基于太阳能的双电源供电与自动切换系统

采用2组磷酸铁锂电池为储能装置,以MSP430F2274超低功耗单片机为控制器,设计了一种基于太阳能电池板充电并可在双电池组间自动切换的供电系统,实现了在户外为供电范围为1.8～11V的小型仪器及仪表设备的不间断连续供电.论述了系统的工作原理,给出了系统在电压检测、充放电均衡及自动切换等环节的详细设计方案.实际使用结果表明,此系统可以长时间在户外稳定工作,并具有最大2.5A的电流输出能力,且其体积小,寿命长,无污染,使用灵活方便.

Double power supply and automatic switch system based on solar panels

Two sets of lithium iron phosphate as the energy storage and MSP430F2274 ultra-low-power single-chip as controller,we designed a power supply system based on solar panels charge the battery pack which could automatically switch between dual,supply outdoor power and uninterrupt continuous for the small instruments and instrumentation which working voltage is in range of 1.8-11 V.The system working principle was discussed,the system voltage detection,and automatic switching charge-discharge balance and other aspects of detailed design were described.The results showed that this system could be stable for a long time in the outdoors,and had 2.5 A maximum output current capability,which was small in size,had long life span,and could be easy-used without pollution.