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Description
The purpose of a UPS is to provide a perfect power supply voltage for the devices connected to it, irrespective of
whether the mains power supply is present or not. Once connected and powered, the UPS generates a sinusoidal
alternating voltage with a stable amplitude and frequency, regardless of any changes and/or variations occurring on
the electricity grid. Whilst the UPS receives energy from the mains supply, the DSP will ensure that the connected
batteries remain charged. The DSP also monitors the amplitude and frequency of the mains voltage, the amplitude
and frequency of the voltage generated by the inverter, the load applied, the internal temperature and the condition
of the connected batteries.
The block diagrams below show each of the components that make up the UPS for both single and dual input
versions.
Block diagram showing the single input UPS (without separate bypass)
