| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a failure of a connection relay, etc., due to inrush current to ensure reliability. <P>SOLUTION: In a power supply control device, when an ignition switch becomes on at a time 0, initial diagnosis and current value setting for achieving 100% output from a DC/DC converter 6 are executed. At a time ta, the soft start of the DC/DC converter 6 is initiated to cause output current from the DC/DC converter 6 to rise gradually. At a time tb at which the output current from the DC/DC converter 6 reaches 50%, the operation of the DC/DC converter 6 is checked to suspend its soft start temporarily. When the check on the operation of the DC/DC converter 6 finds the operation to be normal, the soft start is resumed at a time tc. At a time td at which the output current from the DC/DC converter 6 reaches 100%, normal current control on the DC/DC converter 6 is started. This invention applies to, for example, an electric vehicle. <P>COPYRIGHT: (C)2010,JPO&INPIT |
