Circuit board, active filter device, and air conditioner
AssigneeMitsubishi Electric Corporation
InventorsKenji Iwazaki, Yosuke Shinomoto, Kazunori Hatakeyama
Life of this patent
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Abstract
A circuit board accommodates a plurality of different source voltages. On the circuit board, a printed wire which constitutes a circuit is formed, a first circuit component used for a board which meets specifications for a first voltage or a second circuit component used for a board which meets specifications for a second voltage higher than the first voltage, is mounted, and spacing between adjacent printed wires is equal to or larger than a distance which secures an insulation distance when the second voltage is input.
Claims16
A circuit board that accommodates a plurality of different source voltages, wherein a plurality of printed wire wires that constitutes constitute a circuit is formed, either of a first circuit component used for a board that meets specifications for a first voltage or a second circuit component used for a board that meets specifications for a second voltage higher than the first voltage and having an external dimension different from an external dimension of the first circuit component, is mounted, a mounting unit for the first circuit component and a mounting unit for the second circuit component are provided to each of the plurality of printed wires, and spacing between the plurality of printed wires adjacent to each other is equal to or larger than a distance that secures an insulation distance when the second voltage is input, being a circuit board for an active filter device that compensates for a harmonic current generated by a device connected to an alternating-current source, and comprising a power conversion unit that generates a current having a phase opposite to the harmonic current, wherein a connector to which a capacitive component that smooths a bus voltage inside the power conversion unit is connected is mounted, and the capacitive component is externally connected.
A circuit board used for a board that meets different voltage specifications, wherein a plurality of printed wire wires that constitutes constitute a circuit is formed, either of a first circuit component used for a board that meets specifications for a first voltage or a second circuit component used for a board that meets specifications for a second voltage higher than the first voltage and having an external dimension different from an external dimension of the first circuit component, is mounted, a mounting unit for the first circuit component and a mounting unit for the second circuit component are provided to each of the plurality of printed wires, and a cross-sectional area of each of the plurality of printed wire wires is equal to or larger than a cross-sectional area that accepts a maximum current that is carried when the first voltage is input, being a circuit board for an active filter device that compensates for a harmonic current generated by a device connected to an alternating-current source, and comprising a power conversion unit that generates a current having a phase opposite to the harmonic current, wherein a connector to which a capacitive component that smooths a bus voltage inside the power conversion unit is connected is mounted, and the capacitive component is externally connected.
Dependencies are inferred from the claim text.