Enabling Wide Autonomous DVFS in a 22 nm Graphics Execution Core Using a Digitally Controlled Fully Integrated Voltage Regulator
The work
| Authors | Stephen T. Kim; Yi-Chun Shih; Kaushik Mazumdar; Rinkle Jain; Joseph F. Ryan; Carlos Tokunaga; Charles Augustine; Jaydeep P. Kulkarni; Krishnan Ravichandran; James W. Tschanz; Muhammad M. Khellah; Vivek K. De |
|---|---|
| Editors | |
| Type | article |
| Year | 2016 |
| Also known as | kim2015enabling |
| Citekey | kim2016enabling |
Where it appeared
| Published in | IEEE Journal of Solid-State Circuits |
|---|---|
| Publisher | Institute of Electrical and Electronics Engineers |
| Volume | 51 |
| Issue | 1 |
| Pages | 18--30 |
Identifiers
| DOI | 10.1109/jssc.2015.2457920 |
|---|---|
| OpenAlex | W2217616241 |
Access
| Landing page | https://doi.org/10.1109/jssc.2015.2457920 |
|---|
From OpenAlex, which stores abstracts as an index of words and their positions: what is shown is rebuilt from that, and reads fluently whether or not it is what the author wrote.
Abstract
A digitally-controlled fully integrated voltage regulator (IVR) enables wide autonomous DVFS in a 22 nm graphics execution core. Part of the original power header is converted into a hybrid power stage to support digital low-dropout (DLDO), and switched-capacitor voltage regulator (SCVR) modes, in addition to the original bypass and sleep modes. Using voltage sensing, tunable replica circuit, or a core warning signal, the IVR detects and quickly responds to fast voltage droops to support fast dynamic workload changes without performance degradation. In a prototype, a 3D graphics execution core is powered up by the proposed hybrid IVR demonstrating measured 26% and 82% reduction in core energy in the turbo and the near-threshold voltage (NTV) modes, respectively. The total area overhead of the proposed hybrid IVR is 4% of the core compared to 2% from the original power header. Our digitally assisted control for the droop response shows ~ 75% core frequency improvement at 0.84 V.
How it got here
| How it got here | agent via openalex |
|---|---|
| Added | 2026-10-27 18:45 UTC |
| Not denied by | a person 2026-10-29 17:12 UTC |
Cite it as
@article{kim2016enabling,
title = {Enabling Wide Autonomous DVFS in a 22 nm Graphics Execution Core Using a Digitally Controlled Fully Integrated Voltage Regulator},
author = {Stephen T. Kim and Yi-Chun Shih and Kaushik Mazumdar and Rinkle Jain and Joseph F. Ryan and Carlos Tokunaga and Charles Augustine and Jaydeep P. Kulkarni and Krishnan Ravichandran and James W. Tschanz and Muhammad M. Khellah and Vivek K. De},
year = {2016},
journal = {IEEE Journal of Solid-State Circuits},
publisher = {Institute of Electrical and Electronics Engineers},
volume = {51},
number = {1},
pages = {18--30},
doi = {10.1109/jssc.2015.2457920},
}
This record lives at https://refs.drheap.org/kim2016enabling/ and will keep
doing so. It used to be called kim2015enabling, and those addresses still resolve to this one.