@article {wei1999fully,
	title = {A fully digital, energy-efficient, adaptive power-supply regulator},
	journal = {IEEE Journal of solid-state Circuits},
	volume = {34},
	year = {1999},
	pages = {520{\textendash}528},
	publisher = {IEEE},
	abstract = {<p>
	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.
</p>
},
	url = {https://doi.org/10.1109/4.753685},
	author = {Gu  Wei and Horowitz Mark}
}
