FSP Technology EP 1000 Series Specification page 7

2.6 CPU ( MOTOROLA/ MC68HC908JL8CSP)
The Central Process Unit
2.7 Electricity Sw itch
It controls the + 5Vdc and + 12Vdc supplies.
+ 5Vdc and + 12Vdc Control Power Generator.
Provide + 5Vdc (generated from 7805 regulator) and + 12Vdc power supply.
2.8 Charger:
The source for the Charger comes from the mains through the transformer and
full-bridge inverter. The charger is controlled with high frequency technology and
the acceptable charging voltage is 13.6~ 13.9V.
2.9 I nverter Circuit:
The inverter circuit is based on a full-bridge circuitry.
2.10 I nterface Circuit:
Vesta 1000: The UPS display device contains three LEDs and one switch.
Vesta 1500/ 2000: The UPS display device contains six LEDs and one switch.
2.11 Batteries:
Acts as a power supply source while the UPS is on battery mode. Different types
of batteries are used for different models of UPS:
1000VA: 12V7Ah * 2 pcs or equal capability
1500VA: 12V45W * 2 pcs or equal capability
2000VA: 12V45W * 2 pcs or equal capability
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Figure S-1 Block Diagram
Rev. A