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

页码：371 / 374

页数：4

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