Help please on a component

Thread Starter

aaharvey

Joined Oct 7, 2006
1
Hi All

I'm trying to intergrate some turn signals into the rear light of my motorcycle. I've done some basic circuit work before but can't think of what I need to get this working in the way that I want. If someone could offer some help I'd be very gratefull.

My rear light is made up of about 20 red LEDs, I want to add about 5 Amber LEDs to each side of the light. When the amber turn LEDs are illuminated I want to turn off the surrounding red LEDs. I thought I would be able to do this easily with the normally closed terminal on a relay controlling the earth feed to the LEDs I want switched off. This would allow the normal operation of the full tail/brake light when the indicators are not being used.

The problem is that the feed I would need to use to control the coil on the relay is constantly being switched on and off by a flasher relay (to flash the indicators). What I need is a component that outputs a constant feed for a second or so when being fed by an on/off feed. Does anyone have any ideas on what I could use? I have included a picture of the schematic to (hopefully) make things a bit clearer.

TIA
Andy

 

Søren

Joined Sep 2, 2006
472
Hi,

The problem is that the feed I would need to use to control the coil on the relay is constantly being switched on and off by a flasher relay (to flash the indicators). What I need is a component that outputs a constant feed for a second or so when being fed by an on/off feed.
If you turn off the tail light alltogether, the reference for which way you're flashing off to will be lost. Personally, I'd prefer the back-and-forth action that you have now - that will also make it much more noticeable :)
 
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