Battery power supply with automatic load sensing
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United States of America Patent
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Mar 29, 2016
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Mar 5, 2013
filing date -
Dec 10, 2007
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Abstract
A battery power supply with extended shelf-life is composed of a plurality of batteries connected in series with a switching element and voltage booster. The switching element is composed of a transistor in parallel with a passive component that produces a voltage drop when the transistor is off. The voltage booster maintains an output voltage at set value when battery capacity deteriorates. A micro-controller is used to monitor voltage potentials to detect the presence of an external load. When no load is detected, all active components are disabled to conserve energy and avoid self-discharge.
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