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Comment by tinco

At university one of the mandatory courses was Computer Organisation, which teaches how computers are built electronically. Two weeks of that course covered DRAM timings. Recently (almost 15 years later) I was trying to design a simple automation system for my home's ventilation system, and for it I needed to pull my logic signal up to 10v using a FET. I had absolutely no idea how to do that.

It's absolutely crazy that at some point I was able to (crudely) design a computer logically to the level of detail of DRAM timings, but at the same time I've never had a deep enough understanding of current to design a circuit that uses a logical signal to switch a 10v line using a FET.

(this is how you do it btw: https://tinyurl.com/ydsgmdvh)

parent tinco 4 years ago

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