This paper presents a low power and high efficiency high voltage generator circuit embedded in electrically erasable programmable read-only memory（EEPROM）.The low power is minimized by a capacitance divider circuit ...This paper presents a low power and high efficiency high voltage generator circuit embedded in electrically erasable programmable read-only memory（EEPROM）.The low power is minimized by a capacitance divider circuit and a regulator circuit using the controlling clock switch technique.The high efficiency is dependent on the zero threshold voltage（V_（th）） MOSFET and the charge transfer switch（CTS） charge pump.The proposed high voltage generator circuit has been implemented in a 0.35μm EEPROM CMOS process.Measured results show that the proposed high voltage generator circuit has a low power consumption of about 150.48μW and a higher pumping efficiency（83.3%） than previously reported circuits.This high voltage generator circuit can also be widely used in low-power flash devices due to its high efficiency and low power dissipation.展开更多
We study the uniform property Γ for separable simple C^(*)-algebras which have quasitraces and may not be exact. We show that a stably finite separable simple C^(*)-algebra A with the strict comparison and uniform pr...We study the uniform property Γ for separable simple C^(*)-algebras which have quasitraces and may not be exact. We show that a stably finite separable simple C^(*)-algebra A with the strict comparison and uniform property Γ has tracial approximate oscillation zero and stable rank one. Moreover in this case,its hereditary C^(*)-subalgebras also have a version of uniform property Γ. If a separable non-elementary simple amenable C^(*)-algebra A with strict comparison has this hereditary uniform property Γ, then A is Z-stable.展开更多
基金supported by the National Natural Science Foundation of China(No.61072010)
文摘This paper presents a low power and high efficiency high voltage generator circuit embedded in electrically erasable programmable read-only memory（EEPROM）.The low power is minimized by a capacitance divider circuit and a regulator circuit using the controlling clock switch technique.The high efficiency is dependent on the zero threshold voltage（V_（th）） MOSFET and the charge transfer switch（CTS） charge pump.The proposed high voltage generator circuit has been implemented in a 0.35μm EEPROM CMOS process.Measured results show that the proposed high voltage generator circuit has a low power consumption of about 150.48μW and a higher pumping efficiency（83.3%） than previously reported circuits.This high voltage generator circuit can also be widely used in low-power flash devices due to its high efficiency and low power dissipation.
基金supported by National Science Foundation of USA (Grant No.DMS1954600)the Research Center for Operator Algebras in East China Normal University which is supported by Shanghai Key Laboratory of Pure Mathematics and Mathematical Practice,Science and Technology Commission of Shanghai Municipality (Grant No.22DZ2229014)。
文摘We study the uniform property Γ for separable simple C^(*)-algebras which have quasitraces and may not be exact. We show that a stably finite separable simple C^(*)-algebra A with the strict comparison and uniform property Γ has tracial approximate oscillation zero and stable rank one. Moreover in this case,its hereditary C^(*)-subalgebras also have a version of uniform property Γ. If a separable non-elementary simple amenable C^(*)-algebra A with strict comparison has this hereditary uniform property Γ, then A is Z-stable.
