Home |
Search |
Today's Posts |
|
#1
posted to rec.boats.electronics
|
|||
|
|||
Navigation light monitor
On Nov 22, 9:04*pm, Sjouke Burry
wrote: CS wrote: I am trying to devise a simple circuit to monitor when a 24v nav lamp has blown. *Found thishttp://www.gammatron.com.au/datasheets/GM050%20Datasheet.pdf but at AU$54 it is pretty pricey. *Should not be to difficult to make up, but I need to know he values of the components. * I already have the switch, LED and a resistor to monitor when lamp is on. TVMIA. Put the monitor led in series with the lamp, with two or tree normal diodes accross the led to limit the voltage/current. 20 ohm resistor in series with the led is a good idea. The shunt diodes must be able to carry the lamp current. The read leds need the least voltage. Just put a cheap amp meter in series after the switch. When the switch is closed and you have current flow to the light the meter will show amps when bulb opens or burns out the amp meter will show 0 amps. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
navigation light dilemma | General | |||
Navigation Light Range Question | ASA | |||
Navigation Light Question | ASA | |||
Navigation light switch problems | Cruising | |||
Navigation Light Switch | General |