CHARGING SYSTEM OF SECONDARY BATTERY CONNECTED IN SERIES

摘要

PROBLEM TO BE SOLVED: To provide a charging system of secondary batteries connected in series, which can be easily manufactured and suppress power consumption.

SOLUTION: A charging system of secondary batteries connected in series includes: a power generating unit 2 for generating DC input Vdc on the basis of voltage input from an AC power supply 8; a charging control unit 3 for generating charging voltage Vcc on the basis of the DC input Vdc from at least the power generating unit 2; an interface unit 4 for supplying the charging voltage Vcc from the charging control unit 3 to secondary batteries 90; and a plurality of detection units 5 for detecting one corresponding voltage of the secondary batteries 90 through the interface unit 4. When detecting that one corresponding voltage of the secondary batteries 90 is within a voltage range set in advance, the detection units 5 generate feedback power Vb on the basis of the one corresponding voltage of the secondary batteries 90, and output the feedback power Vb to the charging control unit 3.

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