Abstract: A leakage transformer includes a secondary coil wound around a leg member of a core, and a primary coil wound around the leg member outside of the secondary coil. Between the primary coil and the secondary coil, (i) spacers of non-magnetic members and (ii) bypass cores that are magnetic members to induce therein a portion of magnetic flux generated in the core are arranged. The bypass cores are arranged with gaps therebetween in a direction of the internally induced magnetic flux. A total value of the gaps between the bypass cores is determined in accordance with a target value of leakage inductance. A maximum value of the gaps between the bypass cores is less than or equal to a value obtained by multiplying a minimum value of gaps between the bypass cores and each of the primary coil and the secondary coil by a positive coefficient less than one.

Abstract: A leakage transformer includes a secondary coil wound around a leg member of a core, and a primary coil wound around the leg member outside of the secondary coil. Between the primary coil and the secondary coil, (i) spacers of non-magnetic members and (ii) bypass cores that are magnetic members to induce therein a portion of magnetic flux generated in the core are arranged. The bypass cores are arranged with gaps therebetween in a direction of the internally induced magnetic flux. A total value of the gaps between the bypass cores is determined in accordance with a target value of leakage inductance. A maximum value of the gaps between the bypass cores is less than or equal to a value obtained by multiplying a minimum value of gaps between the bypass cores and each of the primary coil and the secondary coil by a positive coefficient less than one.

Abstract: Provided is an inverter device that can reduce high-frequency noise. The inverter device includes a transformer for converting the voltage of the AC power output from an inverter circuit and outputting the resulting power. Each of first to third coil sections for converting the voltage of the AC power output from the inverter circuit and outputting the resulting power includes an inner coil respectively wound around first to third core sections and an outer coil. The first to third core sections are each column shaped having an axis in the Y direction, and are arranged in the Z direction. Non-magnetic pressing members are provided between the adjacent coil sections and between the adjacent coil sections. The pressing members press against the adjacent coil sections and the adjacent coil sections respectively.

Abstract: Provided is an inverter device that can reduce high-frequency noise. The inverter device includes a transformer for converting the voltage of the AC power output from an inverter circuit and outputting the resulting power. Each of first to third coil sections for converting the voltage of the AC power output from the inverter circuit and outputting the resulting power includes an inner coil respectively wound around first to third core sections and an outer coil. The first to third core sections are each column shaped having an axis in the Y direction, and are arranged in the Z direction. Non-magnetic pressing members are provided between the adjacent coil sections and between the adjacent coil sections. The pressing members press against the adjacent coil sections and the adjacent coil sections respectively.

Abstract: There is provided a vehicle controller that is mounted in a box-shaped manner beneath the floor or on the roof of a vehicle so as to supply electric power to vehicle apparatuses. The vehicle controller is configured with a plurality of functional modules 4; each of the functional modules 4 has at one side thereof an interface side 22 in which a first interface region 5 where signal-line terminals are arranged and a second interface region 6 where power-line terminals are arranged are separated; in each of the interface sides 22, the first interface region 5 is disposed in the vicinity of one and the same end and the second interface region 6 is disposed in the vicinity of the other and the same end; the plurality of functional modules includes a monitoring circuit, an overvoltage protection circuit, and an inverter.

Abstract: A vehicle controller is mounted in a box-shaped manner beneath the floor or on the roof of a vehicle so as to supply electric power to vehicle apparatuses. The vehicle controller is configured with a plurality of functional modules; each of the functional modules has at one side thereof an interface side in which a first interface region where signal-line terminals are arranged and a second interface region where power-line terminals are arranged are separated; in each of the interface sides, the first interface region is disposed at one and the same end and the second interface region is disposed at the other and the same end.

Abstract: There is provided a vehicle controller that is mounted in a box-shaped manner beneath the floor or on the roof of a vehicle so as to supply electric power to vehicle apparatuses. The vehicle controller is configured with a plurality of functional modules 4; each of the functional modules 4 has at one side thereof an interface side 22 in which a first interface region 5 where signal-line terminals are arranged and a second interface region 6 where power-line terminals are arranged are separated; in each of the interface sides 22, the first interface region 5 is disposed in the vicinity of one and the same end and the second interface region 6 is disposed in the vicinity of the other and the same end; the plurality of functional modules includes a monitoring circuit, an overvoltage protection circuit, and an inverter.

Abstract: There is provided a vehicle controller that is mounted in a box-shaped manner beneath the floor or on the roof of a vehicle so as to supply electric power to vehicle apparatuses. The vehicle controller is configured with a plurality of functional modules 4; each of the functional modules 4 has at one side thereof an interface side 22 in which a first interface region 5 where signal-line terminals are arranged and a second interface region where power-line terminals are arranged are separated; in each of the interface sides 22, the first interface region 5 is disposed at one and the same end and the second interface region 6 is disposed at the other and the same end.