question

obelisk avatar image
obelisk asked

SmartSolar Charge Controller MPPT 150/35 Switching Frequency(s) for selecting RFI Ferrite Choke(s)

Looking to reduce the RFI from a SmartSolar MPPT 150/35. Can any one advise the switching frequency(s) generated by the device? (Amateur Radio RFI concerns - HF 1.8Mhz - 30MHz, 54MHz, etc)

Many thanks -

MPPT Controllersfrequency
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1 Answer
jjbond avatar image
jjbond answered ·

I had massive RFI from my MPPT 250/100, tracked it down to the PV wires from the panels. I did 20 wraps of each PV wire through one of these mix 31's which are effective from 1-300 MHz from Palomar Engineering, I did the wrap within 6" of the end where it goes into the MPPT, it was like night and day.

https://palomar-engineers.com/ferrite-products/ferrite-cores/ferrite-ring-toroid-combo-pack


73

Jen

KB6JEN/VE7OTH


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Related Resources

MPPT Product Page

MPPT Error codes

MPPT 150/60 up to 250/70 Manual

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