With the rapid development of telecommunication technology, the structure of telecommunication network is becoming more and more complex.

The inverter power supply circuit is easy to produce a lot of heat under the condition of high voltage, high current and high frequency, in addition to taking appropriate cooling measures (such as…

　　The isolation transformer mentioned here refers to the power frequency transformer working at 5OHz frequency. In the UPS power supply system, the isolation transformer is a main component. According to the difference of…