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Table of Contents
Wave Bubble 2010
Major contributions to the design of this version go to Mictronics and TheFallen.
This wiki has been created to collect all errata regarding new parts, schematics, etc.
Wave Bubble 2010 - Design by Mictronics
USB and Battery Charger board
Here is a short descrition of the USB and Battery Charger board for my Wave Bubble 2010.
Due to hardly available parts on Digikey the battery charging circuit was modified and uses now an LTC1730-4.2 LiPo charger IC. The LTC1730-4.2 handles charging of a single LiPo cell and includes overcurrent and overtemperature protection for the battery. The board connects through a mini-USB connector either to a PC for data transfer or to a wall adapter for charging. Charging current depends on the external power supply but overcurrent protection is set to 2A. A green LED will indicate charging status.
USB data transfer is handled by a simple USB-RS232 converter, the FT232L.
Board size is 77mmx52mmx7mm without battery.
Top layer:
Bottom layer:
Download Design Files
Schematic: To be uploaded
PCB Layout: To be uploaded
Bill of Material: To be uploaded
Target Viewer - Required to open the PCB layout files: http://www.target-3001.de/target/v14/deutsch/tarv14viewer_d.exe
Miscellaneous
Quote from http://forums.adafruit.com/viewtopic.php?f=16&t=14782#p72524
"I changed a couple of things so far:
- using a ROS-1300 and ROS-2700-1819 to cover the whole range from 400MHz up to 2700MHz - the voltage for the VCO is selectable by jumper, either 5V or 12V to keep compatibility to the original VCOs ROS-1200 & ROS-2500 - using a GALI-84 or SGA-6589Z - input voltage for the TPS79333 is selectable by jumper, either Vbatt or 5V - using the low batt voltage detection - there will be no internal board antennas since I have real doubts that they are that efficient"
More edits to come.
