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2007
IEEE

Power deregulation: eliminating off-chip voltage regulation circuitry from embedded systems

11 years 6 months ago
Power deregulation: eliminating off-chip voltage regulation circuitry from embedded systems
In battery-powered embedded systems, dedicated circuitry is used to convert stored energy into a form that can be directly used by processors. These power regulation devices seek to mask non-ideal aspects of the battery and present an ideal, fixed-voltage power source to the processor. However, this comes at a high price in terms of form factor, component cost, and energy efficiency. We describe and evaluate a new method for eliminating voltage regulation circuitry from battery-powered embedded systems. This method makes use of power gating, frequency scaling, and thread migration in chip-level multiprocessors to dynamically adjust to varying battery voltage. The key advantages of this approach are reduction in printed circuit board area (by 1/3 in many embedded applications) and the elimination of bulky unreliable discrete components such as electrolytic capacitors while maintaining similar battery lifespan. We have evaluated the power consumption, performance, and reliability impl...
Seunghoon Kim, Robert P. Dick, Russ Joseph
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where CODES
Authors Seunghoon Kim, Robert P. Dick, Russ Joseph
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