| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the size and weight of the entire power supply device by reducing the volume and weight of a lead storage battery. <P>SOLUTION: The power supply device comprises a main power supply part 10 that supplies power to an auxiliary unit 31 at normal time, and an auxiliary power supply part 20 that supplies power to the auxiliary unit 31 in an emergency. A battery (lead storage battery) 22 of the auxiliary power supply part 20 has a 7-cell constitution which is one more than a 6-cell constitution of a battery (lead storage battery) 12 of the main power supply part 10. The auxiliary power supply part 20 of the power supply device has a setting of the voltage, which is supplied from the battery 22 of the auxiliary power supply part 20, being higher than that supplied from the battery 12 of the main power supply part 10 while equal to or lower than the upper limit voltage of a continuous rating of he auxiliary unit 31. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
