期刊名称:International Journal of Soft Computing & Engineering
电子版ISSN:2231-2307
出版年度:2011
卷号:1
期号:5
页码:205-208
出版社:International Journal of Soft Computing & Engineering
摘要:In the recent sub-9Onm VLSI generation, a fluctuation exists in a supply voltage due to IR-drop and inductance effects. A supply voltage fluctuation in VISI chips causes large variations in the logic delay time and power consumption. However, in conventional low-power VLSI architecture such as variable threshold voltage CMOS (VTCMOS), the threshed voltage of the transistor is fixed in advance at the system design level. As a result, VTCMOS can't compensate a supply voltage fluctuation. By employing an adaptive threshold voltage control (ATVC), minimization of power consumption under a time constraint is achieved even in the presence of n supply voltage fluctuation. Optimal granularity is discussed to minimize the total power consumption.