My low voltage lighting system... - Electronic Circuits Projects Diagrams Free

SkinnyBoy · 16th August 2005, 11:58 AM

which doens't exist yet, but is a work in progress that is pretty well worked out, and I have ordered parts that should be here soon...

Now, I've always loved halogen downlights, so, I've decided to install a system in my room, with 4 lights, suspended by horizintal wires, than run from one wall to the other. fair enough?

but, the twist, is they are going to be remote controlled, by a small keyfob remote. Each light will be able to be turned on seperatly, and the lights can be positioned along the horizontal wires as I desire...

http://oatleyelectronics.com/kits/k180B.html

thats the remote kit I intend using, and I am yet to decide on the powersupply...

any suggestions people may have? or ideas?

thanx..

I guess..

I'll post pics if anyone is interested

LATER!!

Someone Electro · 16th August 2005, 02:01 PM

You can get kits that include the fitings and the powersuply.

If not then post the ratings of your bulbs.

The powersuply has to suply the bulbs voltage and it must be able to suply more than the bulbs total curent draw.

SkinnyBoy · 16th August 2005, 08:39 PM

Quote:

Originally Posted by Someone Electro

You can get kits that include the fitings and the powersuply.

If not then post the ratings of your bulbs.

The powersuply has to suply the bulbs voltage and it must be able to suply more than the bulbs total curent draw.

I am aware of that...

the kits I've seen are for 5 20watt globes, and have a 105watt transformer, while I was intending on using 4 50watt globes, so need a powersupply capable of 200+ watts...

I was wondering if a 250VA 9volt transformer would be suitable. after rectification to give 13ish volts...

Someone Electro · 17th August 2005, 06:35 AM

You dont need to give it DC,You can drive it whith AC.Light bulbs dont care is its AC or DC.

So just give it AC and you will save a cuple of componnets.

If its and 50W bulb then 50/12 = 4,1 A

So you need an transformer that suplys about 20 A at 12V.Thats prety big.The bigest one i have puts out 20V at 10A and one 15V at 13A

Dont think an simple wall wart will do it.

There are car batery chargers that can probobly put out such powers.

awright · 17th August 2005, 07:25 AM

er...ahh... SkinnyBoy: Hold off on buying that remote control if you intend to hang your 4 lamps on the same two wires. You are not going to be able to control each lamp individually with a 4 relay controller unless each lamp has its own pair of wires. And It would seem that 4 wire pairs strung across the room (8 wires), which would permit you to control each lamp individually, would make your room look like an electrical distribution center - kind of changing the mood unless your girlfriend is an electrical engineer.

Check the current rating of the relays on the controller board and be aware that a tungsten-halogen lamp is nearly a short circuit at the instant of turn-on and draws much more for a few milliseconds than the current implied by the power rating. That is why wall toggle switches are UL listed for incandescent lighting ("INC. LIST." stamped on each wall switch meaning they are tested for life expectancy turning on incandescent lighting). Consider measuring the resistance of the cold lamp to get an idea of the initial current surge.\

This potential problem for your relays may be mitigated if your power supply is "soft," that is, will not be able to sustain its nominal output voltage during lamp warm up, thus self-limiting inrush current. You might benefit from measuring the instantanous inrush current when the lamp is first turned on to be sure your relays will not die an early death.

Have fun.

awright

SkinnyBoy · 17th August 2005, 08:18 AM

I have a 9volt, 250VA transformer... hence the question about rectifying it...

yes, I was intending to have 4 pairs of wires...

why does everyone treat me like an idiot?

is it to make yourselves feel better?

**Nigel Goodwin** · 17th August 2005, 08:28 AM

Quote:

Originally Posted by SkinnyBoy

why does everyone treat me like an idiot?

is it to make yourselves feel better?

I suspect it's because you phrased your question poorly, as you didn't specify using seperate wires it gave the impression you weren't doing so. I certainly had that impression!.

So fairly obviously people responded accordingly, they can only answer based on the information YOU provide - if you don't provide complete information you can't expect accurate answers.

SkinnyBoy · 17th August 2005, 08:32 AM

Quote:

Originally Posted by Nigel Goodwin

Quote:

Originally Posted by SkinnyBoy

why does everyone treat me like an idiot?

is it to make yourselves feel better?

I suspect it's because you phrased your question poorly, as you didn't specify using seperate wires it gave the impression you weren't doing so. I certainly had that impression!.

So fairly obviously people responded accordingly, they can only answer based on the information YOU provide - if you don't provide complete information you can't expect accurate answers.

well I'm sorry you aren't smart enough to work it out yourself...

I didn't realise I had to specify 4 pairs of wires for 4 globes... do I also need to specify its going to be plugged into a power point? =\ and that the wires connect to things? =\

**Nigel Goodwin** · 17th August 2005, 08:42 AM

Quote:

Originally Posted by SkinnyBoy

Quote:

Originally Posted by Nigel Goodwin

Quote:

Originally Posted by SkinnyBoy

why does everyone treat me like an idiot?

is it to make yourselves feel better?

I suspect it's because you phrased your question poorly, as you didn't specify using seperate wires it gave the impression you weren't doing so. I certainly had that impression!.

So fairly obviously people responded accordingly, they can only answer based on the information YOU provide - if you don't provide complete information you can't expect accurate answers.

well I'm sorry you aren't smart enough to work it out yourself...

I didn't realise I had to specify 4 pairs of wires for 4 globes... do I also need to specify its going to be plugged into a power point? =\ and that the wires connect to things? =\

In what way do you think insulting people you're asking for help is going to help you?.

SkinnyBoy · 17th August 2005, 08:49 AM

Quote:

Originally Posted by Nigel Goodwin

In what way do you think insulting people you're asking for help is going to help you?.

I never insulted anyone... I can treat you like an idiot just like I'm being treated like an idiot... if thats what you want...

**Nigel Goodwin** · 17th August 2005, 09:03 AM

Quote:

Originally Posted by SkinnyBoy

Quote:

Originally Posted by Nigel Goodwin

In what way do you think insulting people you're asking for help is going to help you?.

I never insulted anyone... I can treat you like an idiot just like I'm being treated like an idiot... if thats what you want...

It'll be interesting to see how many replies you get now?.

Personally I consider

Quote:

well I'm sorry you aren't smart enough to work it out yourself...

insulting?, particularly as I was offering you help, and answering a direct question!.

I would suggest you try reading other threads, where you will see that you can't take anything for granted, so it's important to be specific.

It's also probably NOT a good idea to insult a moderator, who has the power to lock, edit, or completely delete your posts!.

SkinnyBoy · 17th August 2005, 09:06 AM

Quote:

Originally Posted by Nigel Goodwin

It's also probably NOT a good idea to insult a moderator, who has the power to lock, edit, or completely delete your posts!.

yep, and abuse his "powers"

SkinnyBoy · 17th August 2005, 09:10 AM

if you don't like it, dont reply... seems simple to me... I haven't broken any forum rules here...

JimB · 17th August 2005, 09:21 AM

Quote:

Originally Posted by Nigel Goodwin

Quote:

Originally Posted by SkinnyBoy

why does everyone treat me like an idiot?

is it to make yourselves feel better?

I suspect it's because you phrased your question poorly, as you didn't specify using seperate wires it gave the impression you weren't doing so. I certainly had that impression!.

So fairly obviously people responded accordingly, they can only answer based on the information YOU provide - if you don't provide complete information you can't expect accurate answers.

As far as I can see, nobody is trying to treat anyone like an idiot.
While your scheme is obvious to you, because you thought of it, if you do not communicate ALL of the idea to someone else they will tend to fill in the gaps in their mental picture of your scheme with things they have seen from their own experience.
And the result is confusion, just as we have here.
When the scheme is explained fully, end of confusion.

JimB

Someone Electro · 17th August 2005, 09:22 AM

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Please be friendly toward any other member of this forum. We do not tolerate any type of abuse or bad language on the board so please refrain from using it. If you are caught your posts will be removed and your account instantly disabled and banned.
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Ok if you dont want help i wont help you !

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16th August 2005, 11:58 AM	(permalink)
SkinnyBoy	My low voltage lighting system... which doens't exist yet, but is a work in progress that is pretty well worked out, and I have ordered parts that should be here soon... Now, I've always loved halogen downlights, so, I've decided to install a system in my room, with 4 lights, suspended by horizintal wires, than run from one wall to the other. fair enough? but, the twist, is they are going to be remote controlled, by a small keyfob remote. Each light will be able to be turned on seperatly, and the lights can be positioned along the horizontal wires as I desire... http://oatleyelectronics.com/kits/k180B.html thats the remote kit I intend using, and I am yet to decide on the powersupply... any suggestions people may have? or ideas? thanx.. I guess.. I'll post pics if anyone is interested LATER!!

16th August 2005, 02:01 PM	(permalink)
Someone Electro	You can get kits that include the fitings and the powersuply. If not then post the ratings of your bulbs. The powersuply has to suply the bulbs voltage and it must be able to suply more than the bulbs total curent draw. __________________ Il give you shocking experience.

17th August 2005, 06:35 AM	(permalink)
Someone Electro	You dont need to give it DC,You can drive it whith AC.Light bulbs dont care is its AC or DC. So just give it AC and you will save a cuple of componnets. If its and 50W bulb then 50/12 = 4,1 A So you need an transformer that suplys about 20 A at 12V.Thats prety big.The bigest one i have puts out 20V at 10A and one 15V at 13A Dont think an simple wall wart will do it. There are car batery chargers that can probobly put out such powers. __________________ Il give you shocking experience.

17th August 2005, 07:25 AM	(permalink)
awright	Low voltage lighting system er...ahh... SkinnyBoy: Hold off on buying that remote control if you intend to hang your 4 lamps on the same two wires. You are not going to be able to control each lamp individually with a 4 relay controller unless each lamp has its own pair of wires. And It would seem that 4 wire pairs strung across the room (8 wires), which would permit you to control each lamp individually, would make your room look like an electrical distribution center - kind of changing the mood unless your girlfriend is an electrical engineer. Check the current rating of the relays on the controller board and be aware that a tungsten-halogen lamp is nearly a short circuit at the instant of turn-on and draws much more for a few milliseconds than the current implied by the power rating. That is why wall toggle switches are UL listed for incandescent lighting ("INC. LIST." stamped on each wall switch meaning they are tested for life expectancy turning on incandescent lighting). Consider measuring the resistance of the cold lamp to get an idea of the initial current surge.\ This potential problem for your relays may be mitigated if your power supply is "soft," that is, will not be able to sustain its nominal output voltage during lamp warm up, thus self-limiting inrush current. You might benefit from measuring the instantanous inrush current when the lamp is first turned on to be sure your relays will not die an early death. Have fun. awright

17th August 2005, 08:18 AM	(permalink)
SkinnyBoy	I have a 9volt, 250VA transformer... hence the question about rectifying it... yes, I was intending to have 4 pairs of wires... why does everyone treat me like an idiot? is it to make yourselves feel better?

17th August 2005, 09:10 AM	(permalink)
SkinnyBoy	if you don't like it, dont reply... seems simple to me... I haven't broken any forum rules here...

17th August 2005, 09:22 AM	(permalink)
Someone Electro	There are rules on abusing members: ----------------------------------------------------------------------------------- .... No abuse or slang to be used! Please be friendly toward any other member of this forum. We do not tolerate any type of abuse or bad language on the board so please refrain from using it. If you are caught your posts will be removed and your account instantly disabled and banned. ... ------------------------------------------------------------------------------------ Ok if you dont want help i wont help you ! __________________ Il give you shocking experience.