Motor drive device

A motor drive device for driving a motor having a first winding set and a second winding set, the motor drive device comprising:

• a first drive system that includes a first power supply circuit and a first central processing unit, and controls a current flow to the first winding set;
• and
• a second drive system that includes a second power supply circuit and a second central processing unit, and controls a current flow to the second winding set,
• wherein the first drive system is constituted by arranging the first power supply circuit and the first central processing unit on a substrate in this order in a first direction,
• wherein the second drive system is constituted by arranging the second power supply circuit and the second central processing unit on the substrate in this order in a second direction,
• wherein the first direction and the second direction are set opposite to each other, and the arrangement of the first power supply circuit and the first central processing unit and the arrangement of the second power supply circuit and the second central processing unit are placed side by side on the substrate, and
• wherein, calling a straight line that passes between the first power supply circuit and the first central processing unit in a plan view of the substrate, perpendicular to the first direction, a first virtual line, and calling a straight line that passes between the second power supply circuit and the second central processing unit in the plan view of the substrate, perpendicular to the second direction, a second virtual line, the first central processing unit and the second central processing unit are disposed within an area sandwiched by the first virtual line and the second virtual line.