US 12,308,846 B2
Clock generation circuit and voltage generation circuit including the clock generation circuit
Hyun Chul Lee, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Mar. 25, 2024, as Appl. No. 18/615,279.
Application 18/615,279 is a division of application No. 17/308,514, filed on May 5, 2021, granted, now 11,967,961.
Claims priority of application No. 10-2021-0006849 (KR), filed on Jan. 18, 2021.
Prior Publication US 2024/0235560 A1, Jul. 11, 2024
Int. Cl. H03L 7/089 (2006.01)
CPC H03L 7/0891 (2013.01) 8 Claims
OG exemplary drawing
 
1. A clock generation circuit comprising:
an initialization control circuit generating a first initialization signal and a second initialization signal, which transition at different time points, based on a control pulse signal;
a first clock generation circuit generating a first phase clock signal and a second phase clock signal having different phases from each other through a synchronization operation based on the first initialization signal; and
a second clock generation circuit generating a third phase clock signal and a fourth phase clock signal having different phases from each other through a synchronization operation based on the second initialization signal
wherein the control pulse signal includes a pulse corresponding to a half period of a target phase clock signal, and
wherein the initialization control circuit controls a time point when the first initialization signal transitions based on a first edge of the pulse included in the control pulse signal and controls a time point when the second initialization signal transitions based on a second edge of the pulse included in the control pulse signal.