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I'll admit they are a bit pricey, but you get free fast shipping, and profits go towards improving oneTesla =)
Sale date: 08/09/12
Tracking number: --
Estimated Delivery: 08/15/12 - 08/22/12
Still waiting. ;)
Sent you a PM hopefully rectifying this issue.
Also, I have interrupter boards now, which are completely untested. PM me if you're interested in alpha-testing one, and I'll see if I can scratch up some documentation to make things work.
Registered Member #4362
Joined: Sat Jan 21 2012, 03:44AM
Location: Texas
Posts: 98
Started buildup tonight.
Two things I feel are worth mentioning
1. Power cord is not standard. I have 5 laptop power supplies and all have middle pin V+ The board connector is wired for middle pin ground. Easy switch by cutting cord.
2. A 74hc14 is not a good substitute for the recomended 74ls14n It will not switch the interupt signal on pin 12.
Edit: interupt signal good to pin 13 on 74hc14 but pin 12 was pulled high "not toggling" I found the proper 74ls14n and pin 12 is toggling but still no sparks. No output from gate drivers.
I think the problem is my optical sensor. I used an if-d96f because I had a drawer full, but the output may not be correct for the board. IF-d95T on order.
Registered Member #2919
Joined: Fri Jun 11 2010, 06:30PM
Location: Cambridge, MA
Posts: 652
E.TexasTesla wrote ...
Started buildup tonight.
Two things I feel are worth mentioning
1. Power cord is not standard. I have 5 laptop power supplies and all have middle pin V+ The board connector is wired for middle pin ground. Easy switch by cutting cord.
2. A 74hc14 is not a good substitute for the recomended 74ls14n It will not swith the interupt signal on pin 12.
(1) Yes, this will be fixed in the retail release (2) The 74HCT14 is a good substitute, as it has TTL compatible logic levels. Also, the HC should work fine; what problems are you having, exactly?
Registered Member #1643
Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
Its not standard? Heck i have 30 cords laying around in a box from computer power supplies. I just randomly grabbed one, chucked it into the connector,and bam..worked.
Cant recall if this was already stated or known but, Do please add an OCD. I installed my own, but a DRSSTC really should have one to help prevent issues. For people that know what they are doing, its fine. But for newer people, maybe a first DRSSTC person, if they just kill that PWM pot on the interrupter and blow the bridge because it ran >300A .. yeah.
Registered Member #2919
Joined: Fri Jun 11 2010, 06:30PM
Location: Cambridge, MA
Posts: 652
Killa-X wrote ...
Its not standard? Heck i have 30 cords laying around in a box from computer power supplies. I just randomly grabbed one, chucked it into the connector,and bam..worked.
Cant recall if this was already stated or known but, Do please add an OCD. I installed my own, but a DRSSTC really should have one to help prevent issues. For people that know what they are doing, its fine. But for newer people, maybe a first DRSSTC person, if they just kill that PWM pot on the interrupter and blow the bridge because it ran >300A .. yeah.
Please do consider it :)
The decision not to have an OCD was an active one; it cuts costs and also eliminates the need to trim the OCD pot. With that being said, there are potential plans for a slightly larger full-bridge version of the board, which will probably have OCD and such. Also, I'm curious, how did you implement an add-on OCD? If it was integrated into the interrupter, I'd be interested in adding it to the kit. Also, I think he was referring to the reversed DC jack on the board, which was an unfortunate layout mistake on my part. As an added note, if you want to have a coil with high coupling (to reduce pulsewidths and hence stress during music), this stuff: is great for insulating the secondary.
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oneTesla - a small single-board DRSSTC
