Build a charger for your iPod or MP3 player

Circuit-Zone.com - Electronic Projects

Posted on Wednesday, April 9, 2008 • Category: iPOD Hacks

Using the USB port on your computer to charge your player’s batteries is not always practical. What if you do not have a computer available at the time or if you do not want to power up a computer just for charging? Or what if you are travelling? Chargers for iPODs and MP3 players are available but they are expensive and you need separate models for charging at home and in the car. SILICON CHIP’s new charger can be used virtually anywhere. While we call the unit a charger, it really is nothing more than a 5V supply that has a USB outlet. The actual charging circuit is incorporated within the iPOD or MP3 player itself, which only requires a 5V supply. As well as charging, this supply can run USB-powered accessories such as reading lights, fans and chargers, particularly for mobile phones.

Build a charger for your iPod or MP3 player

iPhone / iPod Touch DIY Microphone

Build a charger for your iPod or MP3 player

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]