利用變壓器實(shí)現(xiàn)電子鎮(zhèn)流器的局部整流效應(yīng)保護(hù)功能

摘要：采用高光效的熒光燈并匹配低能耗的電子鎮(zhèn)流器，目前仍是室內(nèi)照明的首先產(chǎn)品。燈管管徑的適當(dāng)變細(xì)，使燈的光效得到提高，但也造成了當(dāng)制作不良或在燈壽命后期發(fā)生局部整流效應(yīng)時(shí)造成的危害。本文提出了利用變壓器檢測(cè)異常時(shí)的信號(hào)，實(shí)現(xiàn)電子鎮(zhèn)流器在熒光燈出現(xiàn)局部整流效應(yīng)時(shí)的保護(hù)功能。 敘詞：熒光燈 電子鎮(zhèn)流器 局部整流效應(yīng) 變壓器 Abstract：Fluorescent lamps having high luminous efficacy equipped with electronic ballast having low power consumption is still the first choice among the indoor illuminating products at present. Proper thinning of the tube not only increases luminous efficacy of the lamp but also bring damage when the lamp is poorly made or at the end of the life. A way of detecting the signal in abnormal condition by transformer, thus realize protection function for electronic ballast when lamp meet rectifying effect situation is given in this paper. Keyword：Fluorescent, Electronic ballast, Rectifying effect, Transformer