[ARC5] externally generated noise from switching controllers.

[Leslie Smith]

Hello Michael,
The company I work for, Poolstore International, makes and sells waterproof (submersible) pool lighting.  The poolstore lights consist of a series parallel circuit of (about 48 or 51 LEDs).  Three LEDs are connected in series with a limiting resistor.  Power comes from a 12V transformer, feeding a bridge rectifier.

Very expensive, but very quiet.

Les


> ----- Original Message -----
> From: "Michael Bittner" <mmab at cox.net>
> To: "Discussion of AN/ARC-5 military radio equipment." <arc5 at mailman.qth.net>, "Bob Macklin" <macklinbob at msn.com>
> Subject: Re: [ARC5] externally generated noise from switching controllers.
> Date: Tue, 8 Jun 2010 14:45:23 -0700
> 
> 
> Supposedly there are light dimmers available that do not generate RFI.
> Anyone know who makes these and where they can be bought?  If I can obtain
> some, I will give them to my neighbors.  Mike, W6MAB
> 
> 
> ----- Original Message -----
> From: "Leslie Smith" <vk2bcu at operamail.com>
> To: "Bob Macklin" <macklinbob at msn.com>; "Discussion of AN/ARC-5 military
> radio equipment." <arc5 at mailman.qth.net>
> Sent: Tuesday, June 08, 2010 1:38 PM
> Subject: [ARC5] externally generated noise from switching controllers.
> 
> 
> > Hello group,
> > I subscribe to a newsletter from NXP semiconductors.
> > The newsletter describes or advertises new products - devices, 
> > chips, application notes.
> >
> >
> > Here is the latest:
> > SSL2103 - SMPS controller IC for dimmable LED lighting
> >
> > This chips is a switching regulator, fed directly from the rectified mains.
> >
> > I ask (we all know the answer):
> > What will happen to your nice quiet RAK and RAL receivers when 
> > these noisy critters are installed in every house in every suburb?
> >
> > I say the noise from a switching LED controller will make a 12K8s 
> > as quiet as the central Australian desert at mid-day. (it's very 
> > quiet in the desert at mid-day).
> >
> > Is there nothing we can do so stop such lunacy on a city-wide scale?
> >
> > Yes, this is off-topic, but it's something of interest to all, I'm certain.
> >
> > Les
> > formerly VK2BCU
> >
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