Build log for my DC controller
March 11. Drop by Harbor freight for some supplies - emery cloth, drill bits.
Drop by Fry's for some distilled water .. for the golf cart batteries .. if we get that far!
Paul got the chips soldered to the DC board yesterday. They look good!
We got the IGBT's tested - matched for voltage drop. Run 20A through the IGBTs and record the voltage drop. And it was documented. They match well - .03V difference from highest to lowest.
The mounting bolts for the control board standoffs were drilled.
The copper sheets were drilled - large clearance holes - with a new step drill bit. I messed up one of the holes
. Since I was drilling both sheets at once, I messed up BOTH controller sheets ... sigh!
The chill plates were sanded off level and smooth, the heat sink paste applied, the IGBTs bolted down.
The standoffs were put on, ready for mounting the DC board. The current sensors were mounted on the chill plate.
... I think that was it ... that should be most of it ...