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6Instructables978,518Views171CommentsSibiu, Romania
I am a graphic designer with many hobbies. I love electronics, computers, LEDs and all things tech.

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  • Fixing samsung galaxy tab broken cable charger

    Hi. I just finished something similar, my cord was very slow at charging. I thought it was the various non-Samsung chargers I tried, none of them charged with more than 500 mA. Turns out it was the cord. And a bit of extra soldering.I took the original 30-pin connector out of the original cable, in a manner similar to yours. Then I took the thickest USB cable I found, 24 AWG I think and soldered the connector at one end, where the original MiniUSB end was before (I cut it out). A bit of hot glue made things sturdy prior to closing the connector's cap.Now this new wire would work perfectly with the original charger and allow high-current charging. Anyone having the original charger can stop here. But I have no such charger.To get rid of the need for the original Samsung charger, I google...see more »Hi. I just finished something similar, my cord was very slow at charging. I thought it was the various non-Samsung chargers I tried, none of them charged with more than 500 mA. Turns out it was the cord. And a bit of extra soldering.I took the original 30-pin connector out of the original cable, in a manner similar to yours. Then I took the thickest USB cable I found, 24 AWG I think and soldered the connector at one end, where the original MiniUSB end was before (I cut it out). A bit of hot glue made things sturdy prior to closing the connector's cap.Now this new wire would work perfectly with the original charger and allow high-current charging. Anyone having the original charger can stop here. But I have no such charger.To get rid of the need for the original Samsung charger, I googled and found the following scheme depicting the Samsung's way of signaling a 2Amps charger. I then replicated it with two resistors and a short and thick USB extension. The end result is shown in the second photo, inside the rectangular casing are the resistors and the cable ends. The result is much better than the original. In excess of 1000mA charging rate. And any USB charger will do.

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  • claudiopolis commented on claudiopolis's instructable LED Projector Lamp v.2.02 months ago
    LED Projector Lamp v.2.0

    Had I known that my instructable would get me CERN-level comments, I would have just posted pictures :-). Thank you for your insights. But we're all beating a dead horse. I gave up on this. I find Xenon bulbs a much better alternative. Not as good as the original, but it does make a projector usable.

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  • All in One Portable Solar Power Unit: 220V + 12V + 5V + Automatic Battery Charge! ;)

    I thought about doing myself one like that. I even sort of did, if you take a look in my instructables. But what I didn't liked about the all-in-one case solution is the fact that you have to keep it all in the sun. A lot. Have you tested it? I mean, sure, as a proof of concept it's great, but leave that case out for a full day in a hot sun. You won't be able to touch the solar panels. The case beneath them has no vents and it holds li-ion batteries. Take a look at the chart below. Beyond 40 degrees Celsius, accelerated battery aging sets in. Above 80 degrees you'll get a fire. Even with vents, it will still be too hot. BMS WILL cut down the charging rate, trying to compensate for the high temperature detected. So you'll get undercharged, hot batteries.Also, the black plastic case under...see more »I thought about doing myself one like that. I even sort of did, if you take a look in my instructables. But what I didn't liked about the all-in-one case solution is the fact that you have to keep it all in the sun. A lot. Have you tested it? I mean, sure, as a proof of concept it's great, but leave that case out for a full day in a hot sun. You won't be able to touch the solar panels. The case beneath them has no vents and it holds li-ion batteries. Take a look at the chart below. Beyond 40 degrees Celsius, accelerated battery aging sets in. Above 80 degrees you'll get a fire. Even with vents, it will still be too hot. BMS WILL cut down the charging rate, trying to compensate for the high temperature detected. So you'll get undercharged, hot batteries.Also, the black plastic case under the intense UV treatment will get brittle and crack. That's from experience. Things aren't better with aluminium boxes, either. As I said, until batteries evolve to cope with high temperatures, their place is nowhere near the solar panels. I can see something like that working in slightly negative temperature environments where the cold would keep things in normal ranges - but the UV argument remains even stronger.

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  • claudiopolis commented on Carl Jacobson's instructable Portable Amplifier6 months ago
     Portable Amplifier

    Nice job. But that's one unfortunate base shape. :-)

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