Patent ID: 10656186

Abstract:
A heat-resistant device for current detection may include a heat-resistant substrate including a ceramic material; a group of power wirings embedded in the heat-resistant substrate; and a coil structure. The coil structure may include a coil wiring in which coil units each including or corresponding to one turn of the coil wiring are arranged in a circumferential direction around the group of power wirings. The coil unit may include: a first conductor; a second conductor; a first connection wiring; and a second connection wiring which may be embedded in the heat-resistant substrate. At least the first conductor and the second conductor may not be exposed outside of the heat-resistant substrate. The respective first conductors may be spaced by the substantially same minimum distance from an outer circumferential line surrounding the group of power wirings in a plane orthogonal to the extending direction of the group of power wirings.