Lithium Polymer Battery USB Charger
Finally I’ve finished this project. It’s a USB Charger for Lithium Polymer Battery, that’s very compact and high powerful batteries that I use in most of my projects.
A tiny and elegant charger...
All sides...
In my recent GUI Bot project I’ve used the famous MAX1555, a greatest IC in a tiny SOT23 package. One thing about MAX1555 that I don’t like is the current limitation it has (about 100mA). I know it’s for USB low speed compatibility, but who knows someone that don’t have a high speed USB host surround? Because that I use the greatest MAX1811. It’s a great IC too, but can deliver up to 500mA! See one of my first post to check more details.
That’s the finished work:
Working!
If anyone like this circuit, email to lubiana@gmail.com.
The max1555 is only limited to 100ma when dc is to pin 1 … if you use pin 4 as the input then it will be 300ma
Dave P
July 20, 2010 at 20:07