SingleChips

Latest CDi3s Assembly Sneak Peek
Haven't potted anything since fall 2018, some new things to touch on in this latest attempt:
1. The battery voltage reported by the unit is now calibrated so we need to make sure we record the battery calibration values before potting, impossible to access the battery terminals after assembly completion. Calibration ensures the reported battery voltage will be within 10-15 mV or so of the actual battery voltage, very important if the unit has to shut down due to a low battery condition.
2. The original switching charger has been replaced by the combination of the black PCB linear charger and a switching pre-regulator. This pre-regulator is difficult to see in the picture, follow the thicker white wire at the top to the left and down, the little board is about one square inch.
3. The old brass #4-40 interconnect hardware has been replaced with stainless steel equivalents, five of the six 4-wire groups you see in the picture make it to the outside of the box.

This one assembly can now support all the eight functions I've spoken about before so from our point of view it is extremely unlikely that a P5 submersible materializes in the future, which is of course the reason I designed this board in the first place.

Adam

Long Live the Ferraris! Both of Them!
I do have something in mind for around Halloween, in the mean time we can look at some Ferrari facts.

Adam

The Red Mod
Red mod finally implemented on all boards, last three pictures in this set is a CDi2 board originally built in 2000 and tested on the Andrea Marie in the summer of 2002. The PDL that wasn't.
Link: https://www.singlechips.com/html/CDi2.P6.shtml

Adam