| 摘要 |
PROBLEM TO BE SOLVED: To enhance noise resistance by improving the impedance frequency characteristics of a filter capacitor plus a pattern and eliminating the adverse effects of the pattern. SOLUTION: A filter capacitor 8, disposed between the output terminal of a rectifier circuit 1 and a frame ground, is mounted in the vicinity of the output terminal of the rectifying circuit 1. The filter capacitor 8 has one terminal wired, through the shortest route, to the output of the rectifying circuit 1 and the other terminal wired, through a shortest route, to a land 14 on a printed board 4 arranged in the vicinity of the output terminal of the rectifier circuit 1. A conductive stud 10 is provided between the land 14 and a heat sink 3 and screwed to the land 14 on the printed board 4. |
