Inter-vehicle transfer apparatus

An inter-vehicle transfer apparatus mounted in a vehicle to transfer a signal to another vehicle to which the vehicle is electrically coupled via an electrical coupler, the inter-vehicle transfer apparatus comprising:

• a pulse transformer including
• a first coil wound around a core and connected at one end to the electrical coupler,
• a capacitor connected at one end to the other end of the first coil, and
• a second coil
• wound around the core in a same direction as the first coil,
• connected at one end to the other end of the capacitor, and
• connected at the other end to the electrical coupler;
• a first auxiliary coil
• wound around the core in an opposite direction to the first and second coils and having an equal number of turns as the first coil, and
• connected at one end to the other end of the first coil;
• and
• a second auxiliary coil
• wound around the core in an opposite direction to the first and second coils and having an equal number of turns as the second coil, and
• connected at one end to the one end of the second coil, wherein
• the other end of the first auxiliary coil and the other end of the second auxiliary coil are connected to each other to enable application of a direct-current voltage across contact portions in the electrical coupler.