An Efficient and Effective Methodology to Control Turn-On Sequence of Power Switches for Power Gating Designs
| Autor: | Chun-Po Huang, Jai-Ming Lin, Ya-Ting Shyu, Che-Chun Lin, Soon-Jyh Chang |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
Power gating business.industry 020208 electrical & electronic engineering 02 engineering and technology Computer Graphics and Computer-Aided Design Hybrid routing 020202 computer hardware & architecture Power (physics) Logic gate Control system 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Routing (electronic design automation) business Daisy chain Integer programming Software |
| Zdroj: | IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 35:1730-1743 |
| ISSN: | 1937-4151 0278-0070 |
| DOI: | 10.1109/tcad.2016.2523916 |
| Popis: | As technology advances, power consumption becomes a big challenge in modern very large-scale integration designs. To resolve this problem, power-gated technology has been widely adopted in circuit designs. Since the turn-on sequence of power switches has a great impact on the rush current, wake-up, and sequence times of a power gating design, this paper proposes a methodology to construct a hybrid routing structure to connect power switches. Our hybrid routing structure can induce less rush current and satisfy timing constraints because a better daisy chain is constructed. To find members of the daisy chain, an integer linear programming algorithm is used to pick up suitable power switches. To determine suitable depth of a daisy chain, we propose a model for a power gating design and induct precise equations to estimate voltage and rush current equations according to the model. All of our experiments are based on industrial designs and measured by vendor tools. The experimental results demonstrate the efficiency and effectiveness of our design methodology. |
| Databáze: | OpenAIRE |
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