I do believe a fuse is a current limiting deviceThe overall ckt is not that flash, as the temp goes up the Vout will go down, there is no current limiting - so a short = bang.
Um, my mastery of English is quite good, thank you very much. Perhaps you should open your dictionary and look up the meaning of "limit". Here, I'll do it for you:@barry, " I do believe a fuse is a current limiting device "
your mastery of the English language lets you down a bit here - to what current level does a fuse limit current to ?
nope a fuse is either low R compared to the load, or open circuit compared to a fault level load
it does not and cannot limit the current to any specific level until after it has blown - when that level is zero - which is the trivial and unhelpful answer.
When it blows the current transcribes an arc of very high current, before falling to ( hopefully ) zero - so no limiting there either.
Per my earlier comment - a short = bang ( either of the fuse or the semi's or both )
Current limiting, and perhaps foldback, are extremely useful on a bench supply to prevent hours of circuit fixing for new circuits under run-up / test.
This is confusing. You can’t “interrupt” current and also “reduce the current” (although interrupting it does reduce it to zero).Hi,
Wikipedia says ( https://en.m.wikipedia.org/wiki/Current_limiting )
" Current limiting is the practice of imposing a limit on the current that may be delivered to a load to protect the circuit generating or transmitting the current from harmful effects due to a short-circuit or overload. The term "current limiting" is also used to define a type of overcurrent protective device. According to the 2020 NEC/NFPA 70, a current-limiting overcurrent protective device is defined as, "A device that, when interrupting currents in its current-limiting range, reduces the current flowing in the faulted circuit to a magnitude substantially less than that obtainable in the same circuit if the device were replaced with a solid conductor having compatible impedance."
Klaus
I don´t know either.You can’t “interrupt” current and also “reduce the current”
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