Electronica

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 withoutremoving it from its holder. The simplicity of this circuit uses just two components, but with just one resistor and an LED this circuit givesvisual indication of when a fuse has blown. LED1 is normally off, being "short circuited " by the fuse, F1. Should the inevitable "big-bang" happenin your workshop then LED1 will illuminate and led you know all about it! Please note that the LED will only illuminate 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.

The idea for this project may havecome 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. Thesimplicity of this circuit uses just two components, but with just one resistor and an LED this circuit gives visual indication of when a fuse hasblown. LED1 is normally off, being "short circuited " by the fuse, F1. Should the inevitable "big-bang" happen in your workshop then LED1 willilluminate and led you know all about it! Please note that the LED will only illuminate under fault conditions, i.e. with a short circuit or shunton the load. In this case the current is reduced to a safe level by R1.

Circuit diagram:
[pic]


Circuit diagram:
Fuse Monitor Circuit Diagram