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2.2 The principle of the product
Fig. 2-1 UPS Principle Diagram
1. Input filter: Complete filtering the input AC utility power to provide the
clean power for UPS.
2. AC/DC converter: Convert the filtered AC mains to DC and boost the
DC for DC/AC inverter.
3. DC/DC booster: When the UPS works in battery mode, the circuit
boosts the DC for DC/AC inverter.
4. DC/AC inverter: Convert the boosted DC to stable AC output.
5. Bypass: When overload or failure of inverting happen in the UPS, it
transfers to bypass mode to supply power to loads.
6. Charger: Standard unit provides 1A; long backup unit provides 6A
Max.
7. Battery: Sealed Lead Acid Battery.
8. Output filter: Complete filtering the output of the UPS to provide the
clean power for loads.
