適合通信系統的低壓、大電流電源的現狀及展望

摘要：本文主要介紹通信系統中低電壓大電流電源設計所面臨的穩壓、散熱、輸入噪聲和成本等方面的問題,分析了多相技術、板上電源、同步整流和次級控制等新技術，給出了一種低電壓大電流電源的設計實例。 敘詞：通信電源 多相技術 板上電源 同步整流 有源箝位 次級控制 Abstract：In this paper，the severe challenge facing with voltage stabilization，heat dissipation，import noise，cost and so on in the designing of low voltage and high current communication power supply is introduced briefly，the new technology，such as multiphase technology，on-board supply，synchronous rectification，and secondary control are discussed in detail. Finally，a design example of low voltage and high current communication power supply is presented. Keyword：communication power supply，multiphase technology，on-board-supply，synchronous rectification，secondary control