**broken link removed**
what im trying to do is make a wall of rgb leds and have them change colour and pulse from side to side (top to bottom in the picture above)
so i made this circuit.
the plan is to have 3 decade counters each having a clock at different frequencies this would give the effect of changing colour
each output of the decade counter is connected to the two transistor with a capacitor and resistor this adds a fade to the led as it turns off
this is then connected to one segment of 7 rgb leds
the circuit only shows 2 rows of leds but the real one will have 7 leds by 7 leds
what i want to know is
---what decade counter to use the one i have used on this site Circuit Simulator Applet uses a decade counter with 10 outputs and the one in the diagram above has 7 but i think it converts it into 7 segment type display
the circuit import code is :
-- i also want to know the effeciency of the circuit especially the transistor bit of it
can you reduce the transistor section but still have 7 leds powered off it and have it still fade?
-- in the circuit simulation app it says as the leds turn on the current drawn is 14A but this is a spike would this work fine with a ac adapter whos output is 12V at 1.5A max
thanks
any other constructive advice is welcome
what im trying to do is make a wall of rgb leds and have them change colour and pulse from side to side (top to bottom in the picture above)
so i made this circuit.
the plan is to have 3 decade counters each having a clock at different frequencies this would give the effect of changing colour
each output of the decade counter is connected to the two transistor with a capacitor and resistor this adds a fade to the led as it turns off
this is then connected to one segment of 7 rgb leds
the circuit only shows 2 rows of leds but the real one will have 7 leds by 7 leds
what i want to know is
---what decade counter to use the one i have used on this site Circuit Simulator Applet uses a decade counter with 10 outputs and the one in the diagram above has 7 but i think it converts it into 7 segment type display
the circuit import code is :
$ 1 5.0E-6 11.086722712598126 1 5.0 50
163 208 672 304 672 0 10 0.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0 0.0 0.0
R 272 64 272 16 0 0 40.0 5.0 0.0 0.0 0.5
r 272 160 320 160 0 100.0
c 272 160 272 208 0 1.0E-5 0.6105397283480647
t 320 160 352 160 0 1 -2.311863355252724 0.6070610862954182 100.0
w 272 208 352 208 0
w 352 208 352 176 0
162 352 112 352 144 1 2.1024259 1.0 0.0 0.0
w 352 64 272 64 0
g 272 208 272 288 0
w 208 64 192 64 0
w 192 64 192 736 0
w 192 736 528 736 0
R 208 704 144 704 1 2 412.0 2.5 2.5 0.0 0.5
w 240 640 240 208 0
w 240 208 224 208 0
w 1200 96 1200 48 0
w 1200 192 1200 160 0
r 432 160 480 160 0 100.0
c 432 160 432 208 0 1.0E-5 0.6205148471370363
t 480 160 512 160 0 1 -2.1390338318538524 0.615616661484181 100.0
w 432 208 512 208 0
w 512 208 512 176 0
162 512 112 512 144 1 2.1024259 1.0 0.0 0.0
g 432 208 432 288 0
w 432 64 512 64 0
w 432 64 352 64 0
w 384 144 384 320 0
w 384 320 272 320 0
w 272 320 272 640 0
r 576 160 624 160 0 100.0
c 576 160 576 208 0 1.0E-5 0.6355665255243144
t 624 160 656 160 0 1 -1.7930520499456795 0.6276425080428769 100.0
w 576 208 656 208 0
w 656 208 656 176 0
162 656 112 656 144 1 2.1024259 1.0 0.0 0.0
g 576 208 576 288 0
w 512 64 576 64 0
w 576 64 656 64 0
w 528 144 528 336 0
w 528 336 304 336 0
w 304 336 304 640 0
t 224 144 272 144 0 1 -5.0 -0.6105397283480647 100.0
w 272 128 272 64 0
t 384 144 432 144 0 1 -5.0 -0.6205148471370363 100.0
t 528 144 576 144 0 1 -5.0 -0.6355665255243144 100.0
w 432 128 432 64 0
w 576 128 576 64 0
w 224 208 224 144 0
r 352 112 352 64 0 100.0
r 512 112 512 64 0 100.0
r 656 112 656 64 0 100.0
w 656 208 688 208 0
w 688 64 656 64 0
w 208 64 272 64 0
o 1 64 0 33 4.374501449566024 22.397447421778043 0 -1
-- i also want to know the effeciency of the circuit especially the transistor bit of it
can you reduce the transistor section but still have 7 leds powered off it and have it still fade?
-- in the circuit simulation app it says as the leds turn on the current drawn is 14A but this is a spike would this work fine with a ac adapter whos output is 12V at 1.5A max
thanks
any other constructive advice is welcome