筆記型電腦關機時可使用 Thunderbolt USB Type-C Power Delivery 功能

Summary: 當筆記型電腦關閉,但連接至交流電源時,Power Delivery 會繼續運作。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

當電腦關機時,電腦上的 Thunderbolt USB Type-C 連接埠可能會繼續輸出電力,為其他裝置充電。

受影響的平台:

  • Dell 14 高階DA14250
  • Dell 16 Premium DA16250
  • Precision 3550
  • Precision 5550
  • Precision 5750
  • XPS 13 9300
  • XPS 14 9440
  • XPS 15 9500
  • XPS 16 9640
  • XPS 17 9700

Cause

如果電腦連接至 AC 電源供應器,則會啟動 Thunderbolt USB Type-C Power Delivery 功能。任何週邊裝置 (例如手機、藍牙裝置) 連接至電腦進行充電,會在電腦本身關機時持續充電。

Resolution

電腦正在按照設計規格運作。

電腦 BIOS 中沒有可停用 Thunderbolt USB Type-C Power Delivery 功能的選項。若要使連接埠斷電,您還必須從電腦拔下 AC 變壓器。

Affected Products

XPS 14 (Dell 14 Premium) DA14250, XPS 16 (Dell 16 Premium) DA16250, Precision 3550, Precision 5550, Precision 5750, XPS 13 9300, XPS 14 9440, XPS 15 9500, XPS 16 9640, XPS 17 9700
Article Properties
Article Number: 000061589
Article Type: Solution
Last Modified: 18 Apr 2026
Version:  8
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