2026-09-20T01:03:08Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/42360 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Shanbhag, Naresh R. Zhang, Sai 2013-02-03T19:36:22Z 2013-02-03T19:36:22Z 2012-12 2013-02-03T19:36:22Z 2012-12 Switched capacitor voltage regulator module (SC-VRM) is suitable for low power embedded systems operating in near/sub-threshold region due to its high conversion ratio and compactness. However, existing optimization for SC-VRM is separated from the embedded core design and therefore leads to sub-optimal system energy efficiency. In this thesis, we propose to jointly optimize the switched capacitor voltage regulator module (SC-VRM) and the compute core to minimize system energy per instruction. A core-aware SC-VRM energy model is developed and employed to solve the joint optimization problem. We also propose and optimize a reconfigurable SC-VRM architecture. Simulation results in a 130nm CMOS process indicate that the core-aware SC-VRM model predicts energy from circuit simulations to within 5%, and that the proposed approach results in a maximum system energy savings of 8% to 38.9%. The reconfigurable SC-VRM achieves 15% to 52% energy saving as compared to an efficiency-optimized design. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-12-11T13:55:15Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Zhang_Sai.pdf: 3507355 bytes, checksum: ad2ee5095648a2b4928979867f25f117 (MD5) Made available in DSpace on 2013-02-03T19:36:22Z (GMT). No. of bitstreams: 2 Sai_Zhang.pdf: 3507355 bytes, checksum: ad2ee5095648a2b4928979867f25f117 (MD5) license.txt: 4059 bytes, checksum: f7fa64eb40d515b3c60adb08482adbec (MD5) http://hdl.handle.net/2142/42360 en Copyright 2012 Sai Zhang Switched capacitor voltage regulator module Sub/near-threshold operation Optimization Low power design System-level optimization of the DC-DC voltage regulator and core for sub/near-threshold voltage operation text Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Thesis M.S. PHD:Electr & Computer Eng-UIUC 10KS1200PHD