Hi all,
I've been thinking about pricing for bare control boards (no components fitted).
Its really hard to decide on a price as it depends on quantities I buy in so risk involved etc.
Unfortunately the cost has to take into account the tax man etc.
Provisional pricing bare control boards (no components fitted)
NZD $40 (approx USD$30 depending on exchange rate)
Remember the NZD is currently around 0.75 US depending on the randomness of the financial types.
I may be able to offer discounts for multiple boards PM if interested.
Shipping is extra, probably NZ$30 - NZ$40 to US, I need to look into that some more before I actually put them on sale.
It might be a good idea if someone in the US wants to receive a package of boards and distribute them to save on shipping.
I'm open to suggestions here as I know shipping between New Zealand and the US is expensive.
For this you are getting not only the 4 Layer board but the right to use the software I'm developing that will support not just
Hall effect mode but I am targeting full vector control (sinewave) and sensorless operation for mid next year (no guarantees on date).
There will be software updates until I get that fully running and as I improve it.
Initial software will be hall effect sensored trapezium drive of which a simple version will be available when I release the boards.
This first software will be fairly simple but I hope to quickly build up the routines for throttle response etc.
I will be expanding the CAN interface later to allow interaction to dashboards and BMS's and even grouping of motor controllers etc.
The software allows full configuration of the board to scale to your desired voltage and current etc.
Although I will provide software there is nothing stopping you from using your own software on this board,
I will provide sufficient details and at some sample source code for a simple application that can run on the board for those who want to do it themselves.
I will also provide assistance on endless-sphere to get the board / software working in your application.
Minor software customisation as long as its also useful to others is not a problem
.
Major customisation not applicable to others may have additional cost
To use this board you would need to provide a 15VDC supply and your own gate drive circuits and CT's as per the implementation guide.
Board features:
microsd for data logging and parameter storage
USB interface
TTL serial interface for debugging of configuration
CAN interface
Hardware current trip circuiits
simultaneous sampling ADC for 2 paris of channels.
SPI interface (currently unused)
see
http://endless-sphere.com/forums/download/file.php?id=49760 for the IO connections to yuour power board.
I will order more boards shortly provided the pricing doesn't scare too many of you off :lol:
I'm working on a final BOM for this board but its not quite ready yet.
I do have a target price in mind for the built up control boards but until I do the BOM I'm not sure if it is achievable.
Hopefully I'm not too far off the mark on pricing. I'm sure you will let me know if I am.
Ricky