| 摘要 |
PROBLEM TO BE SOLVED: To configure a logic circuit between a control circuit and a voltage converter to make it possible to perform single conversion of a first or second voltage converter even at the time of shutdown control from a monitoring device.SOLUTION: A logic circuit 10 comprises first voltage conversion circuit logic circuits U15, U16 that receive, as input, a first upper arm signal and first lower arm signal transmitted from a controller as signals for a first voltage conversion circuit CNV1 and a shutdown signal for the first voltage conversion circuit CNV1 and permit or prohibit, by using the shutdown signal, output of the first upper arm signal and first lower arm signal. The logic circuit 10 also comprises second voltage conversion circuit logic circuits U13, U14 that receive, as input, a second upper arm signal and second lower arm signal transmitted from the controller as signals for a second voltage conversion circuit CNV2 and a shutdown signal for the second voltage conversion circuit CNV2 and permit or prohibit, by using the shutdown signal, output of the second upper arm signal and second lower arm signal.SELECTED DRAWING: Figure 2 |
