deadringer popping...

[giudis]

hi friends!

My Deadringer pops when I switch it on.

How can I eliminate the problem? I've red I could put a 1M resistor from in to gnd and/or from out to gnd...is it correct? but I've not understood this method....

help me pleaaaase!!!

[madbean]

Increasing R1 from 1M to 2M2 might eliminate the problem.

Are you using high brightness LEDs, BTW?

[giudis]

yes Brian,

I'm using a high brightness blue LED for boost and a normal red for on/off....should I change the blue?

thank you!

[madbean]

You could try temporarily disconnecting the blue to see if it eliminates the pop. If so, then trying putting a small electrolytic (maybe 2u2) in parallel with the two leads of the LED and reconnect it.

[giudis]

ok thanks so much, I'll try!