Simple 100 mA iPhone charger
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snilard
- Posts: 3
- Joined: Wed May 30, 2012 9:16 am
Simple 100 mA iPhone charger
I made super simple USB 100mA charger using linear 5V voltage regulator 78L05. It is powered by 7,4V Li-pol battery. But it doesn't work with my iPhone 1st gen. I found that I have to put some voltage on D+ and D- USB wires on minty boost site on ladyada.net. But what voltage shoult I use for 100 mA charging (or keeping alive)?
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adafruit_support_mike
- Posts: 67485
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Simple 100 mA iPhone charger
I don't recall the exact values, but I know the Adafruit team has reverse-engineered the Apple-sanctioned chargers to make the MintyBoost work. You might look in the build instructions there.
Please be positive and constructive with your questions and comments.