A voltage scaling technique for energy-efficient operation requires an adaptive power-supply regulator to significantly reduce dynamic power consumption in synchronous digital circuits. A digitally controlled power converter that dynamically tracks circuit performance with a ring oscillator and regulates the supply voltage to the minimum required to operate at a desired frequency is presented. This paper investigates the issues involved in designing a fully digital power converter and describes a design fabricated in a MOSIS 0.8-/spl mu/m process. A variable-frequency digital controller design takes advantage of the power savings available through adaptive supply-voltage scaling and demonstrates converter efficiency greater than 90% over a dynamic range of regulated voltage levels.
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机译：用于节能操作的电压缩放技术需要自适应电源调节器，以显着降低同步数字电路中的动态功耗。提出了一种数字控制功率转换器，该功率转换器利用环形振荡器动态跟踪电路性能，并将电源电压调节到以所需频率工作所需的最小值。本文研究了设计全数字电源转换器时涉及的问题，并描述了以MOSIS 0.8- / spl mu / m工艺制造的设计。可变频率数字控制器设计充分利用了通过自适应电源电压缩放节省的功率，并在调节电压水平的动态范围内证明了转换器效率超过90％。
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