| Free/Open hardware design
Noqsi Aerospace, ltd. is helping to design the SXI instrument for the NeXT space mission. We are publishing the designs and documentation under a Creative Commons license. Here are the current schematics (just CCD clock drivers so far, obsolete as of 4/2010), the designer's notebook, and a presentation I gave at Osaka University in June, 2007. As of early 2010, the mission development is getting up to speed. Here's an analysis of the vertical clock regulator circuit and if you have Mathematica, here is the source
for this analysis.
Watch this space for more.
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| Noqsi Aerospace, ltd. is helping to design photometric cameras for the Transiting Exoplanet Survey Satellite. We are publishing the designs and documentation under a Creative Commons license.
(Updated 20070810)
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TESS requires extremely precise photometry. This, in turn, requires that the CCD "bias map" be very flat and stable, requiring very stable clock drivers. This tends to cost power. But with care, a low power solution is possible. See how here.
The substrate voltage regulator also needs some care.
Current schematics:
Driver board
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Copyright 2007, 2010 Noqsi Aerospace, ltd.
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