An immediate difference between this design and the beforehand described off-line system is that the battery charger is changed by a `rectifier/charger` black. The rectifier/charger may be two separate units or a combined power black. When the mains supply is present this black float costs the battery and supplies the inverter with a stable de voltage. In the absence of the mains provide the charger shuts down and the inverter dc provide is supplied by the battery, which begins to discharge. The connection between the rectifier/battery and inverter is often often known as the dc busbar , or dc bus.
Commodore 64 Computer
One of the drawbacks of the straightforward off-line design is that the load must be transferred to the inverter instantly the bypass supply voltage reaches voltage limits acceptable to the load. Which means the UPS might switch between bypass and inverter quite incessantly if it is set … Read More