seanspotatobusiness
Newly Enlightened
- Joined
- Jul 12, 2010
- Messages
- 81
I would like to modify a bulb containing LED filaments (example image below) so that some of the filaments flicker, kind of like a flame. I intend to use flickering 3mm LEDs to control the flickering. Flickering LEDs contain a tiny IC inside the epoxy which cause them to flicker. I also want the bulb to be activated by a PIR sensor. I will have to carefully open the bulb and break/make some electrical connections.
I think the filaments accept 10-15 mA at 50-60 V.
Could I use a BC337-25 transistor for this? The voltage across everything is really high but I'm not sure that matters since the LEDs drop it all and the current is maximum 15 mA. If the transistor is closed, is it trying to hold back the entire 60 V? In that case what would be a suitable transistor which is small and cheap and not overkill? The max collector-emitter voltage for BC337-25 is 45 V.
I could put the flickering LED in series with the filament or I could use it to turn the transistor on and off? I don't know which is better, if either?
I think the filaments accept 10-15 mA at 50-60 V.
Could I use a BC337-25 transistor for this? The voltage across everything is really high but I'm not sure that matters since the LEDs drop it all and the current is maximum 15 mA. If the transistor is closed, is it trying to hold back the entire 60 V? In that case what would be a suitable transistor which is small and cheap and not overkill? The max collector-emitter voltage for BC337-25 is 45 V.
I could put the flickering LED in series with the filament or I could use it to turn the transistor on and off? I don't know which is better, if either?