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Author Topic: Torroid cores for energy harvesting from the mains?  (Read 695 times)

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Offline FaringdonTopic starter

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Torroid cores for energy harvesting from the mains?
« on: September 28, 2022, 05:33:20 pm »
Hi,
Just noticed that digikey etc dont stock split powdered iron cores for clipping round house incoming line so that small amounts (~1W or so) of  energy can be harvested from the mains.
Do you know of any offtheshelf parts?

Thes nano-crystalline cores are available but are not sold as "split".
http://www.gaotune.com.hk/nanocrystalline-core/ring-core/nanocrystalline-current-transformer-core-17.html
« Last Edit: September 28, 2022, 05:35:48 pm by Faringdon »
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Offline pardo-bsso

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Re: Torroid cores for energy harvesting from the mains?
« Reply #1 on: September 28, 2022, 09:45:45 pm »
Why would them?

Also, as everybody knows, the amount of power you can extract depends on the load applied to the mains ring.
What's the real problem that you are trying to solve?
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Offline FaringdonTopic starter

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Re: Torroid cores for energy harvesting from the mains?
« Reply #2 on: September 29, 2022, 09:13:46 am »
its like in this device...
https://youtu.be/7U9f4v1OAsw

It gets all its power by harvesting from the mains.

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Offline jonpaul

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Re: Torroid cores for energy harvesting from the mains?
« Reply #3 on: September 29, 2022, 10:28:47 am »
"split toroid" is not stocked anywhere.

Use UU or UI ferrite.

Check Micrometals for Powdered iron

Jon
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