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Forum Index : Electronics : ASUS Eee Car Charger 12V - 9.5V
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vasi Guru  Joined: 23/03/2007 Location: RomaniaPosts: 1697 |
Here, at this address, is the schematic for the charger for Asus EeePC 701 at 9.5V. The site is abandoned, and may disappear some day. 
This allows the owner of an Asus EeePC 701 to connect it to a Windmill/Solar 12V system. I redesigned the PCB for a larger cooler and for screw connectors as I don't need a compact size for travels. The PC will stay home, off-grid. 
BOM: 2x 10k resistor (R1 & R4) 2x 22k resistor (R2 & R3) 1x 1.5k resistor (R5) 1x 120μF 25v electrolytic capacitor (C1) 1x 2200μF 16v electrolytic capacitor (C2) 1x 1N5822 Schottky diode (or equivalent) 1x 9.1v 0.5W Zener diode 1x BC337 NPN transistor 1x LM2576T-ADJ IC 1x 100uH, 3A inductor (e.g. Pulse PE92108KNL) 25°C/W or better minature heatsink (e.g. Thermalloy 6073) Cigarette lighter plug with 3A fuse and 2.1mm DC plug (e.g. DSE P1692) 2.1mm DC chassis mount socket 1.7mm x 4.75mm (ID x OD) DC plug and cable Small plastic enclosure Hobbit name: Togo Toadfoot of Frogmorton Elvish name: Mablung Miriel Beyound Arduino Lang |
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| karmacoma Newbie  Joined: 25/08/2015 Location: AustraliaPosts: 17 |
I just got an Eee 701SD running under xubuntu 14.04, and it is working well. The 9.5V input makes it ideal for running on 12V solar. I'll be using mine in the tropics, so I think your modification here of the original Marlborough Wifi power supply is better, because of the large heatsink on the voltage regulator. It looks like you made pcb artwork for your new board. Do you still have that, and would you be willing to share it? It would be a big help. By the way, although the original marlwifi.org.nz website has gone, the Eee power supply project is preserved on the Wayback Machine). |
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