Comments on: Switch mode iPod charger http://hackaday.com/2006/04/27/switch-mode-ipod-charger/ Fresh hacks every day Fri, 10 Feb 2012 14:58:21 +0000 hourly 1 http://wordpress.com/ By: Taylor http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18929 Sun, 11 Mar 2007 05:51:05 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18929 twist the white and green together then to the negative.

]]> By: ipod5g http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18928 Sun, 04 Mar 2007 11:20:50 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18928 I bought this mini ipod charger it runs of 1 AA battery and it has 2 parts, the charger itself it looks like a short stubby marker and it has a mini mono headphone type jack on it 1/32 inch i think it is and the other part has the ipod sync plug and a mono headphone plug 1/32 inch it says turbo charge on the bottom and it has a blue light that lights up and gets brighter whan you hool ur ipod to it, oh and the packaging says MADE FOR IPOD on it, on another note i have a 12 volt car jumpstart box and i use my griffin powerjolt cigarette lighter plug and i can charge and run my ipod off that just like its plugged into 110v wall power

]]> By: dyer http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18897 Tue, 06 Jun 2006 06:03:33 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18897 I just want to know which pins on the IPOD connector (IPOD end of sync cord) are used for charging, i.e. which pins have power running through them?

]]> By: dyer http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18898 Tue, 06 Jun 2006 06:01:53 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18898 I just want to know which pins on the IPOD connector (IPOD end of sync cord) are used for charging, i.e. which pins have power running through them?

]]> By: Thom http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18899 Fri, 02 Jun 2006 03:59:15 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18899 I have about ten litium-ion batteries from a bunch of recent Nokia cell phones my company has thrown out (new phones came with the renewal contract). I’ve been thinking about finding a way to use some since the batteries are so thin – they’re like little stackable cookies LOL. I think they are 3.6 v and they hold a charge for quite a while sitting on the shelf (in the gadget bag et cetera.) Perfect rechargable solution – now if I had a clue about circuits and electronics :-)

]]> By: arthur http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18900 Tue, 23 May 2006 03:08:08 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18900 i cant find a 5v regulater so i pulled one out from a pc power suplly, but when i plug it up with a 9v battery i get 5.4v.

will 5.4v kill my ipod nano?
if so how can i put the v down?
mabey a weaker battery? (ex.3-4 aa/aaa batterys)

]]> By: avelchu http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18901 Tue, 02 May 2006 20:43:02 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18901 Easiest solution I found was to buy a RadioShack racecar recharger and battery pack for approximately $25. Add a homebrew connector from battery pack to USB and/or Firewire. I’ve been using this combo for several months now and I love it. I bought the 9V battery pack because I have a Gen 3 that takes 8-30V input but it works with newer models that take 5-30V input. No voltage regulator is needed. Even cheaper stillm, I also bought a 8 battery pack from RadioShack for only $2 or so and put my existing 1.2 to 1.9 batteries in it. I use this battery pack with my selection of NiMh batteries and the race car charger to charge 8 batteries at the same time to be used for any other purpose they are good for.

]]> By: Samooses http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18902 Mon, 01 May 2006 03:32:22 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18902 heres the pin out on a IPOD wall battery charger, from apple. this is what I got with my multimeter
___________________
| |___| |___| |___| |___| |
|__1____2___3___4__|
1) 5.12
2) 2.75
3) 2.15
4) 0

anyone think they can design a circut taht woule mimick that?

]]> By: Ben http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18903 Sun, 30 Apr 2006 01:54:01 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18903 http://img.photobucket.com/albums/v234/Ben_baker/schema.gif

will get you about 3 volts and 5 volts.

Of course, it depends on the current draw of your device and what the pins in your charger actually do. This schematic could very easily explode your pcket DJ.

]]> By: john http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18904 Sat, 29 Apr 2006 20:15:21 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18904 i dont know how to hook um a LM317T.

for my pocket dj, it charges via wall charger, and in the wire, long story, is a 3 and 5v line. and a gourund. a normal usb provides 5v. i want to hook the wall charger mini usb to the comp, but i cant i have to be getting 3v into that other line.

]]> By: Ben http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18906 Sat, 29 Apr 2006 05:54:48 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18906 Resistors limit current, not voltage. You could use a voltage divider if the appearant resistance of the voltage inputs of your device is constant.

Radioshack’s 7805 only needs about a volt more than 5 to output a regulated 5 volts. It’s high current too, up to 1A. $1.59

Radioshack also sells the LM317T, which is adjustable with two resistors from 1.2 to 37 volts DC, currently $2.29

Can you tell I just got home from work?

]]> By: john http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18905 Sat, 29 Apr 2006 04:10:45 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18905 #12 he he, radioshack doesnt have 3.3 v regultors or do they?

no offense, give me a link to a radioshack regulator or resistor.

]]> By: Arochone http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18907 Sat, 29 Apr 2006 02:17:13 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18907 Or…you could just take a 9V battery, sandwich a slip of paper between the leads, and shove it inside the firewire plug. I did it as a test…and it works. I’m using it right now actually.

]]> By: ... http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18909 Fri, 28 Apr 2006 17:27:10 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18909 sorry man, the higher the frequiency (until you saturate the core) the more power you will get out of a given amount of inductance. Have you looked at any of the complete boost converters? You can get 10w from a 1uh inductor running at .5hmz easy. Some chips can get ~90% eficiency putting out 20w from from 1uh(600khz)

]]> By: kwijibo http://hackaday.com/2006/04/27/switch-mode-ipod-charger/comment-page-1/#comment-18908 Fri, 28 Apr 2006 16:53:09 +0000 http://hackaday.iheartcashews.com:8181/2006/04/27/switch-mode-ipod-charger/#comment-18908 the 5g ipod is not highspeed only, it will charge and transfer data through a usb 1.1 port, so any charger should work

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