US 12,488,843 B2
Voltage generating circuit
Liang-Hsiang Chiu, Hsinchu County (TW)
Assigned to Winbond Electronics Corp., Taichung (TW)
Filed by Winbond Electronics Corp., Taichung (TW)
Filed on Apr. 19, 2024, as Appl. No. 18/639,995.
Claims priority of application No. 112119303 (TW), filed on May 24, 2023.
Prior Publication US 2024/0395337 A1, Nov. 28, 2024
Int. Cl. G11C 16/30 (2006.01); H02M 1/00 (2006.01); H02M 3/155 (2006.01)
CPC G11C 16/30 (2013.01) [H02M 1/0048 (2021.05); H02M 3/155 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A voltage generating circuit, comprising:
a first comparator, which compares a first reference voltage with a first feedback voltage generated based on a first output node, and generates a first control signal according to a comparison result;
a boost circuit, which is coupled to the first comparator and the first output node, and is controlled by the first control signal to output a boost voltage to the first output node;
a second comparator, which compares a second reference voltage with a second feedback voltage generated based on a second output node, and generates a second control signal according to a comparison result; and
an output circuit, which is coupled to the first output node, the second output node and the second comparator, receives the boost voltage, and is controlled by the second control signal to convert the boost voltage into a drive voltage and output the drive voltage to the second output node,
wherein the boost voltage is determined by the first reference voltage, and the drive voltage is determined by the second reference voltage.