RFI from Blue Sky MPPT controller. Choke or ?
Hi to the ham radio and other rfi tech types: My mppt controller is creating a lot of rfi. Very noisy on AM broadcast band and all the HF bands through 10 meters on SSB or CW The noise increases...
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Changing pwm frequency from 300 Hz to 100 kHz shouldn't effect RFI. It's the fast rise & fall times of the switching FET that generates the noise.
I doubt the OP can do anything other than turn off solar when electrical noise is an issue.
Sal
I doubt the OP can do anything other than turn off solar when electrical noise is an issue.
Sal
KJINTF wrote:
Morningstar knew about the RFI issue and raised the PWM switching speeds on their newer models from about 300Hz to over 100 KHz.
