摘要
设计了一种基于LM5117芯片的降压型直流稳压电源,电路输入电压范围32V至56V、输出电压5V,输出最大电流8A,适用于安装在电动自行车上,可同时满足4路2A电流USB接口供电,系统待机功耗低、转换效率高,具有过流保护、欠压保护、软起动等功能,经过实际测试验证,系统稳定可靠,具有很高实用价值。
A buck DC regulated power supply based on LM5117 chip is designed. The circuit input voltage range is 32 V to 56 V, output voltage is 5 V, and output maximum current is 8 A. This device is suitable for mounting on an electric bicycle, and can simultaneously satisfy 4 way 2 A current by USB interface. The system has the advantages of low standby power consumption, high conversion efficiency, over-current protection, under-voltage protection, soft start, and other functions. Through actual test and verification, the system is stable and reliable, and has high practical value.
出处
《电子技术（上海）》
2017年第12期57-59,共3页
Electronic Technology
关键词
稳压电源
转换效率
纹波电压
过流保护
regulated power supply
conversion efficiency
ripple voltage
overcurrent protection
