Recent content by brainzel

C2 was and is still 0.1uF, so I must change nothing at all (i think). I can't locate R3 ... there are only the resistor values printed on the boards, and "10K" is there several times :-) . Is there a plan where I can get the names of your parts-list? Or an image with a big arrow spotting the...

Only for my personal understanding: everything is fixed and I can go on and solder my board to the end, even change the R3 resistor? Please tell my that it's so simple and everything works fine! :-) (I can't await to get everything together and charge the first time! :-) )

OK thank you, Fechter. I will order 0.01uf capacitors and 4,7k Ohm resistors and take a full 24 and a 14 channel board.

First a great thank to all and especially to Fechter and Gary for supporting! I have too questions: 1) I have 38 cells and two 2.6 boards; should I solder 19 channels on each board, or should I rather solder one complete board (24) and the rest (14) channels on the other board? (I changeed the...

Oh :shock: I began to solder the 2.6 boards yesterday. Should I rather wait untill you matched and fixed the problem?

OK. I surely will ask you some questions, when I got all the components and solder all together. Right at the moment, I lost a little overview :? but if I smell the first solder-smoke, I take a closer look. thanks so far

Hi, I ordered 2 boards and the components for my 38x3,2V (LiFePo4)cell-battery-pack and got some pretty good tipps from Gary about the higher voltage useage. So I replaced the 6.8 ohm/5W shunt resistor with a 3.9 ohm/5W version in my order-list and will use a hetsink and/or fan. That sounds...

I close this thread because this discussion is moved into another one: http://endless-sphere.com/forums/viewtopic.php?f=14&t=11069

The charger is directly ordered at the german distribution of Zivan and is programmed just at the moment. The decision to run with ~120V and not ~144V was a matter of costs and a limit of components (controller,motor) which I got very, very cheap. The batteries are on their way (I hope they are...

Many thanks, Gary! I ordered 38 cells, so this is my limitation of voltage. If they "only" have 3V like in your calculation, it would be 114V at all. That's ok I hope. My circuitry understanding is a little bit rusty, but I still can handle my soldering iron :wink: Most suitable is a list of...

?? Sorry, I don't want to anger someone. I decided to make my order in germany, because of several problems like, currency, shippingcosts, taxes, customs duty ... My other thread belongs to a completely other topic (BMS/LVC/HVC). That's the next step after choosing my charger. Please don't be...

The tecnical informations to this cells are talking about a max charge voltage of 3,6V. http://www.evcomponents.com/ProductDetails.asp?ProductCode=SE120AHA Operation Voltage: Charge(CC-CV): 3.6V Charge(Float): 3.4V Discharge: 2.0V I wrote with some guys in another EV-forum and the generically...

I decided to buy a Zivan NG3. Thanks to all.

hi, I have read several threads but didn't get my personal answers, so I decided to make a ew topic. And here it is :D I hope you will understand my lousy english and certainly my problem :wink: I need some electric components for my electric vehicle project (a VW New Beetle). The most...

I'm not defined on 120V, but there is a time at conversion, where you have to make a decision. I took 120V because of the next logical step up from 96V. Most of the examined conversions are at 96V, 120V, 144V. 96V would result in a higher current, 144V was to expensive (LiFePo4 cells), so the...