| 摘要 |
PURPOSE:To provide the charging system of an optimum auxiliary battery to an auxiliary equipment requiring approximately constant supply voltage such as an illuminating lamp. CONSTITUTION:An auxiliary battery for an auxiliary equipment is composed of first and second auxiliary batteries 61, 62 while a charging equipment 70 is constituted of first and second charging circuits 710, 720. The first charging circuit 710 has an inverter 722, a step-down isolating transformer 732, a rectifier 742 and a filter 752, and the second charging circuit 720 has a DC-DC converter 78, to which the output voltage of the first charging circuit 710 is applied, a second filter 753, a control circuit 771 controlling the DC-DC converter 78 so that the voltage of the second auxiliary battery 78 is kept approximately constant, etc. |
