***snip***
Over the past months I have been gathering IC's like a hamster contributing to the chip shortage, I gathered about 20 units worth of chips. The following items have been selected in order to cover the above desires. I only mention the noteworthy ones:
one
BTS710404ESAXUMA1 To drive ...

dougyip wrote: ↑Sun Jan 29, 2023 7:03 pm Communication is via CANbus. I've attached a datasheet and the CAN protocol. We regularly run these modules at the full 30kW for a full hour with no temperature issues at all.

Waiting for the NXR100040 to arrive now.

Anything north of 3kW single phase and 10kW 3-phase AC. Edit: 16A @ 230/380VAC is a good starting point.

Swing wrote: ↑Wed Feb 08, 2023 2:41 pm What do you mean by that? Are you going to do some testing on this VW generator?

Anyway, boekel can help you with boat batteries for sure!

No need for batteries, looking for the generator.

Silly me, you can also get motor inductors that will work perfectly between the inverter and your iron core transformer:

image.png

These are specifically designed for Variable Speed Drives, ie waveforms exactly like those out of our inverters :)


I am looking to build a DIY DC to 3-phase AC ...

These things would be sooo nice for a hybrid boat setup, or as a motor in a small boat.

I don't have any skills to help develop this, but if I can help in any way... maybe provide hardware / a battery, etc.

I'm located in the Neterlands.


Hi boekel, I might want to take you up on this offer ...

PM send

I might be interested in all but the battery. Or just the teensy

With cells in series, the first cell to make contact with a conductive casing is bad, the second cell to make contact to the same conductive casing or to the first cell is a catastrofic disaster, don't do it. But I think you knew that already. What you have there is a systemrequirement, cell to cell ...

The last one looks too good for the price. Is this really a offer for a 60kWh lifepo4 48V battery combined with 50kW chademo charger for 1430$ and lowest order-quantity of 2?

All but the lowest performance ones look too good to be true. You always need to contact the seller. Happens a lot that ...

I'm interested, already using re-use kona modules to build affordable electric propulsion kits for small boats. Would be great to investigate the possibilities of re-using (some of) the bms components too.

Well done! Did you manage to stay within the red arrow budget?

Any estimates what shipping to NL would add to the cost?

We can try to trade for six LEV40-8 modules with 27 to 28Ah of juice left in them, about 5kWh. Currently in use as 4P12S 48V boating battery but easy to revert back to 1P8S modules. Pick up in Amsterdam, trade for openinverter, simpbms (teensy3.2) electronics, other interesting things to add to my ...

That is one impressive beast. I was looking into Huawai R100030G1 as well, pretty much the same specifications but hard to get the protocol information on. Looking back, are you satisfied with the after sales if you ever needed any at all? Would you put any additional value on a known brand such as ...

I have 7 isolated CAN buses, one for each FP to control them. One of the FP are doing the current limitation and the others just tags along and supplies a specific voltage.
EDIT: No issues with the FP fighting each other. I do keep them within there voltage operating window at all times.

This ...

The supplier we used was: Shenzhen Kaiyuan New Energy Technology Co.,Ltd. 40kW modules are also available now.
https://www.alibaba.com/product-detail/UR100030-SW-Free-shipping-High-quality_62200728409.html?spm=a2700.galleryofferlist.0.0.145b1085HwedDK


Thanks dougyip, those are very interesting ...

Another option is to use 9pcs of Eltek FlatPack HE2 48V 3000W power supplies connected in series. That will give you 400-518V output voltage and 27kW capabillity or 62A. I run 7pcs for my 96S pack.

The funny part is that I am already building a charger with 9 R4850G2's in series, at 58,5V 3kW ...

m.art.y wrote: ↑Fri Jan 27, 2023 7:52 pm This combo was sold but I have another Outlander charger also other chargers are available Tesla, VW etc.

Looking for a 126S pack charger solution, see also my ad. Outlander won't do over 400V it seems, so focussing on Prius inverter for now.

Is this still for sale?

----you'll need to monitor pack voltage, current and probably temperature too. A reasonable charging curve would be constant current up to your target 'fully charged' voltage, then constant voltage there and allow the current to decay to some small value. ---


At first I'll probably get away ...

I have tested using the Prius Gen3 as a charger with celeron55:s SW and it works but it is loud and most likely creates a lot of interference on the power grid. I did some changes to the SW but I could never get the current to be stable enough for my liking.


Thanks, missed that thread amongst ...

What about doing an 'openinverter special' project:
- a prius inverter
- a openinverter logic board
- a thirteen a dozen radiator, fan and pump
- multifunction inputs: 3-phase AC, HV DC, CCS, Chademo, V2G etc
- multifunction outputs: 3-phase AC, HV DC, CCS, Chademo, V2G etc
All in one garage style ...

I am planning to buy/build a High Voltage (>=530V) 30kW CC CV 3-phase AC to DC charger. A response on my add in classified suggested to use a OEM Prius inverter with an openinverter control board for that. Adding ChaDeMo / V2G functionality would be a big plus. Has this been done by anybody, as a ...

Prius inverter boost converter + 3-phase rectifier? Plus some micro to control the boost converter PWM.


Thanks that is a good suggestion. I read up on the Prius inverter developments as much as I could but didn't find any examples of actual charger implementations. Could you point me to any ...