A relay or static bypass switch that transitions between mains and battery power without interrupting the load. Accessing the Circuit Diagram PDF
Knowing the exact model number (found on the back sticker) can help me find the specific component values for you. Homage UPS Schematic Circuit Diagram - Atmega32-AVR.com Homage Ups Circuit Diagram 1000va Pdf
The core functionality revolves around two main states: A relay or static bypass switch that transitions
Converts DC battery power into AC voltage when the main supply fails. Charging Circuit: Often utilizes specialized ICs like the for high-efficiency pulse-width modulation (PWM) control. Switching Mechanism: Charging Circuit: Often utilizes specialized ICs like the
In solar models (SCC), this includes an or PWM charge controller. Control Logic (MCU):
⚠️ UPS circuits contain high voltages (230V AC, 400V DC bus). Only trained personnel should attempt repair or reverse engineering.
This is the input section. When the UPS is plugged into the wall, the AC mains enter here. In older UPS designs, simple bridge rectifiers were used. However, modern Homage units often utilize PFC circuits to improve efficiency and reduce harmonic distortion.