基于CS1500設(shè)計(jì)的90W高效PFC電源技術(shù)
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本文介紹了CS1500主要特性,方框圖,基本應(yīng)用電路和材料清單,以及90W高效PFC LLC諧振轉(zhuǎn)換器參考設(shè)計(jì)電路圖和材料清單(BOM).
CS1500是Cirrus 公司的適用于通用輸入的高性能功率修正因素(PFC)控制器,采用有所有權(quán)的數(shù)字算法的不連續(xù)導(dǎo)通模式(DCM),具有可變的接通時(shí)間和可變頻率控制,從而保證PFC為一. CS1500的保護(hù)特性包括過(guò)壓,過(guò)流,超功率,開(kāi)路和短路以及超溫保護(hù),主要用在電源和照明鎮(zhèn)流器設(shè)計(jì).
圖1.CS1500方框圖
圖2.CS1500基本應(yīng)用電路圖
應(yīng)用電路中元件數(shù)值表:
90W高效PFC LLC諧振轉(zhuǎn)換器參考設(shè)計(jì)
CS1500 90W, High-efficiency PFC w/ LLC Resonant Converter Reference Design
The CRD1500-90WLLC circuit has two stages: a digitally controlled front-end PFC and a resonant LLC converter. The CS1500 is a high-performance power factor correction (PFC) controller for universal AC input that uses a proprietary digital algorithm with variable ontime, variable frequency, DCM, which ensures unity power factor.
The resonant LLC converter uses the L6599A controller in the second stage.
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