| Electronics > Beginners |
| How to make the circut - beginner HELP |
| (1/1) |
| Crazyassmf:
Yo guys, I didnt know where exactly to put this topic, so I hope I've made the right choice. The problem goes like that: I wanted to make a led diode stripe, which works on 12V. What that basically means is that I have 12V power, and 12 led smd diodes (350mА, 1W, 3-3.4V) which I want to place in a row or next to each other just look like those house interior led stripes. But because Iam a dummy beginner, I had no idea how to do that until I found a online calculator http://led.linear1.org/led.wiz , where I enter 12V Source voltage, 3V diode forward voltage, 350mA diode forward current (mA), 12 - number of LEDs in your array. I ended up with this: http://prikachi.com/images.php?images/568/9498568A.png. or the picture will be in attachements. First of all is this diagram correct? And how to make all the leds in one line not on 3 rows, how the diagram will look then? I know that I sound very silly, but if someone helps me with that I will be more than happy. Thank you in advance!!! 8) |
| graeme.c.payne:
The schematic diagram (what you have) does not necessarily have any relationship to the physical layout. You can do the layout any way you want as kind as is electrically equivalent to the schematic. Visualize it with longer wires and stretched out in a row. Just make sure the connections are the same as in the schematic. Sent using Tapatalk |
| Audioguru:
The LED wizard is stupid like most of them. What if the 12V is actually a little low at 11.5V and all the LEDs are maximum at 3.4V? Then they probably will be very dim. You should use a resistor value that has 3 volts across it. Then three 3.0V LEDs with a series resistor with a value of (12V - 9V)/350mA= 8.57 ohms (use 8.2 ohms) at 2W. When the 12V is a little low and the LEDs are all 3.4V then the brightness will be only a little dimmer. |
| Navigation |
| Message Index |