An electrical system comprising: a DC link substrate (114, 202, 402) comprising one or more capacitors (206, 406) on a first side and a first plurality of connection interfaces on a second side opposite the first side, wherein: a first subset of the first plurality of connection interfaces is electrically connected to a first reference voltage node; a second subset of the first plurality of connection interfaces is electrically connected to a second reference voltage node different from the first reference voltage node; and the first subset and the second subset are interleaved; and a power converter substrate (116, 204, 300, 404) comprising a second plurality of connection interfaces, wherein: a third subset of the second plurality of connection interfaces is electrically connected to a first terminal of a first switching element and coupled to the first subset of the first plurality of connection interfaces; a fourth subset of the second plurality of connection interfaces is electrically connected to a second terminal of a second switching element and coupled to the second subset of the first plurality of connection interfaces; and the third subset and the fourth subset are interleaved. a DC link substrate (114, 202, 402) comprising one or more capacitors (206, 406) on a first side and a first plurality of connection interfaces on a second side opposite the first side, wherein: a first subset of the first plurality of connection interfaces is electrically connected to a first reference voltage node; a second subset of the first plurality of connection interfaces is electrically connected to a second reference voltage node different from the first reference voltage node; and the first subset and the second subset are interleaved; and a first subset of the first plurality of connection interfaces is electrically connected to a first reference voltage node; a second subset of the first plurality of connection interfaces is electrically connected to a second reference voltage node different from the first reference voltage node; and the first subset and the second subset are interleaved; and a power converter substrate (116, 204, 300, 404) comprising a second plurality of connection interfaces, wherein: a third subset of the second plurality of connection interfaces is electrically connected to a first terminal of a first switching element and coupled to the first subset of the first plurality of connection interfaces; a fourth subset of the second plurality of connection interfaces is electrically connected to a second terminal of a second switching element and coupled to the second subset of the first plurality of connection interfaces; and the third subset and the fourth subset are interleaved. a third subset of the second plurality of connection interfaces is electrically connected to a first terminal of a first switching element and coupled to the first subset of the first plurality of connection interfaces; a fourth subset of the second plurality of connection interfaces is electrically connected to a second terminal of a second switching element and coupled to the second subset of the first plurality of connection interfaces; and the third subset and the fourth subset are interleaved.