Choosing an inductor for HiperPFS
Hello,
I have used the PIXIS designer software to design a PFC boost-based backend, in order to add a buck LED driver to its output.
It has suggested the following PFC inductor:
LPFC140uH
LPFC (0 Bias)751uH
LPFC_RMS4,09A
LP_TOL10%
Inductor Construction Parameters
Core TypeSendustSendust
Core MaterialAuto125u
Core GeometryAutoTOROID
CoreAuto77548(OD=33.8)
AE65,6mm^2
LE81,4mm
AL127nH/t^2
VE5340cm^3
HT11,43mm
MLT42,7mm
BWN/Amm
NL77
LGN/Amm
ILRMS4,09A
Wire typeLitzLitz
AWG40AWG
Filar170
OD0,079mm
AC Resistance Ratio1,10
I was thinking if I could use an off the shelf inductor, like this one
http://www.digikey.com/product-detail/en/bourns-inc/2300LL-151-V-RC/2300LL-151-V-RC-ND/725912
It has almost the recommended specs in inductance and current.
Regards,
Thiago
评论
Great, thanks. I´ll ask the manufacturer about the inductance at zero bias.
Hi,
It is quite difficult to find standard inductors depending on the design.
Could you suggest a custom inductor manufacturer?
for PFS operation, the inductance at 0 bias current also impact the operation in each cycle, particularly near the zero crossing of each cycle. the specs does not have the inductance at 0 bias. You can try it.