本論文主要研製一待機耗瓦符合綠色能源規範之數位控制交流-直流轉換器。本論文的貢獻為設計一低耗瓦之啟動電路,並提出ㄧ判別待機方法,藉此減少待機能源消耗,並符合綠色能源規範。本文所研製之數位電源轉換器的詳細規格如下: 額定功率:100瓦 額定輸入電壓:交流100伏~120伏 (額定為110伏) 額定輸出電壓:直流24伏 無載耗瓦:低於0.5瓦(不含FPGA Power) 功率因數:滿載條件下,功因高於0.95 實驗結果係以Xilinx® FPGA基礎之控制系統來設計與實現,由實驗結果顯示在滿載輸出時之輸入功率因數可達到0.996以上;此外,亦可滿足待機功率消耗小於0.5 W之綠色能源規範需求。
The objective of this thesis is to design and implement a digital-controlled AC-DC converter which meets the green power specifications under standby condition. The contributions of this thesis are to design a low power consumption of start circuit, and presents a method to identify standby condition. It will significantly reduce the standby power to meet the energy code. The specifications of digital-controlled converter are as follows: Power rating: 100W Input voltage rating: AC 100~120 V (nominate value = 110 V) Out voltage rating: DC 24V No load power consumption: < 0.5 W (without including FPGA power) Power factor: > 0.95 at full load The digital controller of AC-DC converter is implemented using Xilinx® FPGA-based board. It has been demonstrated that the input power factor is greater than 99.6 % in the whole voltage range and full load condition. The power consumption under standby condition is less than 0.5 W confirming the design and implementation.