ok guys here's a quick (but important) update on the isolated charger.
We have just placed an order for the first batch of power and control PCBs for our isolation stage.
First 3 units of this high-power isolation stage will be available for ordering week of November 25th!
Quick specs:
* Input: 120-400VDC
* Output power: 12kW
* Efficiency: 94% at max power
* Cooling: Air
* Output voltage: up to 480VDC. Fixed nominal transfer ratio of 1:1.2 (input
utput). Actual transfer ratio depends on the load and can go down to 1:1 at rated load.
* Control: by a simple on/off TTL signal you provide. Fine output voltage control to be provided by the DC source you use to feed the isolation stage. One of our 12kW non-isolated chargers is a good option.
* Measurements: input & output currents and output voltage measurements are available as fully opto isolated analog signals. You will need to incorporate these into the control logic for your DC source in order to implement the charge protocols of your choice
* Internal protections implemented inside the unit so it's not as easy to blow up (thermal, overcurrent and overvoltage).
* Size: 10x10x8" machined enclosure, not environmentally protected
* Weight: ~20lbs
Initially, these will NOT be available as kits, only fully assembled boxes.
Exact pricing still TBD based on final part sourcing but will likely be right under $2,000 for the fully assembled and tested isolation stage.
Needless to say, these are what I would call 'early adopter' units but I think this is what you guys are, right? ;-) As mentioned above, you will have to connect the output voltage & current signals to your control stages yourself.
A couple of weeks later, we will release a firmware update to our non-isolated 12kW chargers that will make those control connections for you.
So, do we have the first 3 takers?
Let us know.
Thanks,
Valery.