One or more embodiments provide a switch diagnosis device including: a switch in a current path at a high voltage side; a voltage-sensing circuit configured to generate a voltage signal by sensing a voltage across the switch at the high voltage side; a cur...

The present invention provides a switch detection circuit, method, and switch detector, the switch detection circuit including a controller, a first DC isolation module, a second DC isolation module, and a signal conditioning module. An output end of the c...

Provided is a battery system which can ensure high safety even when the battery system is constructed using a mechanical relay. The battery system includes: a battery module 30 where a plurality of battery cells 20 are connected to each other in series; a ...

A system for testing over-current fault detection includes a first switch 14 to connect a voltage to a load, a capacitor 20 connected between the first switch and ground, a monitor circuit 38 that monitors a current from the first switch to the load, and a...