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?
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?
Here is a table of the THD results for the 300W eval board at various power levels.