| 摘要 |
PROBLEM TO BE SOLVED: To provide an actuator drive controller which efficiently dissipates heat of a drive element. SOLUTION: In the actuator drive controller having the drive element 11 for driving the actuator, a substrate 12 on which the drive element 11 is loaded, a case 13 for housing the substrate 12, and a heat sink 14 for dissipating the heat generated from the drive element 11 to the outside of the case, the heat sink 14 is in contact with the upper face of the drive element 11, and the case 13 is equal to or more than the drive element 11 and the substrate 12 in coefficient of thermal expansion. COPYRIGHT: (C)2003,JPO
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