Self-adjusting emergency power supply system

The utility model relates to the technical field of emergency power supplies, and provides a self-adjusting emergency power supply system, which comprises a battery charging circuit, a booster circuit, a detection output feedback control circuit, a control output circuit, a compensation output current deviation circuit, a booster electronic switch, an indicating lamp, a key test circuit, a control relay switching circuit and a singlechip, the whole circuit controls the relay to automatically adjust and output alternating current or direct current to supply power to the load element through the single-chip microcomputer according to the attribute of the load element. According to the technical scheme, the problem that an emergency power supply in the prior art can only adapt to an alternating current load is solved. 本实用新型涉及应急电源技术领域，提出一种自调节应急电源系统，包括电池充电电路、升压电路、检测输出反馈控制电路、控制输出电路、补偿输出电流偏差电路、升压电子开关、指示灯和按键测试电路、控制继电器切换电路、单片机，整个电路通过单片机根据负载元件的属性控制继电器自动调节输出交流电或者直流电来为负载元件供电。通过上述技术方案，解决了现有技术中的应急电源只能适配交流负载的问题。