Comments (13)
Or do you have any recommendation where to buy the circuit board
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Hi David, I can't access your link.
If you're looking for a pcb manufacturer there are plenty of options for small scale: JLC Pcb, Pcbway etc
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If its the first precharge for your team, I'd go with a simple timer-based one.
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oh sorry here is the working link:
https://docs.google.com/spreadsheets/d/1Iv6vfXVOTpihR3HI_DqoE699ijv5pMhWjXgmG9TUZTQ/edit?usp=sharing
Yes, it is the first time we build it, and not so familiar with building circuits but in the link, I have the parts that I think we need.
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I also have a problem to find a company that has a capacitance of 12000uF and over 111V and that only sell in small amounts do you know a company that I can order from?
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Sorry for the spam of Questions, but what did you use to download the code to the circuit?
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Sorry for the spam of Questions, but what did you use to download the code to the circuit?
The hardware is a Teensy 4.0.
PJRC has a guide on using Teensy with the arduino IDE.
I also have a problem to find a company that has a capacitance of 12000uF and over 111V and that only sell in small amounts do you know a company that I can order from?
I don't. Why do you need to buy this capacitor? Do your motor drivers not come with integrated capacitors?
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Yes we have but they are at 100uF and we have hub motors I don't know if that changes anything? is it enough to just use one of the motor's capacitor at 1000uF and then just ramp up the resistor?
But it seems a bit strange to have a cable go from the pre-charger to one of the hub motors that are placed near the wheel and then back to the pre-charger? then just having a capacitor in the circuit board.. just wondering
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Oh sorry, now I understand I feel so dumb, yes we can connect them to the motor controllers with their capacitors.
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I'm a little confused - help me understand.
Your motor drivers already have (presumably sufficient) capacitance at their power input. Have you determined they need additional capacitance? Is that where the figure 12000uF is coming from?
I'm afraid I can't be much help at the moment.
What is your current working idea? Perhaps a drawing/schematic would help.
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Sorry for the confusement we found that the motor controllers had 2616uF each and what we are thinking about is connecting the 2 motor controllers capacitors and use them so together we have 5230uF, so we calculated that it would take 2.6s to pre-charge to 95%
The schematic we have for pre-charge and dis-charge
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The 12V system is actually one system but in the schematic its two parts
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I updated the excel drive link also
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Related Issues (8)
- Pre charge & discharge
- TSAL V3 HOT 1
- Adjust TSAL threshold HOT 1
- TSAL R12 HOT 1
- Suspected Typo in Precharge - How to modify this design HOT 1
- Documentation for our team HOT 1
- Comparator getting too hot HOT 6
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