Energy-Recovery CMOS DesignEnergy-Recovery CMOS Design Jay Moon, Bill Athas* Univ of Southern California *Apple Computer, Inc. jsmoon@usc.edu / athas@apple.com March 05, 2001 UCLA EE215B jsmoon@usc.edu / athas@apple.com 1 Outline Motivation Review of CMOS switching energetics Adiabatic charging Energy-Recovery CMOS Stepwise charging Clock-powered logic (CPL) Harmonic resonant charging Future Research UCLA EE215B jsmoon@usc.edu / athas@apple.com 2 1 Motivation high-performance & low-power computing It’s becoming increasingly difficult to get rid of the heat generated by VLSI chips Battery life for portables UCLA EE215B jsmoon@usc.edu / athas@apple.com 3 Types of power dissipation Dynamic power dissipation ……