blinking leds

[phillups]

Can the new blinking leds be used, with proper resistors, directly from DCC track power?

[larak]

Disclaimer: I don't know everything about all versions of these.

What I have read is that these LEDs contain a built in blinking circuit. They run on 5 to 14 volts DC and can tolerate a reverse voltage of about 5 volts. The operation of the circuit depends on the exact DC voltage applied. Some (all??) self-limit forward current)

So in short, no. DCC is an AC signal. The reverse voltage would likely destroy them and even if you used a series rectifier, the pulsing DC might cause erratic operation.

You could use a series diode, and an RC filter to create steady DC at the right level though.

Maybe someone else will have more experience with these guys.

PS: to the forum.

Karl 

[cacole]

They work better on battery power, but yes, it would be possible to power one from your DCC track IF you construct a proper diode bridge rectifier, capacitive filter, and voltage regulator circuit.  The cost for these parts would far exceed the cost of a battery or two.  I made a FRED using a 3mm red flashing LED, two AAA batteries, and a small toggle switch.  The batteries are hidden in an intermodal well car under a container