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Regulator-Gating Based On-Chip Power Management
Description:

Researchers at the University of South Florida have de-veloped a regulator-gating technique that improves the on-chip voltage conversion efficiency.

Design-for-power has become one of the primary objectives with the continuous demand to improve the battery life of mo-bile devices or minimize the cooling costs of servers. To save power and mitigate thermal emergencies, circuits typically enter reduced power states when the workload is light. Voltage regu-lators, however, operate indifferently under varying workload conditions due to the lack of different operating modes. When a voltage regulator is optimized for a particular load current, sig-nificant power is dissipated during voltage conversion while de-livering a different load current. Adaptive activity management of on-chip voltage regulators based upon the workload infor-mation can be exploited to force each on -chip regulator to oper-ate in its most power-efficient load current.

USF inventors have developed a regulator-gating technique, whereby regulators are adaptively turned on/off when the cur-rent demand is high/low to improve the voltage conversion effi-ciency. With this technique, the overall voltage conversion effi-ciency from the battery or off -chip power supply to the output of on-chip voltage regulators is improved by 5% to 20% as well as providing fast turn on capability.

Research Terms: Engineering > Electrical Engineering
Engineering > Electronics
Keywords: Engineering & Software, Electronics;
Technology Information URL: http://www.research.usf.edu//dpl/content/data/PDF/14A026.pdf
University: University of South Florida
Tech Transfer URL: http://www.research.usf.edu/pl/

Associated Patents

Patent Name: System and method for voltage regulator-gating
Patent Number: US Patent 8,922,272
Patent Status: Issued
Issue Date: December 30, 2014
Patent Record: View full record at google patents
View full record at United States Patent and Trademark Office
Patent Inventors:
Patent Name: System and method for distributed voltage regulator-gating
Patent Number: US Patent 9,372,490
Patent Status: Issued
Issue Date: June 21, 2016
Patent Record: View full record at google patents
View full record at United States Patent and Trademark Office
Patent Inventors:

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