| 摘要 |
PURPOSE:To prevent troubles due to overcurrent exceeding the rating of a connector under the unbalanced condition of current upon shunt current supply through a multi-pole connector, the burning of a contact when the contact resistance of the contact is remarkably high and the like. CONSTITUTION:A power supply circuit, supplying an electric power, outputted by a DC-DC converter 1, by shunt supply through a multi-pole connector 3, is provided with a voltage comparing circuit 5, monitoring and comparing a voltage detected from the multi-pole connector 2 capable of voltage sence of an outputting terminal, and an abnormal signal processing circuit 6, outputting an abnormality information and stopping the operation of the DC-DC converter, except a contact for supplying current. |
