Flashing 5watt led?

[CDRIVE]

I think I am agreeing with Chris when I say that it would be far easier to but LEDs already on a star. You still need to attach these to a heatsink unless your duty cycle is very low.

Steve, that's one thing he has going for him. If and when he gets these components together I was going to redraw the schematic and give him the brief duty cycle that you suggested earlier. It's shorter than what I originally gave him and that was brief too!

Chris

 

[samsm255]

Im going go with this LED and I asked them few times about this heat sink to be sure it will work http://www.digikey.com/product-detail/en/882-100AB/345-1105-ND/2640528 and they told me It will fit this LED.

Only thing I need help with now be4 I order these led's is a list of the parts I'll need for the new schematic. Because if the place I get my parts from in my town don't have a part I need I could try order the part off that digi-key site along with the leds all in one order

 

[CDRIVE]

How many LEDs will you be lighting?

Chris

 

[samsm255]

two still

 

[CDRIVE]

Will you be using A, C, D cells or a stack of 1.25V Nicads; Other? Or do you want to drive them from the little Puck Converter that I posted? Use of a Puck broadens the your battery choices.

Chris

 

[samsm255]

Think I've got a basic understanding about the Puck Converter. But really how much of a difference would it make in powering/putting this whole thing together?
Also type battery I would like use is C or D's. second choice would be AA batteries

 

[CDRIVE]

Since I'd like to keep this as basic as possible for you I think it would be best to not deal with a puck at this time. I'm redrawing the schematic for you. Have you selected a power switch for it yet? A miniature toggle or a push on push off (none momentary) switch will be fine. The push on/off type I'm referring to have a snap action that keeps the contacts closed or open with each push.

Chris

 

[samsm255]

I have not looked in to a switch yet but I have a few small ones laying around I could use from thing I scrap/took apart.

 

[CDRIVE]

Here's and updated schematic and a transit plot of the LED current.

Chris

 

[samsm255]

Soon as I can get the other parts I need, I hope this last time I have bug you about this project. Can't say thanks enough for helping me out with all of this stuff.

 

[CDRIVE]

Your quite welcome. Please keep us posted on your progress. By the way, I'm expecting this to run quite cool because the pulse width is so short. It'll extend your battery life too.

Chris

 

[samsm255]

Like sound of extending the battery life But I got one small question about the schematic. Is R4 a 10k resistor?

 

[CDRIVE]

Like sound of extending the battery life But I got one small question about the schematic. Is R4 a 10k resistor?

No it's a 10 Ohm resistor.

Chris

 

[samsm255]

Ok, and be sure like my original post about a 555 timer with a small Led. Im putting a wire between 4 and 8 and 2 and 6? And If I do could I use hot glue to keep the two wires from touching each other or should I try put electrical tape between them?

 

[CDRIVE]

Ok, and be sure like my original post about a 555 timer with a small Led. Im putting a wire between 4 and 8 and 2 and 6? And If I do could I use hot glue to keep the two wires from touching each other or should I try put electrical tape between them?

What in the world are you talking about? Are planning to use bailing wire???

Chris

 

[samsm255]

I'm heading out now but you can mull over this schematic while I'm gone. The values of the timing components were taken from your other topic.Chris

Link to the other topic https://www.electronicspoint.com/cant-understand-got-right-t255707p2.html

Thing Im talking about is from my very first flashing Led topic. Would I do the same thing as I did in it because from looks of things in the schematic the 2 of the 555 timer pin has to hook to 6 that has the R5/R2 resistor . And 4 and 8 run in to each other then to the resistor that hooks to the LED

Also im using tin wire I believe

 

[CDRIVE]

Link to the other topic https://www.electronicspoint.com/cant-understand-got-right-t255707p2.html

Thing Im talking about is from my very first flashing Led topic. Would I do the same thing as I did in it because from looks of things in the schematic the 2 of the 555 timer pin has to hook to 6 that has the R5/R2 resistor . And 4 and 8 run in to each other then to the resistor that hooks to the LED

Also im using tin wire I believe

I drew a schematic for you and it includes all pertinent notes. It is obviously NOT the same as your original circuit.

This circuit should be built on a PCB with the exception of the battery pack and possibly the power switch. The LEDs can but don't have to be mounted on the PCB. It depends on how you make the housing. You wire interconnects should be insulated copper wire.

I hope you don't take this the wrong way but it must be said. Your responses indicate that this project may be beyond your level of understanding and abilities.

Chris

 

[samsm255]

I'll figure it out. I like trying solve problems just bit more easy ask someone who knows more about this stuff. Sorry if I'm being pain about it. Also I didn't take last comment in wrong way. Only way I can get the understanding and knowledge of this stuff is just try and do it. So far I learned a lot with your help other resources.

 

[(*steve*)]

I'm going to start a "How to build a device from a schematic" thread. I might use this circuit as an example, so samsm255, you may want to take a look and see if I have answered all your questions...

 

[samsm255]

Think I may have it all down right now but ill see in bit after I put some more of it together. I can't short any thing other than the 555 timer if the LEDs are not hooked up right? And for me see if I got it all hooked up right and it flashes could I use a test light see if it does?
Also In your post you said you were going make "How to build a device from a schematic"I seen one thing you may want to change. In CDRIVE notes on it he said all "resistors are 1/4w except where noted" you said resistors are 1/2w except for R3 which is 2W