符合待機規範之交流/直流轉換器的研製

Design and Implementation of AC/DC Converter Met Energy Efficiency Code under Standby Condition

黃柏騰(Bo-Terng Huang)

指導教授 ： 賴炎生

國立臺北科技大學/機電學院/電機工程系所/碩士(2006年)

https://doi.org/10.6841/NTUT.2006.00066

摘要

本論文主要研製一於待機模式時能符合綠色能源規範之交流/直流轉換器，本文的貢獻為設計功率因數校正電路切離（PFC-OFF）控制電路與輔助電路，藉此減少待機能源消耗，以符合綠色能源規範。
此外，本文所提出之方法不需使用電流感測器與磁滯電路即可偵測負載情況，可以達到減低成本與防止電流雜訊干擾之功用。
本文所研製之轉換器規格如下：輸入交流電壓：AC 90~265 V，50~60 Hz；輸出直流電壓：19 V；輸出功率：250 W；待機功率消耗（歐洲與日本規格，輸入電壓為265 V/AC）：輸入功率小於1 W。
實驗結果驗證了電路的分析與設計，且當輸入交流電壓在AC 90~265 V範圍內，輸出滿載時之輸入功率因數皆可高於98%。此外，也可滿足待機功率消耗小於1 W之綠色能源規範需求。

關鍵字

交流/直流轉換器 ； 功率因數校正

並列摘要

The objective of this thesis is to design and implement an AC/DC converter which meets the green power specifications under standby condition. The contributions of this thesis include design of PFC-OFF control and auxiliary circuit which will significantly reduce the standby power to meet the energy code under standby condition.
Moreover, it will be shown that these circuits don’t need any current sensor and hysteresis circuit to detect the load condition, which can reduce the cost and avoid false activation caused by current noise.
The specifications of converter are as follows: universal input voltage: AC 90~265 V, 50~60 Hz; output voltage: 19V/DC; output power: 250W; standby power (European and Japan Specifications): input power<1 W @ 265 V/AC input.
Experimental results are presented to fully support the analysis and circuit design. It has been demonstrated that the input power factor is greater than 98% in the whole voltage range and full load condition. The power consumption under standby condition is less than 1 W confirming the design and implementation.

並列關鍵字

AC/DC converter ； Power factor correction(PFC)

參考文獻

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[19] V. Anunciada and H. Ribeiro, “Single stage AC/DC converter with input power factor correction,” IEEE Trans. Industrial Electronics, vol. 3, no. 2, pp. 2933 -2938, Nov. 2003.