A dynamic voltage scaling controller for maximum energy saving across full range of load conditions

被引：0
|
作者：
Wei, Guowen [1 ]
Trescases, Olivier [1 ]
Ng, Wai Tung [1 ]
机构：
[1] Univ Toronto, Lab Low Power Management & Integrated SMPS, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
来源：
2005 IEEE CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS, PROCEEDINGS | 2005年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
For devices operating mainly in the standby or low power mode, energy saving from dynamic voltage scaling (DVS) is limited due to very poor efficiency of the PWM DC/DC converter operating at light load conditions, resulting in shorter than expected battery life. This paper first presents the design of a DVS controller - realized on a Xilinx CoolRunner 2 CPLD - having a 25 lis worst case transient response and 15 mV average V-dd step size across an 1.30-1.90 V range. Next a scheme is proposed in which the DVS controller automatically selects between the PFM and PWM mode DC/DC conversion to realize maximum power saving across full range of load conditions.
引用
收藏
页码：371 / 374
页数：4
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