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After troubleshooting the board for many days and finally fixing all of the backwards components, the latching works for precharge!! This page will document the results and captures in terms of timing and state of capacitors for the board during precharge and discharge.
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State | Scope Shot(s) | Probes | |
|---|---|---|---|
Precharge |   | Purple = capacitor voltage level Yellow = iso_latch_out Blue = and_out | You can see that the and_out goes high temporarily to latch the iso_latch_out and keep it latched. |
Discharge |  | Purple = capacitor voltage Yellow = latch out Blue = gate of Q3 | |
Latch logic |   | Purple = Pin 2 of U8 Yellow = comp_out Blue = and_out |
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