| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a control device that achieves high resistance against external radiation noise while avoiding malfunction of control associated with load variation.SOLUTION: A control device comprises a circuit board (100) on which electrical components constituting a control circuit are mounted. The circuit board has a plurality of ground patterns (170 and 172), and the plurality of ground patterns includes at least one outer-edge ground pattern (172) formed along at least a part of the outer periphery of the circuit board. The ground pattern (170) except for the outer-edge ground pattern is DC-connected to the outer-edge ground pattern (172) and is AC-connected to the outer-edge ground pattern (172) via at least one of capacitors (200a to 200d).</p> |
