Circuit assembly

A circuit assembly comprising:

• a first conductive portion that is plate-shaped and elongated in one direction;
• a second conductive portion that is plate-shaped, elongated along a lengthwise direction of the first conductive portion, and is arranged to be separated from the first conductive portion by a predetermined distance;
• and
• a plurality of switching elements that are arranged straddling the first conductive portion and the second conductive portion, and are lined up in the lengthwise direction, wherein
• a width of the first conductive portion or the second conductive portion at one end portion in the lengthwise direction is different from a width at the other end portion in the lengthwise direction.

A circuit assembly comprising:

• a first conductive portion and a second conductive portion having an identical shape and having a first portion that is elongated in one direction and a second portion that is continuous with, and intersects with, one end portion of the first portion;
• and
• a plurality of switching elements, wherein
• the first portions of the first conductive portion and the second conductive portion are arranged side-by-side and are separated by a predetermined distance, and
• the plurality of switching elements are lined up at equally spaced intervals in a lengthwise direction straddling the first portions of the first conductive portion and the second conductive portion.