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Author Topic: Electric car chargers, new RFI ?  (Read 382 times)

Offline Ray Lalleu

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Electric car chargers, new RFI ?
« on: December 04, 2020, 2056 UTC »
There are a few electric or hybrid cars in my neigbourhood,
and also an increase of RFI noise on evenings...

I suspect that the battery chargers might be producing that increase of noise.

What do you think ?
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Offline Beerus Maximus

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Re: Electric car chargers, new RFI ?
« Reply #1 on: December 04, 2020, 2148 UTC »
Yes.
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Offline Charlie_Dont_Surf

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Re: Electric car chargers, new RFI ?
« Reply #2 on: December 24, 2020, 2216 UTC »
Agree, though your RFI could be coming from many items.

I can guarantee that the hybrid vehicle chargers are not linear supplies; they are for sure switching supplies. Hence the noise. This has been documented by others.

I noticed that my iPhone battery charger for my automobile has one of those (what I call) "wandering oscillators" - Randomly hops around +/- a few hundred Hertz, like a very, very unstable VFO. Of course, one of locations of the output products is right in the 43 meter band.

My house came with mains power outlets for the bathrooms that have built in LED night lights. These outlets produce incredible amounts of HF noise and will be replaced. Fortunately my recessed ceiling LED lights, which would be much more complicated to replace, do not seem to produce much noise.

My refrigerator, my washing machine and my clothes dryer are noise generators.
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Offline wogggieee

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Re: Electric car chargers, new RFI ?
« Reply #3 on: December 24, 2020, 2244 UTC »
I recently did a noise survey in my house and found most of my noise problems were coming from inside my house and primarily from my computers. 
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