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Timeline for How to automate passive powering?

Current License: CC BY-SA 4.0

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Mar 31, 2023 at 19:57 comment added Sandro For max supply, it all depends on the voltages OP wants. If a cut of voltage of for example 2.5V is fine, then we can increase the supply voltage to maybe 2.3V. One might also replace the mosfet by a bipolar transistor + resistor, but I don't like wasting energy on low power applications.
Mar 31, 2023 at 19:55 comment added Sandro good point for the short in the schematics, I corrected it. For the mosfet, I mentionned that to get it working at 1.8V, one needs to carfully chose the mosfet. A random N-MOS will probably not do the job. But there are still 600 references with Vth<1.5V in stock at digikey (about 10%).
Mar 31, 2023 at 19:51 history edited Sandro CC BY-SA 4.0
correcting short circuit on schematics
Mar 31, 2023 at 19:47 comment added tobalt Comp has its inputs shorted and its max supply of 1.8 V is too low to enable most MOSFETs.
Mar 31, 2023 at 19:27 history answered Sandro CC BY-SA 4.0