Multiple AC Sources Feeding DC Bus

[KatyDave]

Would there be any problems in feeding a common DC bus via mutiple AC sources, each with its own bridge rectifier. The AC sources would be of approximatley the same voltage (115VAC).

For instance utility and UPS AC power sources feeding a common DC bus which in turn powers a DC/DC switching power supply.

 

[mgtrp]

There should be no problems with having multiple AC sources, just make sure that your rectifiers are happy operating in parallel with each other.