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EP82:【HPC】AI伺服器DC/DC電源設計有門道,高整合與低損耗為兩大基本訴求 ft. 英飛凌消費、計算與通訊業務大中華區 陳世偉經理 episode artwork

EPISODE · Apr 15, 2025 · 23 MIN

EP82:【HPC】AI伺服器DC/DC電源設計有門道,高整合與低損耗為兩大基本訴求 ft. 英飛凌消費、計算與通訊業務大中華區 陳世偉經理

from Tech666 · host alex.sun

繼上一集我們跟英飛凌的 Mac聊完之後,終於知道 48V DC電源設計的由來。但其實,AI伺服器 DC/DC的電源設計還是有不少門道在裡面,舉例來說:從控制晶片、驅動 IC到 MOSFET,是相當常見的電源系統設計的架構。由於AI伺服器的DC/DC電源的設計空間相對有限,驅動IC與MOSFET的整合,也成了不可逆的發展趨勢。另外一方面,我們在上一集就知道,減少電流損耗,是48V系統誕生的主要原因,更進一步的說,電流的精準控制也成了電源設計很重要的關鍵。當然,從系統空間的考量上,像是晶片埋進PCB的封裝或是垂直供電技術,都是不可或缺的因素。本集重點:1. 因應CPU/GPU功率不斷提升,DC/DC電源晶片朝高整合度方向發展2. 電流控制得宜,散熱沒煩惱3. 系統空間有限,垂直供電設計降低傳輸損耗

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EP82:【HPC】AI伺服器DC/DC電源設計有門道,高整合與低損耗為兩大基本訴求 ft. 英飛凌消費、計算與通訊業務大中華區 陳世偉經理

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