Apparatus and method for minimum energy tracking loop
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United States of America Patent
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Nov 21, 2023
Grant Date -
Jul 14, 2022
app pub date -
Jan 13, 2022
filing date -
Jan 13, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed are an apparatuses and methods for minimum energy tracking loop that includes an oscillator to imitate a threshold path of a load system and automatically adjust a clock frequency as a supply voltage to the load system is changed, a voltage regulator configured to supply a power, an energy sensing unit which is connected to the oscillator and the voltage regulator and calculates a proportional energy proportional to a total energy consumed by the load system at a specific supply voltage, a minimum energy finder to find a minimum energy point of the load system by monitoring the calculated proportional energy proportional to the total energy at a plurality of supply voltages, a buck converter to supply a power to the load system with a supply voltage at which the load system operates with a minimum energy when the minimum energy point is found in the minimum energy finder.
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