·The Difference Between Inverter and UPS
First, Introduction to inverter power
Traditional inverters convert DC stored the energy container (such as batteries) into everyday use 220V (or 380V) AC power. It is mainly used in communications (48V), rail (110V) and power (220V) industry. The inverter power stage has been developed as a city bypass input power, charging function, there are two ways of working, one is a DC-based, normally, by the DC into AC by the inverter circuit to work when the power failure to bypass the municipal electricity directly to the load; a kind of alternating current is dominated by the AC by the normal rectifier, inverter circuit into AC output, when electricity is not converted to DC by the inverse normal change the circuit into AC. Current inverter applications received will be more communication, railway, power DC power system DC-screen, so that requires DC input the anti-irrigation use of advanced noise suppression technology, and other common communication devices DC-screen each other interference; AC input preferably input isolation transformer, power inverter with power to completely isolate and eliminate the interference of city electricity grid to meet the application needs of the main AC power supply.
Second, the difference between inverter power supply and UPS
UPS is in the normal work of a direct AC power, the maintenance of alternative working conditions (or online), when the power cut immediately after the power supply to inverter. The difference in design is: taking into account the inverter power supply to run continuously for long time, and UPS (back-up or on-line interactive type) is the short run. Affect the circuit structure, the performance was: with capacity UPS (back-up type or line interactive) of the power components and cooling structure is smaller than power supply, which may be reflected in the price of the price with the capacity of the UPS and Inverter Power was close. It has been trying to UPS (back-up type or line interactive) use as a power source, the above analysis and test, shows that the plan not feasible. Inverter with the current development needs of the market also with the charge, voltage conversion function, and features close to the line type UPS. Some people may ask, cannot choose-line UPS it? Program is feasible, but taking into account and DC systems in use, interference problems.
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