摘要
本文提出了一款新型Buck+Boost电路级联的LED灯应急电源电路,设计核心是由MT7844S与MT7261组成的Buck升压电路与Boost降压电路,并通过掉电控制电路实现正常市电供电与应急备用电源供电切换,维持LED灯照明。
This paper proposes a LED emergency lamp power circuit is a new type of Buck＋Boost circuit, Buck circuit design core is composed of MT7844 S and MT7261 and Boost circuit, and the power control circuit to realize the normal electricity supply and emergency standby power supply switch, maintain LED lamp lighting.
作者
蔡卫斌
Cai Weibin(Chenghai vocational and technical school, Shantou Guangdong, 515800)
出处
《电子测试》
2018年第7期5-6,共2页
Electronic Test
