Conversion apparatus, equipment, and control method
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United States of America Patent
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Jun 12, 2018
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app pub date -
Sep 28, 2017
filing date -
Oct 3, 2016
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Abstract
The conversion apparatus includes a conversion module having a plurality of phases, each having a converter capable of performing voltage conversion of discharging electric power of a power source and a sensor detecting phase current flowing in the converter, and in which the phases are electrically connected in parallel, and a controller which controls each converter with a control signal based on a predetermined duty ratio. The controller includes a first determination unit which determines a basic duty ratio common to all of the plurality of phases, a second determination unit which determines a correction duty ratio for correcting the basic duty ratio at each of the converters, and a generation unit which generates a control signal based on the basic duty ratio and the correction duty ratio. The second determination unit determines the correction duty ratio, and sets an upper or lower limit value of the correction duty ratio.
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