| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply which includes a failsafe function against failure. <P>SOLUTION: The power supply includes: a lithium storage battery 30 (second storage battery) connected parallel to a lead storage battery; an MOS-FET 50 and 60(semiconductor switch) which are electrically connected between the lithium storage battery 30 and a power generator 10 and a lead storage battery 20, for selecting electrical conduction or shielding between the lithium storage battery 30 and the power generator 10 and the lead storage battery 20; power feeding lines 90-92 which supply power from the power generator 10 or the lead storage battery 20 to a constant voltage requirement electrical load 43 that is electrically connected on the side of lithium storage battery 30 of the MOS-FET 50 and 60; a bypass power feeding line 93 which is electrically connected to the power feeding lines 90-92 and supplies power to the constant voltage requirement electrical load 43 from the power generator 10 by bypassing the MOS-FET 50 and 60; and a bypass relay 94 (bypass opening/closing means) for selecting electrical conduction or shielding to the bypass power feeding line 93. <P>COPYRIGHT: (C)2012,JPO&INPIT |
