广东省新会县商业局技革组,为防止商店突然停电,试制成日光灯交直流电源自动转换器装置,即停电时,日光灯自动转用直流电源。供电恢复时,日光灯自动转用交流电源。转换时间小于0.03秒。该转换器结构简单,成本低廉,亮度适中,使用安全。接通电源开关K,继电器动作,J的常闭 Xinhui County, Guangdong Province, Bureau of Technology leather group, in order to prevent a sudden power outage in the shop, try to make a fluorescent lamp AC-DC power supply automatic converter device, that is, power failure, the fluorescent light automatically switch to DC power. When the power supply is restored, the fluorescent lamp is automatically switched to AC power. Conversion time is less than 0.03 seconds. The converter has the advantages of simple structure, low cost, moderate brightness and safe use. Turn on the power switch K, the relay action, J’s normally closed