VOLTAGE CALIBRATION METHOD OF CHARGE/DISCHARGE POWER SUPPLY AND VOLTAGE CALIBRATION DEVICE THEREFOR

Japanese Patent JP2016082845

A

PROBLEM TO BE SOLVED: To provide a voltage calibration method of a charge/discharge power supply and a device therefor capable of allowing the charge/discharge power supply to avoid control impossibility to easily and efficiently acquire data for calibration.SOLUTION: In a voltage calibration method of a secondary battery 11 in charge, a current detection resistor 15 is connected with a charge/discharge power supply 12 in series with the secondary battery 11, when the charge/discharge power supply 12 starts charge by constant current control and current to be detected by the current detection resistor 15 exceeds a first set value, gradually increasing voltage is applied to voltage terminals 18, 19 for remote sensing, when the charge shifts from the constant current control to a state of constant voltage control, and the current is equal to or less than the first set value and equal to and more than a second set value, voltage is fixed to be applied to the voltage terminals 18, 19 for remote sensing, the state of constant voltage control is terminated, when the current is equal to or more than the second set value, increase of the voltage is restarted to be applied to the voltage terminals 18, 19 for remote sensing, and when the current is less than the second set value, the voltage is returned to an initial voltage value.SELECTED DRAWING: Figure 2

NAKASHITA KAZUTOMO
NOMURA KATSUHIKO

JP2014215445A

May 16, 2016

October 22, 2014

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NIPPON STEEL & SUMIKIN TEXENG CO LTD

H02J7/00; H01M10/48

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Fujio Nakamae
Yohei Kiyoi
Yoshihiro Kurita

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