| 摘要 |
When boosting a battery, a direct current boosting voltage is applied between the positive and negative terminals of the battery via a pair of cables of predetermined length. In order to supply a boosting voltage of predetermined constant value, a direct current voltage source supplies the boosting voltage to the battery not only through the pair of the cables, but also through a high current adjustable load. Of course, the direct current voltage source supplies a voltage of value higher than the boosting voltage predetermined value. A voltage controller detects the voltage between the ends of the two cables adjacent to the voltage source, and the voltage drop in the pair of cables, and varies the high current adjustable load in response to the detected voltage and voltage drop so as to adjust the boosting voltage at the predetermined constant value.
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