Tech news tagged ‘inductance’

An Engineer in Wonderland – Alice invents the thyristor

Doing things with bicycle dynamos is a bit of am obsession with me and several times I have pondered how to supply voltage to things that do not need the whole 3W output. The trouble with a permanent magnet generator, as these things are, is turning them off as they…

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An Engineer in Wonderland – Messrs Sziklai and Pease save the day

I made up a prototype current regulator for the LED ceiling using a CA3140 and a BUZ11 mosfet, all on a chassis that I once built for a motorcycle voltage regulator.

And it worked, but current was suspiciously high on the upper settings.

Cue the scope and….oh woe…. it…

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