US 11,722,048 B2
Voltage generating circuits including assist circuits and operating methods thereof
Gyuseong Kim, Suwon-si (KR); Hyun-Jin Shin, Hwaseong-si (KR); and Sanggyeong Won, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd.
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 23, 2021, as Appl. No. 17/560,512.
Claims priority of application No. 10-2021-0055279 (KR), filed on Apr. 28, 2021.
Prior Publication US 2022/0352807 A1, Nov. 3, 2022
Int. Cl. H02M 1/00 (2006.01); G11C 5/14 (2006.01); H02M 3/07 (2006.01)
CPC H02M 1/0045 (2021.05) [G11C 5/145 (2013.01); H02M 3/07 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A voltage generating circuit comprising:
an assist circuit configured to generate an assist signal indicating an enable mode, when a first power supply voltage is lower than an assist reference voltage;
a compensation circuit configured to receive the first power supply voltage and generate a compensation signal based on the first power supply voltage, based on the assist signal indicating the enable mode;
an internal voltage converter configured to receive the first power supply voltage and generate a regulated voltage based on the first power supply voltage; and
a charge pump circuit configured to generate a pump voltage based on the regulated voltage and based on the compensation signal,
wherein the compensation signal compensates the regulated voltage.