[valerun]

All - a number of you asked for updated PFC schematics. Happy to announce that it has been updated on our main PFC page at http://emotorwerks.com/cgi-bin/EMW_PFC.pl and also attached here below.

Note that we spec this now at up to 15kW. We offer this as kit, fully assembled standalone stage or as part of full PFC charger kit / unit.

[toledi]

Hey !

I just bought:
Full PCB set for a 10kW / 60A EMW open-source EV charger

Also I`m gathering the rest of the parts needed to complete this Charger.
Keep up the good work.
Will post pictures.

Greetings from Slovenia

[jackbauer]

The heatsink arrived

[valerun]

Originally Posted by jackbauer

The heatsink arrived

wow it does look pretty nice!

On our side, we are placing an order for 25 units of http://www.rell.com/Pages/Product-De...oductId=175029 (6"x5.5" 4-pass double-sided cold plate, 0.038 C/W at 1 GPM). Next version of the kit / charger will be mountable to this plate (or good old finned heatsink). We at EMW will also use the other side of the plate for our controller IGBT (one of those big square 1400A 1200V units).

Will post some pics once cold plates arrive.

V

[1-ev.com]

They have different sizes http://www.rell.com/Pages/Search-Res...Category=10190

My 2 c.
-Y.

[valerun]

Originally Posted by 1-ev.com

They have different sizes http://www.rell.com/Pages/Search-Res...Category=10190

My 2 c.
-Y.

right. the 180-20-12C is the next size up and 2x the heat removal capacity. A bit too big for our initial prototyping but maybe we will have to migrate there after testing (controller losses might be a bit high for this little device).

[swoozle]

For day-to-day use is the charger left connected to the battery pack? Or is there a need to have a contactor break connection when not actively charging?

[valerun]

Originally Posted by swoozle

For day-to-day use is the charger left connected to the battery pack? Or is there a need to have a contactor break connection when not actively charging?

should be ok to keep connected at all times.

[kovgab3]

Originally Posted by swoozle

For day-to-day use is the charger left connected to the battery pack? Or is there a need to have a contactor break connection when not actively charging?

Read this article:
http://www.auto88.cz/_info/Doc/GWL-P...OverCharge.pdf

They have sold a good amount of TS cells, and they have their own BMS (which has quite "luxury" functions, but is expensive also. http://ev-power.eu/?p=p_47&sName=rt-bms-3.2v It can balance at 10A(!))

I think, that if you follow their advices, and set up your charger keeping them in mind, then you can leave it on the pack.

[valerun]

schematics for the non-PFC charger has been updated, as well. http://www.emotorwerks.com/cgi-bin/V...l?cc=gfw7iuef7, as usual.

let us know if we are still missing something.

Those videos & photos ARE coming!

Thanks,
Valery.