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能量回收电路的非绝热损失正比于 CLΔ V2 ,文中提出了两种方法降低 CL 和 ΔV因子 .HEERL(high efficientenergy recovery logic)电路利用自举效应减小了回收节点的残留电压 ΔV,IERL(improved energy recovery logic)电路增加了回收的通路 ,在控制回收通路的小电容节点产生了 CAΔV2的非绝热损失 ,从而使大电容输出节点电荷被充分回收 ,降低了电路的整体功耗 .降低非绝热损失两个因子 CL 和 ΔV的能量回收电路与其它能量回收电路相比 ,电路面积增加很小 (2个 NMOS管 ) ,而功耗可降低 5 0 %以上 .
The non-adiabatic loss of the energy recovery circuit is proportional to CLΔV2, and two methods are proposed to reduce the CL and ΔV factors. The HEERL (high efficiente recovery logic) circuit reduces the residual voltage ΔV, IERL (improved energy recovery logic circuit increases the recovery path and produces a non-adiabatic loss of CAΔV2 at the small capacitance node controlling the recovery path, so that the charge of the large capacitance output node is fully recovered, reducing the overall power consumption of the circuit. Energy recovery circuits with a factor of CL and ΔV have a small increase in area (2 NMOS transistors) compared to other energy recovery circuits, while reducing power consumption by more than 50%.