Isolated converter

An isolated converter comprising:

• a multilayer substrate having a first surface and a second surface positioned on a side opposite to the first surface, the multilayer substrate having a first through hole extending from the first surface to the second surface;
• and
• a magnetic core partially passing through the first through hole,
• the multilayer substrate including
• a first conductor pattern formed at a position overlapping the magnetic core on the second surface when viewed from an orthogonal direction to the first surface,
• a second conductor pattern formed between the first surface and the second surface at a position overlapping the magnetic core and the first conductor pattern when viewed from the orthogonal direction to the first surface,
• at least one thermal conductive member formed on the first conductor pattern and having a portion disposed between the multilayer substrate and the magnetic core, and
• an insulative heat-transferring member electrically insulating the first conductor pattern from the second conductor pattern, wherein
• the multilayer substrate further includes a third conductor pattern formed at a position overlapping the magnetic core on the first surface when viewed from the orthogonal direction to the first surface,
• the second conductor pattern and the third conductor pattern are electrically insulated from each other,
• the first conductor pattern and the third conductor pattern are electrically connected with each other,
• the multilayer substrate further includes a fourth conductor pattern formed between the first surface and the second surface at a position overlapping the magnetic core and at least one of the first conductor pattern and the third conductor pattern when viewed from the orthogonal direction,
• the third conductor pattern, the fourth conductor pattern, the second conductor pattern, and the first conductor pattern are formed in order in the orthogonal direction,
• the second conductor pattern and the fourth conductor pattern are electrically connected with each other, and
• a distance in the orthogonal direction between the third conductor pattern and the fourth conductor pattern and a distance in the orthogonal direction between the first conductor pattern and the second conductor pattern are shorter than a distance in the orthogonal direction between the second conductor pattern and the fourth conductor pattern.