This document presents a digital energy sensing method for minimizing energy consumption in energy-starved systems with relaxed performance requirements. The method requires neither a constant voltage reference nor a time reference. An energy minimizing loop uses this sensing method to find the minimum energy point and sets the supply voltage between 0.2 and 0.5 volts, achieving energy savings of up to 1275% over existing minimum energy tracking techniques.

1. ALL DIGITAL ENERGY SENSING FOR MINIMUM ENERGY TRACKING
ABSTRACT:
Minimizing energy consumption is of utmost importance in An energy starved
system with relaxed performance requirements. This Brief presents a digital energy sensing
method that requires neither a Constant voltage reference nor a time reference. An energy
minimizing Loop uses this to find the minimum energy point and sets the supply Voltage
between 0.2 and 0.5 v. Energy savings up to 1275% over existing Minimum energy tracking
techniques in the literature is achieved.
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