Researching for a new product in the concept phase. Here's the bullet points:
- Battery charging of different Lithium based batteries.
- Power for the system can come from
- DC input up to 22V
- Solar Panel (specs TBD)
- In the absence of either charging source the system will run from battery
- System runs at ~3VDC and max 300mA draw
I think the high DC voltage input limits my choices severely so that could get a switcher to bring down the voltage but I'm hoping to get lucky and find something that can handle the higher voltage. The solar panel will be somewhat small (maybe no more than 2" x 3").
Suggestions and thoughts on this are greatly appreciated.
Thanks,
George