Ipod Touch Charger, 100% works

Step 3 Schematic & info.

Before you can begin to solder

-You have to cut the end of the adapter , so you have adapter and a good length of the cable available.

-Since we will solder the cable from the adapter to the USB  socket  terminals , you can adjust the lenght of the wires or  
remove the wires inside the usb socket. there should be enough space to add two resistor as specified.


The USB cabel have 4 leads/ connection pins which is D-, D+ , Gnd , VDD (+5V)


Connect it as i did , and you are on safe side :)

If you only have resistors of 100K please check the second attached picture.

Comments

[withmari]

it works great for my ipod touch

used a old samsung phone adapter 5V 700MA

cutting off end and soldring a usb-in on it.

[JLain32]

You don't need to add the resistors, just connect the D+ to the D- and It will work fine.  I have built several chargers using this method with no problems.

[Rayadillo]

i connect mine and they dont work :/ whats wrong?

[Gokhan]

hello Rayodillo Are you sure that you have connected the pins as it showen ? is that for your ipod touch? Something is wrong with the wires :)

[Rayadillo]

Yes I have. And yes it is. it cant be the only thing is that it im getting the power from a 6V solar cell 50mAh :/

[rkr]

You're right, it works.

[JLain32]

Glad I was able to help you out with a simpler drsign

[cbhargava]

What generation if your ipod touch? I tried on the 2nd gen Ipod Touch, it did not work for me. Anyone has any suggestions? Thanks.

[Gokhan]

maybe its littel late to answer you guys , but this is for the second generation of the ipod touch, i am not sure how the pin configuration is on the first gen.

[redsox14]

Same thing here..1st generation iPod touch does not work.

[neumanngregor]

Why in the world whud you put power on the data pins of the usb (marked as D+ and D-) ? Better stay away from them or you cud damage the ipod. Power flows on the +5 and gnd, no need for more ...

[Gokhan]

I have tried your methode, than the ipod touch won`t charge

[pablosartor]

i made an iphone 3g charger and yes you need the two middle pins. it tells the iphone/ipod touch that it is ok to charge

[Gokhan]

thanx to blackdragon for his explanation about the +d -d data and power :) nothing is easy at the first look but after a closer look you will se a simplier world front of you :)

[blakdragon19]

because apple, in all their glorious wisdom, decided that ipod touches, iphones, and new nanos should only charge if power comes from the data pins as well. as long as it stays within usb range, it should be okay

[neumanngregor]

wow, did not know that, apple worked kinda messy, i mean any china made mp3/mp4 player is folowing "the rules of usb pinout" or perhaps the ipod needs more power and drains from the data pin too ?

[blakdragon19]

no, its just that apple didn't want you charging your iphone from any old charger, just the ones they sanctioned. the way the ipod's system works, it only accepts a charge if the software senses a signal in the data pins as well.

[lukaj2003]

I was planning on making a universal USB solar charger and was wondering what would happen if I were to make it iPod compatible (Putting the resistors on the data pins). Would it have any adverse effects on normal (non-iPod) USB devices? Thanks.

[blakdragon19]

As far as I know, no. Most USB devices that you are charging probably fo connect to a computer, and utilize the data pins then, even if they don't during normal charging. In this case, it would just mean that said device would think it was hooked up to the computer, rather than just a plain old charger, and should still work fine. Other things that you may charge thru USB, like backup batteries and such, may not even have the data pins connected, and these would likewise be fine if you charged them with power at the data pins. If you are wary, or just not sure, get out your multimeter and test your device's standard charger.

[smashpoe]

Try out this design
http://www.instructables.com/id/MintyBoost!---Small-battery-powered-USB-charger/

[redxine]

If you're still afraid of pumping any voltage into the D pins, I got mine to work by simply wiring the D+ and D- pins together.  I suppose the wiring ends up crossing the two (power and D+/-) at some point, so this works. And it shouldn't have any effects on non-apple devices.

[max1zzz]

I didn't want to pump voltage down d+ and d- then i read this, it is a much simpler methord and it works (so now my portable 9v ipod charger cost £0)

[tjmortenson]

dude this rocks made one with a battery and a 5 volt regulator and used your schematic

[Gokhan]

Tjmortenson

Good to hear :)

[snelpiller]

Thanks man! this really helped, I had built a charger that used a 9v battery but it wouldnt charge the ipod when it was turned on. I hadnt used those 2 resistors from the D+ and D- and it turned out that was the problem, so thanks :)

[Gokhan]

i am glad to hear that it also works for you :)

[pancho del rancho]

does it matter how many volts the charger is

[binary_man_1010]

yup it has to be 5v DC 500mA - 1A