Recently, [Solder Hub] put together a brief video that demonstrates the basics of a Hall Effect sensor — in this case, one salvaged from an old CPU fan. Two LEDs, a 100 ohm resistor, and a 3.7 volt ...
The best place to measure current consumption is in the main power feed. The technique is called high-side current sensing. However, measurements at that location are fraught with problems. Of primary ...
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