US 12,483,237 B2
Power-up initialization circuit
Lik T. Cheng, San Jose, CA (US); Zijie Guo, San Jose, CA (US); and Agastya Gogoi, San Jose, CA (US)
Assigned to MEDIATEK INC., Hsinchu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Nov. 2, 2023, as Appl. No. 18/500,140.
Claims priority of provisional application 63/384,956, filed on Nov. 24, 2022.
Prior Publication US 2024/0178821 A1, May 30, 2024
Int. Cl. H03K 17/22 (2006.01); H03K 3/037 (2006.01); H03K 5/133 (2014.01); H03K 5/00 (2006.01)
CPC H03K 17/22 (2013.01) [H03K 3/0375 (2013.01); H03K 5/133 (2013.01); H03K 2005/0015 (2013.01)] 18 Claims
OG exemplary drawing
 
10. A power-up initialization method comprising:
applying, by a delay chain circuit, a predetermined delay amount to a power supply voltage for generating a delayed output voltage; and
generating and outputting at least one power-up initialization signal in response to the delayed output voltage;
wherein a function of the power-up initialization method is process variation independent.