Patent ID: 9058046
Filing Date: 2015-06-16
Classification: G05F,G11C

Abstract:
1. A voltage regulation circuit comprising: a first reference voltage generator generating a variable first reference voltage, said variable first reference voltage being closer to a supply voltage when a leakage condition is high as compared to when said leakage condition is low; a second reference voltage generator generating a variable second reference voltage using said variable first reference voltage and said supply voltage, said variable second reference voltage being closer to said supply voltage when said leakage condition is low as compared to when said leakage condition is high; a power gate device; a pre-charge device; and, a voltage line electrically connected to said power gate device and said pre-charge device, said voltage line supplying power to at least one additional device, said pre-charge device turning on and pulling said voltage line toward said supply voltage in response to a pre-charge command signal, and said power gate device being controlled by said variable second reference voltage and turning on when an actual voltage on said voltage line is less than a difference between said variable second reference voltage and a threshold voltage of said power gate device so as to limit voltage changes on said voltage line due to leakage current in said at least one additional device.