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Fuse Monitor Indicator circuit |
Description:
The idea for this project may have come to me in a flash of inspiration, and its a very simple way to check if a fuse has blown without removing it from its holder.
Notes
The simplicity of this circuit uses just two components, but with
just one resistor and an LED this circuit gives visual indication of
when a fuse has blown. LED1 is normally off, being “short circuited ” by
the fuse, F1. Should the inevitable “big-bang” happen in your workshop
then LED1 will illuminate and led you know all about it! Please note
that the LED will only illumininatet under fault conditions, i.e. with a
short circuit or shunt on the load. In this case the current is reduced
to a safe level by R1.
