	US 12,191,767 B2
	Apparatus and method for applying dynamic compensation to feedback signal generated from loadline of voltage regulator
Man Pun Chan, San Jose, CA (US); Hao-Ping Hong, San Jose, CA (US); Yung-Chih Yen, San Jose, CA (US); Chien-Hui Wang, Hsinchu (TW); Cheng-Hsuan Fan, Hsinchu (TW); and Jian-Rong Huang, Hsinchu (TW)
Assigned to MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed on Apr. 13, 2022, as Appl. No. 17/719,401.
Claims priority of provisional application 63/195,733, filed on Jun. 2, 2021.
Prior Publication US 2022/0393587 A1, Dec. 8, 2022
Int. Cl. H02M 3/156 (2006.01); H02M 1/00 (2006.01)

CPC H02M 3/156 (2013.01) [H02M 1/0009 (2021.05)]

18 Claims

1. A feedback loop circuit of a voltage regulator comprising:

a loadline, arranged to generate a feedback signal according to a sensed current signal that provides information of an inductor current of the voltage regulator, and output the feedback signal to a controller circuit of the voltage regulator for regulating an output voltage of the voltage regulator; and

a compensation circuit, arranged to generate a compensation signal to compensate for a deviation of the output voltage, wherein in response to a specific event that results in disturbance of the inductor current, the compensation circuit is arranged to make the feedback signal remain unchanged by injecting the compensation signal to the feedback signal generated from the load line.