BMW i3 LIM voltage measuring board

Buy and sell
Post Reply
muehlpower
Posts: 295
Joined: Fri Oct 11, 2019 10:51 am
Location: Germany Fürstenfeldbruck

BMW i3 LIM voltage measuring board

Post by muehlpower »

I am selling boards that are required to operate a BMW LIM for DC charging. It measures the voltage at the charge port and provides it to the LIM. 5V are required for operation. e.g. from the Arduino or another controller for the AC charger. The measuring voltage is isolated up to 2000V! On the HV side, a cable with eyelets can be soldered, which are screwed to the contactors, on the LV side soldered cables or a Molex connector can be used. The board is then inserted into the supplied shrink tub. Dimensions 14mm x 64mm

€70.- privat or €83.30 with VAT and invoice / 1 board
20220620_201320.jpg
Plan.png
Plan.png (5.54 KiB) Viewed 148 times
User avatar
celeron55
Posts: 537
Joined: Thu Jul 04, 2019 3:04 pm
Location: Finland
Contact:

Re: BMW i3 LIM voltage measuring board

Post by celeron55 »

I'm thinking what are the other use cases for this board. What's the signal like?
muehlpower
Posts: 295
Joined: Fri Oct 11, 2019 10:51 am
Location: Germany Fürstenfeldbruck

Re: BMW i3 LIM voltage measuring board

Post by muehlpower »

Based on the isolated amplifier AMC3302DWE from Texas Instruments, it outputs an low impedance analog voltage between 1.42V and 4.8V corresponding to the input voltage of 0V-500V. Isolation is over 2000V, power supply is only required on the low voltage side.
User avatar
asavage
Posts: 29
Joined: Sat May 14, 2022 10:57 pm
Location: Oak Harbor, Washington, USA
Contact:

Re: BMW i3 LIM voltage measuring board

Post by asavage »

What forms of payment can you accept?
Al Savage
2014 RAV4 EV
https://nissandiesel.dyndns.org/
User avatar
asavage
Posts: 29
Joined: Sat May 14, 2022 10:57 pm
Location: Oak Harbor, Washington, USA
Contact:

Re: BMW i3 LIM voltage measuring board

Post by asavage »

celeron55 wrote: Wed Jun 22, 2022 9:33 am I'm thinking what are the other use cases for this board. What's the signal like?

From another thread:

muehlpower wrote: Tue Jun 01, 2021 1:01 pm i changed my circuit a little and now it's fine. The circuit is required to measure the voltage at the charging connector and to pass it on to the LIM
Image
Al Savage
2014 RAV4 EV
https://nissandiesel.dyndns.org/
muehlpower
Posts: 295
Joined: Fri Oct 11, 2019 10:51 am
Location: Germany Fürstenfeldbruck

Re: BMW i3 LIM voltage measuring board

Post by muehlpower »

asavage wrote: Wed Jun 22, 2022 3:25 pm What forms of payment can you accept?
paypal
User avatar
asavage
Posts: 29
Joined: Sat May 14, 2022 10:57 pm
Location: Oak Harbor, Washington, USA
Contact:

Re: BMW i3 LIM voltage measuring board

Post by asavage »

PM sent.
Al Savage
2014 RAV4 EV
https://nissandiesel.dyndns.org/
Post Reply