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小莘 asked in 科學工程學 · 1 decade ago

Power Supply EMI與外殼

請問 Power Supply使用的外殼有塑膠和金屬的,那一種對抑制EMI的效果比較好。

1 Answer

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  • 1 decade ago
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    金屬材質本身的效果比塑膠的好。

    但是受限於設備設計的價格、機械結構特性、空間...等設計考量。

    在業界對於塑膠已經許多EMI遮蔽材料解決方案,例如:導電布膠帶,泡棉,導電網,套管,銅箔,鋁箔膠帶.絕緣導電複合材料,。

    或是利用:SMD ESD靜電放電抑制器 及 Surge突波抑制 EMI濾波器保護元器件 (Surface Mount).來降低EMI。

    Source(s):
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