In addition to the above two types of apcups power supply, there is also an online interactive type

Online interaction is that the inverter works in two directions. When the AC input power supply is normal, the inverter works in reverse phase to charge the battery. When the power is cut off, the change-over switch is disconnected and the battery provides output. Compared with the backup APC power supply, the inverter and output of the modified apcups power supply are always connected, so it can play a role of filtering and shockwave for the power supply. The inverter also has voltage stabilization. Debugging function, otherwise the low voltage will force the apcups to switch to the battery power supply mode, so the APC power supply can still operate normally in the place with poor quality of the mains power supply. The design of inverter makes it can be output directly by AC input power supply even if it breaks down, eliminating the hidden danger of "one failure, global collapse", and effectively providing two independent power channels. The efficiency of online interactive apcups power supply is very high, that is, the inverter is in the hot standby state and the sine wave output. At the same time, it also has the function of charging the battery, improving the power capacity of the backup apcups without interruption, shortening the conversion time in case of mains power failure, strengthening the filtering effect on the output voltage, and having the functions of wide input voltage range and automatic voltage regulation, including online boosting and reducing voltage. It combines the advantages of online mode and eliminates the disadvantages of backup mode.

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