UVFR: A Unified Voltage and Frequency Regulator with 500MHz/0.84V to 100KHz/0.27V operating range, 99.4% current efficiency and 27% supply guardband reduction

S. Gangopadhyay, Saad Bin Nasir, A. Subramanian, V. Sathe, A. Raychowdhury
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引用次数: 14

Abstract

A fully-digital, single-loop Unified Voltage and Frequency Regulator (UVFR) is designed in 130nm CMOS to provide the correct supply to digital loads to meet a timing criteria. Simultaneously a Tunable Replica Circuit (TRC) based local oscillator is generated from the regulated supply and clocks the load. Measurements show 0.84V to 0.27V range of operation, and 27% supply guardband reduction at iso-performance through adaptation and resiliency which are intrinsic to the control loop.
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UVFR:一个统一的电压和频率调节器,工作范围为500MHz/0.84V至100KHz/0.27V,电流效率99.4%,电源保护带减少27%
采用130nm CMOS设计的全数字单环统一电压和频率调节器(UVFR)可为数字负载提供正确的电源,以满足时序标准。同时,一个基于可调谐复制电路(TRC)的本地振荡器由稳压电源产生并对负载进行时钟。测量显示0.84V至0.27V的工作范围,并且通过控制回路固有的适应性和弹性,在等性能下减少27%的电源保护带。
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