Upload Your Circuit Schematics & Requests Here...

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Erikjan
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Re: Upload Your Circuit Schematics & Requests Here...

Post by Erikjan » Sep 05, 2011 5:24 pm

This is fun i have do some test for praktice, and make some simpel test programs.
And it works. Tomorrow i go write the real program.

I think i can use the program example you linked to.
The only thing i need to do for my "blackbox" is write a program that output 5V when rpm is >1 and 0V When rpm is <1.

Maybe it is better to connect the throttle and controller to the uC also, and write a bigger progam then i don't need a relais.

Thanks

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adrian_sm
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Re: Upload Your Circuit Schematics & Requests Here...

Post by adrian_sm » Sep 05, 2011 5:37 pm

Probably best to start you own thread on this, as this is getting off topic now.

But I agree I would attach the throttle and controller and let the arduino decid on the correct throttle out signal to create.

- Adrian
Build #1 ~28kg ~ 700w Avanti Hardtail Crystalyte 408, 48V10Ah Headway. ~5500 kms to date. (retired)
Build #2 ~30kg ~2000w Giant AC Dually Crystalyte 408, 48V10Ah Headway + 6s10Ah LiPo = 70V. ~15000 kms to date [SOLD]
Build #3 ~13kg ~2000w Commuter Booster <1kg Friction Drive in Beta testing (www.commuterbooster.com)
Build #??? ~21kg ~1500w Adrian's Bafang BPM Hardtail MTB Bafang BPM code12, 15s LiPo, ~40kph, ~30kms

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Re: Upload Your Circuit Schematics & Requests Here...

Post by Erikjan » Sep 08, 2011 6:21 am


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Re: Upload Your Circuit Schematics & Requests Here...

Post by vin791 » Oct 22, 2011 8:00 pm

https://endless-sphere.com/forums/viewto ... =2&t=33064

thats a thread i created for my issue. i thought posting here would be a good idea as well.

i got some 10k audio taper pots so its more of a ramp up control instead of a linear control. either way, i couldnt find small Ohm trim pots at radio shack and i realize i can put larger resistance pots on there and just dial them back but if i want a potential 0-100% limit could i just put the one 10k pot in there? also, i saw something about opening the controller and just adding a pot in parallel with the resistor thats already in there so adjust for more resistance. if i just did that i wouldnt need anything else in there right? i will be using 2 controllers spliced to one throttle with diode limiters and im thinking i can have a box w/ 2 knobs and 2 leds (for standby) one for front motor, one for rear motor. so in theory i could set say the front motor so be barely receiving any power and the rear motor to receiving full power if i like (even though i'd probably just have them relatively the same) and if the pot is turned off (theres a built in switch) it would just default to the stock resistance because the other resistor will still be in-tact. would this work?

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Re: Upload Your Circuit Schematics & Requests Here...

Post by hillzofvalp » Oct 25, 2011 5:29 pm

I'd like a circuit that will let arduino change the resistance amongst 4 power supplies in order to change the voltage. I'd like to increase each by equal amounts.. I was thinking a digital pot, but there seems to be an issue with my board in that it has SPI taken from wifi.. so I need a switchable spi to the digital resistors... Maybe there is an easier way

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Re: Upload Your Circuit Schematics & Requests Here...

Post by amberwolf » Oct 26, 2011 2:57 am

Check Maxim's digipot section for a Voltage Controlled Potentiometer app note.

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Re: Upload Your Circuit Schematics & Requests Here...

Post by migueralliart » Feb 01, 2012 7:40 am

Can someone help with a schematic of a mosfet being used as a switch between the battery pack and the controller with a single switch. 36V and 72V if possible? it has to withstand 1500watt and 30 amps at 72V with the minimum voltage drop possible.

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Re: Upload Your Circuit Schematics & Requests Here...

Post by amberwolf » Feb 01, 2012 9:38 pm

Look up using a MOSFET as an "ideal diode". That's probably how you could most easily use one.

Otherwise, any basic MOSFET switching circuit will work; you just need a FET rated for the voltage of the whole pack, when totally fully charged, and/or the highest regen voltage your controller could possibly put out--whichever is greater.

As for the system wattage, it doesn't have anything to do with what the FET has to deal with. You just need to know the current you will pull thru it, and multiply that times the FETs' RDSon at the gate voltage you will be driving it with, to get the actual wattage the FET will have to dissipate, and thus how much of a heatsink (if any) you will ahve ot have on it.

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Re: Upload Your Circuit Schematics & Requests Here...

Post by hillzofvalp » Feb 02, 2012 12:28 am

I'm looking for some traction control code for a RWD gokart with dual, independently driven motors. The idea would be to improve handling in corners... track GP karts tend to hop around a lot on corners.. varying the rear wheel speeds might actually act as steering when there is low front traction.

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Re: Upload Your Circuit Schematics & Requests Here...

Post by A_Boring_Username » May 15, 2012 2:25 am

Hi everyone

First post on the forums woohoo...

anyway, I recently got myself an ASEAKO central drive ebike (i believe it's a Tonaro bighit). I asked the Australian distributors for the schematic and they sent me this. It's a bit average but hopefully it helps someone.
Attachments
bighit-Tom-english 2010.pdf
Schematic for Tonaro bighit (AKA Aseako Sport and various others)
(317.29 KiB) Downloaded 392 times

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adrian_sm
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Re: Upload Your Circuit Schematics & Requests Here...

Post by adrian_sm » May 15, 2012 3:58 am

:lol: Nice user name
A_Boring_Username wrote:I recently got myself an ASEAKO central drive ebike (i believe it's a Tonaro bighit).
From the schematic, I think this is the mob that make them. Well they are the ones that bothered to put them through the EN15194 test regime.
http://www.caticgz.com/FirstItem.php?fdSortid=AAAO
Build #1 ~28kg ~ 700w Avanti Hardtail Crystalyte 408, 48V10Ah Headway. ~5500 kms to date. (retired)
Build #2 ~30kg ~2000w Giant AC Dually Crystalyte 408, 48V10Ah Headway + 6s10Ah LiPo = 70V. ~15000 kms to date [SOLD]
Build #3 ~13kg ~2000w Commuter Booster <1kg Friction Drive in Beta testing (www.commuterbooster.com)
Build #??? ~21kg ~1500w Adrian's Bafang BPM Hardtail MTB Bafang BPM code12, 15s LiPo, ~40kph, ~30kms

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Re: Upload Your Circuit Schematics & Requests Here...

Post by A_Boring_Username » May 15, 2012 5:26 am

adrian_sm wrote: From the schematic, I think this is the mob that make them. Well they are the ones that bothered to put them through the EN15194 test regime.
http://www.caticgz.com/FirstItem.php?fdSortid=AAAO
Thanks, that looks like it. Currently the throttle seems to just be a switch (i.e. all on or off), and the pedal assist takes too long to turn on and off, so I think a controller upgrade may be in order. Any suggestions?

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adrian_sm
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Re: Upload Your Circuit Schematics & Requests Here...

Post by adrian_sm » May 15, 2012 6:13 am

Probably worth starting another thread before we derail this one with non-schematic controller discussions.

But I have been very happy with my 6fet from Lyen. Running upto ~1.5kw power levels with no issues. But never used PAS so can't comment.
http://www.lyen.com/

[EDIT] And here is it's schematic, jsut to keep things on topic. :lol:
https://endless-sphere.com/forums/do ... p?id=82843
Build #1 ~28kg ~ 700w Avanti Hardtail Crystalyte 408, 48V10Ah Headway. ~5500 kms to date. (retired)
Build #2 ~30kg ~2000w Giant AC Dually Crystalyte 408, 48V10Ah Headway + 6s10Ah LiPo = 70V. ~15000 kms to date [SOLD]
Build #3 ~13kg ~2000w Commuter Booster <1kg Friction Drive in Beta testing (www.commuterbooster.com)
Build #??? ~21kg ~1500w Adrian's Bafang BPM Hardtail MTB Bafang BPM code12, 15s LiPo, ~40kph, ~30kms

okmate
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Re: Upload Your Circuit Schematics & Requests Here...

Post by okmate » May 17, 2012 1:41 pm

Hi guys i have a project in wait and looking forward to connecting it all up i will have a 48v battery pack but would like the battery wired up so that i can use my existing 24v charger can anyone suggest a schematic for me thanks guys

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Re: Upload Your Circuit Schematics & Requests Here...

Post by boo » May 26, 2012 9:02 am

okmate wrote:Hi guys i have a project in wait and looking forward to connecting it all up i will have a 48v battery pack but would like the battery wired up so that i can use my existing 24v charger can anyone suggest a schematic for me thanks guys
i assume you use 4 X12V battery. Connect them series to form 48V pack. you can consider this configuration. Fuses are for protection in case the switch got stuck.
Attachments
24V charger to 48V batt.jpg
24V charger to 48V batt.jpg (40.62 KiB) Viewed 40 times
2nd build: Giant Trance
HS3540; 12FET Infineon; 18S1P 5Ah Lipo

1st build: Mongoose Tyax Comp
MAC Motor 10T; 9FET Infineon
36V 15Ah LiFePO4

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Re: Upload Your Circuit Schematics & Requests Here...

Post by okmate » May 26, 2012 5:52 pm

boo wrote:
okmate wrote:Hi guys i have a project in wait and looking forward to connecting it all up i will have a 48v battery pack but would like the battery wired up so that i can use my existing 24v charger can anyone suggest a schematic for me thanks guys
i assume you use 4 X12V battery. Connect them series to form 48V pack. you can consider this configuration. Fuses are for protection in case the switch got stuck.
thanks mate thats great could you tell me what amp the fuses should be also what type off switch should i use is that a double pole rocker switch

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Re: Upload Your Circuit Schematics & Requests Here...

Post by boo » May 27, 2012 12:08 am

Current rating for the fuses will be around 50% more than your charger rated current and less than 1C rating of your battery. Switch is a double pole double throw, and can be a rocker or toggle switch, preferably a 3 position ( right or left for battery selection and Off at the center). Sorry I don't have the exact part numbers.
2nd build: Giant Trance
HS3540; 12FET Infineon; 18S1P 5Ah Lipo

1st build: Mongoose Tyax Comp
MAC Motor 10T; 9FET Infineon
36V 15Ah LiFePO4

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Re: Upload Your Circuit Schematics & Requests Here...

Post by HypnoToad » Jun 18, 2012 9:03 pm

It's a bit of a long shot but would anyone happen to have the schematic to Ezee 36v brushless motor controllers?

I managed to damage a few tracks on the PCB, and it would be far easier with some schematics.

Also, how easy would it be to change or disable the upper voltage limit for the battery?

This seems to be the main chip, and there are 5 holes in a row next to it which could be a connection to a programmer?

Image

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Re: Upload Your Circuit Schematics & Requests Here...

Post by RichiePA » Jul 15, 2012 4:57 am

Wow what a useful thread cant believe I've overlooked this for so long.

I've already posted this elsewhere but it is probably of some use here, this is a sort of battery circuit schematic for anyone who wants to build a lipo battery pack with Methods HVC/LVC parallel boards.
battery circuit inc hvc lvc boards.jpg
battery circuit inc hvc lvc boards.pdf
(112.98 KiB) Downloaded 276 times
The .pdf shows the best detail if you need to zoom in on any part of the image.
Giant DH Team, Crystalyte HT35 rear hub, Crystalyte 72V 45Amp controller,
Build thread here

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Re: Upload Your Circuit Schematics & Requests Here...

Post by lc_60 » Jul 16, 2012 4:15 pm

acid wrote:I build a 100V/100A switch with a precharger:

Image
Image
Image

The FETs are IRFB4110 from an old controller, 3 in parallel and the forth one to precharge the controller over a 100 ohm resistor.

edit:
This is the final result. It charges the controller with 1A for half a second. That should be enough time to connect the battery.
For 48V I would replace the 4.7u capacitor with 2.2u.
The z-diodes protect the FETs from blowing and the voltage range is 29-100V now.



I'm building an e-bike and I'd like to put a precharger circuit. Your circuit is very good and I'm triyng to make one alike but in your diagram I can't see where is the way out of the B-.
You have a way in where is V1 84V but then the circuit closes around only interrupted in the key switch (j1 Key=A), but I can't see the way out. Can you indicate where it is? I guess it could be near the 6 but I'm not sure.
Thank you

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Re: Upload Your Circuit Schematics & Requests Here...

Post by lc_60 » Jul 28, 2012 11:44 am

I've already been answered in the topic Battery Connection + On/Off Switch,

Tanks.

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Re: Upload Your Circuit Schematics & Requests Here...

Post by steveo » Aug 27, 2012 7:09 pm

Can anyone post a schematic for the newest generation of infinion pcb controllers?

Thank you
Repair Thread
https://endless-sphere.com/forums/viewto ... =3&t=27170
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Re: Upload Your Circuit Schematics & Requests Here...

Post by billyjones454 » Oct 06, 2012 7:46 pm

Looking for a schematic for a thermometer with alarm. I don't want/care for a display. Just an alarm that can be mounted discretely that will go off at a certain temperature.

Also a simple LVC that my throttle would be routed through. Again, no display required.

Thanks!

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Re: Upload Your Circuit Schematics & Requests Here...

Post by amberwolf » Oct 07, 2012 3:16 am

billyjones454 wrote:Looking for a schematic for a thermometer with alarm.
http://www.google.com/images?q=schemati ... with+alarm
some have displays some don't, don't knwo anyting about any of htem.

Another option could be as simple as an resistive thermal sensor in a voltage divider driving base of transistor that pulls donw ground on a piezo buzzer; you'd have to work out values for things.

See Methods HVC/LVC thereads for the schematics to the LVC/throttle control.

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Re: Upload Your Circuit Schematics & Requests Here...

Post by lava » Nov 20, 2012 12:35 am

I am considering building a 48V A123 LiFePO4 pack instead of buying one; can someone direct me to a schematic of a typical arrangement with BMS? I looked at quite a few pages of this thread but didn't find anything. I'm an electrical engineer so I am pretty sure I could pull it off without much trouble, but I would like to see a schematic to really get a sense of the cost savings vs time investment.

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