miscrms
Well-known member
Ok, this probably sounds a bit wacky, but anyone have any thoughts on the feasibility? It's perhaps not totally crazy, as most modern switching power supplies convert AC to DC, then generate AC at a much higher frequency, then convert that AC back to DC at the desired output voltage. Basically an AC to DC converter and DC to DC converter back to back. Consequently, many such power supplies (and some chargers) can be fed directly with DC voltage, which basically just passes straight through the rectifier and work just fine. Often even with improved efficiency due to dropping the AC to DC conversion losses. Many can even accept a pretty wide range of DC voltages as they are designed to be 120V /240V compatible without requiring manual switch like old school supplies.
I believe the Leaf OBC operates on the same principle, and might be perfectly happy if fed DC in the right voltage range. The complete unknown for me is what parts of the charger / EVSE initiation process might get hung up if the EVSE was just fed DC?
Any thoughts much appreciated! This is mostly intellectual curiosity at the moment, but could have some interesting possibilities. For example if I were to take a Leaf out to a track day and needed a way to recharge between runs, it's occurred to me that my Prius can easily put out 3kW of 220V DC....
I believe the Leaf OBC operates on the same principle, and might be perfectly happy if fed DC in the right voltage range. The complete unknown for me is what parts of the charger / EVSE initiation process might get hung up if the EVSE was just fed DC?
Any thoughts much appreciated! This is mostly intellectual curiosity at the moment, but could have some interesting possibilities. For example if I were to take a Leaf out to a track day and needed a way to recharge between runs, it's occurred to me that my Prius can easily put out 3kW of 220V DC....