An uninterrupted power supply device

The utility model provides an uninterrupted power supply device supplies power to the load, a serial communication port, include: the power module, switch motion is carried out to this power module, and the control unit, this the control unit obtains the temperature of power module or an uninterrupted power supply device's output current, and judge the temperature of power module or whether an uninterrupted power supply device's output current exceedes the setting, does in the judgement the temperature of power module or an uninterrupted power supply device's output current exceedes under thecondition of setting, make an uninterrupted power supply device is right the output frequence of load reduce so that the temperature of power module reduces. 本实用新型提供种不间断电源装置，对负载进行供电，其特征在于，包括：功率模块，该功率模块进行开关动作；以及控制单元，该控制单元获得所述功率模块的温度或所述不间断电源装置的输出电流，并判断所述功率模块的温度或所述不间断电源装置的输出电流是否超过规定值，在判断为所述功率模块的温度或所述不间断电源装置的输出电流超过所述规定值的情况下，使所述不间断电源装置对所述负载的输出频率降低以使得所述功率模块的温度降低。