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UndermineBriarEverglade
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Posts: 10
Registered: 13-6-2024
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Yeah it's kind of a kludge, the charge pump uses a few mA in steady state without a disable. It would be better to use a LTC1044 or something but I
wanted to test it without waiting for new components to arrive.
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UndermineBriarEverglade
Harmless
Posts: 10
Registered: 13-6-2024
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Charge pump works well to trigger relay and safety mechanisms are adequate. But the HV converter is just whalloping this 9V battery. 2-4V most of the
time and ringing to 14V, enough to brown out the microcontroller once it starts charging up the cap. I should have scoped this in the early design
phase, I just assumed the source was sufficient based on the output voltage. Even lithium batteries droop too much. I'll need to use a separate
battery (like Sir_Gawain) or redesign to feed the small circuitry with a boost-buck converter or some nonsense.
I'll do my ETN synth soon. Why does it have to be so difficult to get nitrate salts, ammonia, nitric acid when you can literally buy POUNDS of arsenic
trioxide online.
[Edited on 2024-7-25 by UndermineBriarEverglade]
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