Blown fuse indicator simple dual color

291

05:02:57

Blown fuse indicator simplest design for automotive application. Can be used with two LEDs or a three-lead bi-color common cathode LED. Red LED resistor (200 ohm) will need to be changed to an appropriate value so that it is very dim when the fuse is good. Green LED acts as a diode NOT gate for the red LED and can be substituted with a small low power general purpose diode, but is needed for proper operation.

published 9 years ago

giomix

9 years ago

But using this, you can supply only few mA. For example, replace resistor with a lamp 13.8V 1W ... and led immediately will blow too, like the fuse

giomix

9 years ago

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