Hi,
I am working on a 2kW PFC using the UCC28070 controller with voltage input from 85 VAC to 240 VAC and output of 390 VDC. I am intending to use it as a modular device that could be used in parallel to achieve highest power levels until 10kw.
I am aware of the modifications to make it work in multi-phase operation. One question is: In a parallel arrangement of the modules working in multi-phase operation there is the possibility to disable one or more modules in case of no load or light loads?
Second one: As the output capacitor value is calculated for a single operation, could the controllers have any difficult in parallel operation at light loads? I mean, could the total value of the output capacitance become too high?
Thank all!