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不间断电源(简称UPS)应用领域十分广泛,目前市场上销售的类型有两种:一种是在线UPS;另一种是离线UPS。一、在线UPS工作原理市电经过整流、滤波后的直流电压分成二路:一路输送到UPS的逆变器转换成220V/50Hz的标准稳压电源输出给用户负载使用;另一路输送给蓄电池充电。当市电停电时,蓄电池即可不间断的接续通过逆变器为用户供电。这种电源由于输入与输出完全间
Uninterruptible Power Supply (UPS) has a wide range of applications, there are two types currently on the market: one is online UPS; the other is offline UPS. First, the working principle of online UPS After rectification, the DC voltage filtered into two: all the way to the UPS inverter into 220V / 50Hz standard power supply output to the user load use; the other way to the battery charge . When the mains power outage, the battery can continue uninterrupted through the inverter to power users. This power supply due to the complete input and output