Power source switch control device

[0024]The following describes a power source switch control device 1 according to the embodiment. For example, a vehicle such as an electric vehicle or a hybrid electric vehicle is sometimes provided with a high-voltage system 100 having a function to drive a high-voltage load unit 3 by supplying power source electricity from a high-voltage battery 2 to the high-voltage load unit 3 and a function to charge the high-voltage battery 2 by supplying regenerative electricity from the high-voltage load unit 3 to the high-voltage battery 2. The high-voltage system 100 includes the high-voltage battery 2 as a direct-current power source, the high-voltage load unit 3 as a load unit, and the power source switch control device 1. The high-voltage system 100 functions as a power circuit 101 in which the high-voltage battery 2 and the high-voltage load unit 3 are electrically connected with each other through the power source switch control device 1.

[0025]The high-voltage battery 2 is a high-voltag