Charging efficiency using variable isolation

A method for charging an energy storage system (ESS) from an AC line voltage having differing input voltages (e.g., 120 Vac or 240 Vac), the method includes a) determining which of the AC line voltages is provided for charging the ESS as a charging AC voltage; b) boosting the charging AC voltage to...

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creator KRAUER JEAN-PIERRE
description A method for charging an energy storage system (ESS) from an AC line voltage having differing input voltages (e.g., 120 Vac or 240 Vac), the method includes a) determining which of the AC line voltages is provided for charging the ESS as a charging AC voltage; b) boosting the charging AC voltage to an intermediate voltage responsive to the provided AC line voltage; c) scaling, responsive to the particular one of the AC line voltages, the intermediate voltage to a secondary voltage using a scaling factor; and d) converting the secondary voltage to a charging voltage applied to the ESS.
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subjects CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
title Charging efficiency using variable isolation
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