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LED Sign
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r0b3rt03
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Joined: 14 Apr 2009
Posts: 14

PostPosted: Sun Apr 19, 2009 6:51 pm    Post subject: Reply with quote

Do you have any idea what would be the best thickness for the plexiglass. Also, when I am lighting the plexiglass with the LED's I was planning on using 5mm LED's and powering them with a 9v source. If possible I would like to use a DC source to plug it into the wall.

How would I go about powering this with DC?

Thanks again.
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Alan
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Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sun Apr 19, 2009 7:36 pm    Post subject: Reply with quote

r0b3rt03 wrote:
Do you have any idea what would be the best thickness for the plexiglass. Also, when I am lighting the plexiglass with the LED's I was planning on using 5mm LED's and powering them with a 9v source. If possible I would like to use a DC source to plug it into the wall.

How would I go about powering this with DC?

Thanks again.


I am not sure the best thickness but I would think that it would not have to be very thick. 3mm LEDs might help you work with thinner plexi glass.

You sure could power it with a plug in power supply. Just like a 9 volt battery the plug in supply would need to be DC otherwise you would need to rectify the source.

Have a look at this page for instructions on calculating the resistor for your application.
http://alan-parekh.com/led_resistor_calculator.html

One thing to note about most plug in power supplies is that they often put out higher voltage than what they are listed as. For example some inexpensive 9 volt DC supplies will put out 12 volts with no load.
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r0b3rt03
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Joined: 14 Apr 2009
Posts: 14

PostPosted: Sun Apr 19, 2009 8:26 pm    Post subject: Reply with quote

I already have some LED's with resistors for both projects, however I am having some difficulty finding a way to power this with DC power. Is there a product that people have used for this? Where could I purchase this kind of product?

Thanks.
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JingleJoe
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Joined: 01 Apr 2009
Posts: 52
Location: England

PostPosted: Mon Apr 20, 2009 10:16 am    Post subject: Reply with quote

r0b3rt03 wrote:
I am having some difficulty finding a way to power this with DC power. Is there a product that people have used for this?

Batteries. 9 Volt, DC ones.

r0b3rt03 wrote:
Where could I purchase this kind of product?

Almost any convenience store or corner shop or hardware store or electronics shop.
Laughing
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r0b3rt03
HG Junior


Joined: 14 Apr 2009
Posts: 14

PostPosted: Sat Apr 25, 2009 12:53 am    Post subject: Reply with quote

JingleJoe wrote:
r0b3rt03 wrote:
I am having some difficulty finding a way to power this with DC power. Is there a product that people have used for this?

Batteries. 9 Volt, DC ones.

r0b3rt03 wrote:
Where could I purchase this kind of product?

Almost any convenience store or corner shop or hardware store or electronics shop.
Laughing


I think I misphrased my question. What I meant was how can I make an etched LED sign or any LED project run off of electricity from a wall plug?

Thanks.
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Alan
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Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sat Apr 25, 2009 12:08 pm    Post subject: Reply with quote

r0b3rt03 wrote:
JingleJoe wrote:
r0b3rt03 wrote:
I am having some difficulty finding a way to power this with DC power. Is there a product that people have used for this?

Batteries. 9 Volt, DC ones.

r0b3rt03 wrote:
Where could I purchase this kind of product?

Almost any convenience store or corner shop or hardware store or electronics shop.
Laughing


I think I misphrased my question. What I meant was how can I make an etched LED sign or any LED project run off of electricity from a wall plug?

Thanks.


You just need a plug in power supply like the one we sell.
http://alan-parekh.vstore.ca/product_info.php/cPath/10/products_id/69

You can get these anywhere though like Radio Shack. They come in a variety of voltages, the one we sell is 12 Volts.
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r0b3rt03
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Joined: 14 Apr 2009
Posts: 14

PostPosted: Sat Apr 25, 2009 1:42 pm    Post subject: Reply with quote

Alan wrote:

You just need a plug in power supply like the one we sell.
http://alan-parekh.vstore.ca/product_info.php/cPath/10/products_id/69

You can get these anywhere though like Radio Shack. They come in a variety of voltages, the one we sell is 12 Volts.


How would I wire this product up to run then? Is there a way that I would connect this power source to the circuit instead of using 9v batteries?

Thanks.
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Alan
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Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sat Apr 25, 2009 2:00 pm    Post subject: Reply with quote

r0b3rt03 wrote:
Alan wrote:

You just need a plug in power supply like the one we sell.
http://alan-parekh.vstore.ca/product_info.php/cPath/10/products_id/69

You can get these anywhere though like Radio Shack. They come in a variety of voltages, the one we sell is 12 Volts.


How would I wire this product up to run then? Is there a way that I would connect this power source to the circuit instead of using 9v batteries?

Thanks.


Yes, a battery provides positive and negative leads. A plug in power supply also has positive and negative leads.

If you get a 9 volt plug in power supply your circuit will not know the difference between the two.
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r0b3rt03
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Joined: 14 Apr 2009
Posts: 14

PostPosted: Sat Apr 25, 2009 2:02 pm    Post subject: Reply with quote

Alan wrote:


Yes, a battery provides positive and negative leads. A plug in power supply also has positive and negative leads.

If you get a 9 volt plug in power supply your circuit will not know the difference between the two.


The image that I viewed from your store looked like it only had a female connection on it. How would I connect that to the circuit? Would I need another component to plug that into?
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Alan
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Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sat Apr 25, 2009 3:07 pm    Post subject: Reply with quote

r0b3rt03 wrote:
Alan wrote:


Yes, a battery provides positive and negative leads. A plug in power supply also has positive and negative leads.

If you get a 9 volt plug in power supply your circuit will not know the difference between the two.


The image that I viewed from your store looked like it only had a female connection on it. How would I connect that to the circuit? Would I need another component to plug that into?


Nope, all you do is clip off the end and you will be left with two wires. If you application needs 9 volts that transformer will not work for you but if you are at the design stage and can accommodate a 12 volt power supply it will work well. The nice thing about that transformer is that it is regulated so the output is 12 volts regardless of load.
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