lalaland wrote:I have been thinking to add a 'spark' reducing battery connection circuit. (A soft start of sorts) Ive come up with this.. any comments.
Operation: The keyswitch supplies power to controller through 400 ohm resistor to precharge the controller capacitors. Also voltage from keyswitch is supplied to time delay contactor coil K1. After 2 secs contactor coil closes contact K1-1, effectively bypassing pre-charge circuit. Contactor is held on thru keyswitch. When keyswitch is turned off, contactor drops out and power is removed. Diode in series with the 400 ohm resistor prevents power supplied thru the contacter contacts or stored charge in controller from holding the time delay contactor on.
Jazzjerry wrote:I entered this question in another board, I think this is where it should go.
I have a cycle analyst and would like to use its th pad connected to my throttle signal to use it for economy sttings and current draw settings etc.
I also have the legal isue of speed in the Netherlands. So I would like to use a Preset Potentiometer that will reduce my speed with a preset speed of lets say the legal 25kph.
So this is switch 1 mounted on the cycle analyst. = Switch for a quick legal fix!
The other switch would be used to drive on an economical way using the limmiting function of the cycle analyst not just for speed limmiting but for current limmiting.
So both switches off = Full speed no limmiting
Just Switch 1 on Cycle analyst will follow my preset current limmiting
Just switch 2 on The potentiometer makes my speed go down to the preset.
Both switches on Both systems do their work.
My main questions are.....
1-Would this work?
2-Do I need another Diode after the preset potentiometer switch?
Hope someone knows more about it.
02jze wrote:I looked through a few pages and started to get a sore head. If you know its here ill keep looking other wise i wanna see a drawing of the best way to set up a switch from 48v to 24v or 36 but i think thats pushing it. Is it possible to split this ?
im using 4x 12v 12ah sla's
02jze wrote:That pic makes no sense to me lol. I was thinking of having it 36v but power boost to 48v handy from just a switch
or 24v in place of 36v or all 3 i dunno.
your pics are too tech for me. This is advanced as my wiring diagrams go . lol..
02jze wrote:Just to have different power for different days. like when i ride to the pub have 48v but when i ride home use 24v hahaha
amberwolf wrote:That's going to have more to do with what space you have to put them in than anything else--you'll need to figure out what shape and size you have to work with, then figure out how the batteries will best layout within that space, before you can figure out how to connect them.
The Mighty Volt wrote:I am planning on fitting 100 A123 into an augmented space within the frame of my MTB, the triangular piece where the cross bar, diagonal and upright meet.
I dont know whether to go for a "perfect fit" triangle or whether to make up 8 cell packs with balance tabs and charge them with a Turnigy Accucell. Even if I knew that, I still would not be sure of how to connect the packs to come out with the 72v 11 Ah which 100 A123 M1 cells should provide.
[/quote]I will probably need pictures to better inform people, so I will take care of that tomorrow.
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