| 摘要 |
PROBLEM TO BE SOLVED: To prevent characteristics of temperature rise from being defferent due to non-uniform heat values in respective circuits. SOLUTION: When multiple axes are controlled by one control board, surface mount devices having the same shape are employed as the multiple output semiconductor devices used in motor driving circuits to be arranged on the same surface and a single aluminum heat sink is fixed so as be in contact with the semiconductor devices. The surface temperatures of the respective devices are uniformed, thereby uniforming the temperatures of the peripheral components. COPYRIGHT: (C)2009,JPO&INPIT |
