Fuse Monitor / Alarm
It came to me in a flash. A simple way to see if a fuse has blown without removing it from its holder. Its not often you can design a circuit using just two components, but with just one resistor and an LED this circuit provides visual indication of when a fuse has blown.
LED 1 is normally not lit, 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! Note that the LED will only light under fault conditions, i.e. a short circuit or shunt on the load. In this case the supply current is reduced to a safe level by R1.
Title: Fuse Monitor / Alarm
electronic circuit
Source: www.redcircuits.com
Published on: 2005-02-03
Reads: 787
Print version:
Other electronic circuits and schematics from Power
-
Pulse Charger for reviving tired Lead Acid batteries
-
5V/1A Power Supply
-
Whistle On - Whistle Off
-
Instrument panel lamp dimmer control
-
120 VAC Lamp Dimmer
-
Negative Supply from single positive Supply
-
Variable Voltage and Current Power Supply
-
0-30 vdc stabilized power supply with current control 0.002-3 a
-
500W low cost 12V to 220V inverter
-
Constant Current Battery Charger