Circuit device

A circuit device comprising:

• a first conductive plate having a belt-shaped portion;
• a second conductive plate having a belt-shaped portion that is arranged side-by-side with one side portion of the first conductive plate and is spaced apart from the one side portion;
• a third conductive plate having a belt-shaped portion that is arranged side-by-side with another side portion of the first conductive plate and is spaced apart from the other side portion;
• a first circuit component that has a first terminal connected to the first conductive plate and a second terminal connected to the second conductive plate;
• a second circuit component that has a first terminal connected to the first conductive plate and a second terminal connected to the third conductive plate;
• a first external connection portion provided at the belt-shaped portion of the first conductive plate;
• and
• a second external connection portion provided at the belt-shaped portion of the second conductive plate, or a third external connection portion provided at the belt-shaped portion of the third conductive plate,
• wherein the first circuit component and the second circuit component each include a third terminal for controlling an electric current,
• the circuit device comprises:
• a circuit board that is disposed on one side of the first conductive plate, the second conductive plate, and the third conductive plate, and to which the third terminals of the first circuit component and the second circuit component are connected;
• and
• a radiator that is disposed on the other side of the first conductive plate, the second conductive plate, and the third conductive plate, and
• the circuit board has through-holes through which the first circuit component and the second circuit component respectively pass, a control circuit for controlling operations of the first circuit component and the second circuit component is disposed on the circuit board, and the control circuit is connected to the third terminals of the first circuit component and the second circuit component via a conductive wiring pattern.