I am building a Road construction Light bar and need some help! I have built three different circuits to get my lights what i want them to do. Two of the circuits are 555 and 4017 circuits (for the left to right flashing) and one is a double 555 and relay to get my Wig Wag effect. Everything works fine and looks great but i am having problems lighting the lights on the top of the truck. I need more current coming from the 555 and 4017 circuits. I need to amplify the power and cant figure out the correct transistor and necessary resistors to power both my in truck display and the lights on the top of the truck? I dont know how to draw up a schematic but i can post pictures of what i have and can explain what everything does.
There are two different project boxes one is the control box with 10 Led's on the cover along with three different sweitches. One is a three way switch that controls the left and right and the red switch contols the wig wag the smaller one on the right is the power on or off. The Wig Wag powers the lights on the top of the truck fine but it is the other two Left and Right curcuits that need more power to power the lights on the top.
My problem is that i have to power the LED's on the control pannel and the ones on top. I added four 2N3904 Transistors trying to get the power up but when i do it makes the light on the display constantly on... So what resistor values do i need to make the light turn on and off but still amplify the current to the 12 LED lights on top of the truck? (There are 2 lights with 6 LED's on each output of the 4017) I have two lights connected to each output, it looks better. So instead of having the 4017 count through all 10 individually it only counts through 5 and flashes two lights at once. The whole thing is powered by 12v and im having problems. Please help me out i have tried to understand the calculations for my transistors but cant seem to get it right.
There are two different project boxes one is the control box with 10 Led's on the cover along with three different sweitches. One is a three way switch that controls the left and right and the red switch contols the wig wag the smaller one on the right is the power on or off. The Wig Wag powers the lights on the top of the truck fine but it is the other two Left and Right curcuits that need more power to power the lights on the top.
My problem is that i have to power the LED's on the control pannel and the ones on top. I added four 2N3904 Transistors trying to get the power up but when i do it makes the light on the display constantly on... So what resistor values do i need to make the light turn on and off but still amplify the current to the 12 LED lights on top of the truck? (There are 2 lights with 6 LED's on each output of the 4017) I have two lights connected to each output, it looks better. So instead of having the 4017 count through all 10 individually it only counts through 5 and flashes two lights at once. The whole thing is powered by 12v and im having problems. Please help me out i have tried to understand the calculations for my transistors but cant seem to get it right.
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