Cheap solar for the Upgrade


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Bryan1

Guru

Joined: 22/02/2006
Location: Australia
Posts: 1450
Posted: 06:09am 22 Dec 2023      

G'Day Guy's,
           Had a good look around my shed and found I finally run out of that enameled 6x3 wire   Anyway I do have that spool I annealed on my crab burner and sure enough all the insulation is gone, now I did find enough heat shrink to use so I'm going to wind the same type of inductor as I used in my first MPPT. When I was at Rodger's we did measure it and it was off memory 69uh and as I did use 10 turns i'll do the same on this one.

Cheers Bryan

Edit: Well just had to have a go and it was a bit of fun but the second inductor is made




Now to settle down the wire I used some 10 mm plexi glass and it did really help that this thick wire was fully annealed as I only had 3mm spare on the height to get the 2 layer thickness in so the E-cores would would fit. I did sort of work out 2.5 metres of wire and I only had 2.7 metres of heat shrink and when i got the 10 turns done I didn't need to trim the wire at all.

Now the photo doesn't show it but I did hard solder those fitting on
Edited 2023-12-22 17:59 by Bryan1