im looking for a pfc for a new application
input voltage: 380Vac to 440Vac 50Hz.
output voltage: 700V. 750V is possible too.
output power 2KW.
switching freq: 200Khz.
we dont want to use interleave solution.
the main demand is PF>0.99 and THD<3%.
can the ADP1047 meed those damands?
can you provide the eval board or similar app THD and PF spread sheet results from 20%Load to 100%Load?
Here is a table of the THD results for the 300W eval board at various power levels.
Hi Dudu Dayan,
The ADP1047 (single phase) can support all the features in your query. However, about THD - that is something that depends on the inductor and mainly the external EMI filter. This part is controller independent.
We've done power stages that were at 3.3kW which a pf> 0.99. The current THD is very much dependent on the control loop and that in turn is dependent on the inductor used.
Lt Comm Data
thank for the quick reply,
i would like to use this ic for a big project and I need some results to rely on.
currenty we are using some TI Pfc that declares THD<3%.
can you proved some THD results and reference design from your experience with this IC?
Uc3854a for instance - line current distortion <3%
Can you share some spread sheet for the THD results for the 300w&600w eval boards?
I don't have anything that I can share with you as the designs are under NDA. Can you point me to the link from TI that claims this?