013.01); G11C 5/147 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
sensing each voltage, via a voltage sensor, of a plurality of voltages sensed from different areas of circuit components within memory partitions of a memory system;
receiving, at a voltage manager, a sensed voltage magnitude from the voltage sensor for at least two of the plurality of voltages;
determining a first particular area of circuit components to provide supplemental voltage to based on a comparison of the sensed voltage magnitudes;
receiving, at a voltage manager, data for a number of characteristics of the circuitry components;
selecting, by the voltage manager, a correction voltage that is then provided to a voltage regulator, the correction voltage being selected based on the sensed voltage magnitude from the voltage sensor for the at least one of the plurality of voltages and data for at least one of the characteristics of the circuitry components; and
as the selected first particular area voltage is increased to a target voltage, via the correction voltage, the voltage manager continues to compare sensed voltage magnitudes from different areas of circuitry components and if a different second particular area voltage that is sensed is now lower than the selected first particular area, the voltage manager can switch to the different second particular area with the lower voltage once the current first particular area being addressed has reached its target voltage.