Check the antminers for their input requirements. If they take 12VDC +/- 2 VDC, then scrap the DC>AC>DC arrangement and hook them straight up to a battery. I do this with my Jally.
Solar panel (200W) + wind turbine (200W) > hybrid combiner/controller > batt (nominal 12VDC) > Jally + R-box
Input the same as above > batt (nominal 12VDC) > UPS (400W) > Laptop (signals startup & shut down based on battery condition)
Yes Cranky4u. That's what I was thinking too, but adding a 12v output from a computer power supply. You would connect the computer power and the power from the battery charge controller up to the dpdt relay and it would switch between the pc power supply and solar power depending on if the solar is available or not.
Thanks to all.
1. What kind of a Replay you advice here?
2. If the power from solar is low during low Sun will this replay switches to PSU?
3. Also what kind of a cable you are using to connect your devices to battery. Normally inverters use cables of very higher guage to connect to battery, so do I need to use such a kind of cable?
It will be more better if you can add an image of what you have done or others done such things.
1. I assume by replay you mean relay, and you would need a 12v dpdt relay, with whatever amperage you need, which is wattage/voltage. So for a antminer you would need something like http://www.ebay.com/itm/2pcs-JQX-30F-2Z-DC-12V-Coil-30A-250V-AC-Power-Relay-8-Pin-DPDT-/300715926685?pt=LH_DefaultDomain_0&hash=item460410e49d
2. If the power is low, first the battery will drain off, and when that turns off, then the relay will switch to the PSU's 12v power supply.
3. Definitely use a higher gauge wire between battery and the charge controller. 12v has high amperage. You can solder connectors up to the wire and screw into the battery terminals.
Will definitely make a guide if I ever get time to finish this project