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Old 03-22-2009, 01:24 AM
Mutten Mutten is offline
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Join Date: Aug 2008
Posts: 85
Played around with large L2s and charging batteries last night and today. No reason other than those nicely wound coils look so pretty~

Rectifier made from 1n4001's

No results were recorded other than from memory, just wanted to see if it would do it.

First L2 measures in at 114uH.

http://i197.photobucket.com/albums/a...SEC15-3033.jpg

Scope shot
http://i197.photobucket.com/albums/a...SEC15-3036.jpg

Held 5.80 volts on the charging battery overnight. Batteries started at 4.92 and hit a wall around 5.27 and wouldn't go any higher. Drawing around 30 mA.

Switched to larger core today, measures in at 162 uH. Discharged the batteries on my LaCross battery charger back down to 4.92 and started again. Started off at 6.05v on the charge batteries and slowly dropped back down to 5.80 +/-2. Batteries hit a wall around 5.31v and wouldn't go any further. Also using more than twice the power at 77 mA.

http://i197.photobucket.com/albums/a...SEC15-3042.jpg

Scope shot seems more spiky.

http://i197.photobucket.com/albums/a...SEC15-3037.jpg

L1 was a measly 1.5uh and L3 adjustable around 4uH (guesstimate)


Like Freezer said, I'm probably working in the wrong direction.

(also tried that pseudo Tesla coil setup with similar results)
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Last edited by Mutten; 03-22-2009 at 01:29 AM. Reason: uH not mH
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