チョッパとインバータを用いた電気二重層コンデンサの電圧バランス回路<論文>

概要

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Electric double layer capacitors(EDLCs) are used in series connection and the voltage balance among EDLCs is important. The voltage balance circuit with inverter has the merits of simple and low cost. However the voltage drop at diodes and transistors impedes the voltage balance operation. We have developed a new voltage balance circuit using chopper and inverter. The chopper steps up the input voltage of inverter to compensate the voltage drop. This paper describes the new voltage balance circuit and the experimental results in detail.