Current detection apparatus

A current detection apparatus for detecting currents flowing through a first phase current line, a second phase current line, and a third phase current line of a three-phase motor, the current detection apparatus comprising:

• an α-axis magnetic detection element provided around the first, second, and third phase current lines;
• and
• a β-axis magnetic detection element provided around the first and third phase current lines, wherein
• a detection axis of the β-axis magnetic detection element is arranged orthogonal to a first virtual line connecting the first and third phase current lines, on a β-axis element arrangement surface that is orthogonal to both of the first and third phase current lines and includes a detection center of the β-axis magnetic detection element;
• the detection center of the β-axis magnetic detection element is arranged on a second virtual line that is orthogonal to the first virtual line and passes through a midpoint of the first virtual line;
• and
• a distance between the detection center of the β-axis magnetic detection element and the first phase current line along the second virtual line is within a predetermined allowable setting error range with a distance between the detection center of the β-axis magnetic detection element and the first phase current line along the first virtual line as a center.