Patent ID: 11938986
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 3:
4. The control device according to claim 3, wherein
the conduction ratio of the switching element of the step-down circuit increases from a minimum conduction ratio to a maximum conduction ratio in accordance with an increase in the voltage at the primary side, and
provided that the voltage at the primary side is constant, the conduction ratio in accordance with the voltage at the primary side in a case where the separation determiner determines that the current collector is not separate from the power line is lower than the conduction ratio in accordance with the voltage at the primary side in the case where the separation determiner determines that the current collector is separate from the power line, both of the conduction ratios being higher than the minimum conduction ratio and lower than the maximum conduction ratio.