Multi channel battery charger: Difference between revisions
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* Forth/C combination. |
* Forth/C combination. |
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== Function == |
== Function == |
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* [[Image:DS2756.pdf|DS2756]] DS2756 |
* [[Image:DS2756.pdf|DS2756]] DS2756 |
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[[Category:Hardware]] |
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[[Category:Peripherals]] |
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[[Category:Battery & Power]] |
[[Category:Battery & Power]] |
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Latest revision as of 08:49, 14 March 2011
This page is monitored by the OLPC team.
This page describes a charger for multiple XO Laptop batteries.
Introduction
Code name "Supercharger"
Input Power
- AC Power 100V-230V. 300W
- DC 10V-28V. 150W
Exterior Connections
- AC In: IEC for 120/220VAC
- DC In: 10VDC to 28VDC 2 Pin connector that mates with whats on the GP solar blanket.
- DC connector is not yet finalized
- USB B connector (Its a USB device)
- 2 cables with XO DC jacks on them
Electrical Misc
- The CPU is an Atmel At91SAM7x family part.
- The per battery DC-DC charger is a SEPIC design based around a MicroChip MCP1631 part
Software
- Forth/C combination.
- http://dev.laptop.org/git/projects/supercharger
Function
- Approximately 2 hours for complete charge
- Maximum number of simultaneous charging channels
- 15 Batteries on AC
- 10 Batteries via 150W DC source
- 8 Batteries via 2 60W solar blankets
- 4 Batteries via 1 60W blanket
- Maximum number of simultaneous charging channels
Datasheets
- File:At91sam7x128 256 pc.pdf Atmel CPU
- File:DS2756.pdf DS2756