| 摘要 |
PROBLEM TO BE SOLVED: To provide a relay fastening discrimination circuit capable of suitably determining whether or not a positive electrode side relay and a negative electrode side relay are fastened in a simple structure.SOLUTION: A relay fastening discrimination circuit comprises: a first circuit CT1 that constructs a first detected circuit DCT1 departing from a positive electrode 10P of a power storage device 10, passing through a positive electrode side relay SMR-B, and returning to a negative electrode 10N of the power storage device 10, and in which the magnitude of a first voltage V1 to be outputted is different depending on cases of flowing a current to the first detected circuit DCT1 because the positive electrode side relay SMR-B is fixed in a closing sate and of not flowing the current to the first detected circuit DCT1 because it becomes an opening state; and a second circuit CT2 that constructs a second detected circuit DCT2 departing from the positive electrode 10P of power storage device 10, passing through a negative electrode side relay SMR-G, and returning to the negative electrode 10N of the power storage device 10, and in which the magnitude of a second voltage V2 to be outputted is different depending on the cases of flowing the current to the second detected circuit DCT2 because the negative electrode side relay SMR-G is fixed in the closing sate and of not flowing the current to the second detected circuit DCT2 because it becomes the opening state.SELECTED DRAWING: Figure 1 |
