绝热式渐次充电技术在CMOS电路中的应用

Application of adiabatic stepwise charging technique in CMOS Circuit

随着集成电路技术的不断发展,功耗带来的挑战也日益突出,因此各种节能方法被不断地提出。基于以上所提及的功耗问题,提出一种绝热式渐次充电技术,它能够有效地降低CMOS电路中的能量损耗,达到节能的目的,同时还能降低电路中信号传播时延。这种绝热式渐次充电驱动器是由若干电容、直流电源和相关MOSFET组成的,在这种电路中,渐次式电压的产生几乎不消耗能量。为了凸显该技术的优势,将这种方法与传统的变化电压降低功耗的方法进行比较,经过最终的仿真对比发现该技术比传统的变化电压节能方法在能耗上大幅度降低,与此同时电路中信号传播时延也相应地得以降低。

With the development of integrated circuit technology,the challenge brought by power dissipation has becomemore prominent,and many power-efficient methods have been proposed.Since the situation exists,an adiabatic stepwise charg-ing technique is put forward in this paper,which can effectively reduce power dissipation in CMOS circuit to achieve the goal ofenergy conservation and can also reduce time delay of signal propagation in circuit.This adiabatic stepwise charging driver iscomposed of some capacitors,DC power supply and related MOSFET.The stepwise voltage hardly consumes energy in this cir-cuit.In order to highlight the advantages of the technology,this method is compared with the traditional one.The simulation re-sults show this technology can reduce energy dissipation more than the traditional methods,and decrease the time delay of sig-nal propagation in circuit.