wrote in message
...

Unfortunately, switch mode regulators often introduce noise that
affects other more important things on a boat.

A well-designed SMPS does not introduce noise. But it will increase cost of
course.....

Meindert

On Wed, 27 May 2009 08:57:01 +0200, "Meindert Sprang"
wrote:

wrote in message
.. .

Unfortunately, switch mode regulators often introduce noise that
affects other more important things on a boat.

A well-designed SMPS does not introduce noise. But it will increase cost of
course.....

Meindert


Tiny point of use switch mode power supplies, as used for LED
lighting, are often noisy. More often than not.

In article ,
"Meindert Sprang" wrote:

wrote in message
...

Unfortunately, switch mode regulators often introduce noise that
affects other more important things on a boat.

A well-designed SMPS does not introduce noise. But it will increase cost of
course.....

Meindert

Åbsolutly, to keep the noise down, all you got to do is round of the
corners of those square pulses, just a bit.... doesn't hurt the
Regulation a bit.....

--
Bruce in alaska
add path after fast to reply

"Meindert Sprang" wrote in
:

wrote in message
...

Unfortunately, switch mode regulators often introduce noise that
affects other more important things on a boat.

A well-designed SMPS does not introduce noise. But it will increase
cost of course.....

Meindert




Yeah, but what these cheapskates will pay for doesn't even have a .01 cap
across the power bus.....

How do they live with 50AH house batteries??....(c;]


--
-----
Larry

If a man goes way out into the woods all alone and says something,
is it still wrong, even though no woman hears him?

"Larry" wrote in message
...
Yeah, but what these cheapskates will pay for doesn't even have a .01 cap
across the power bus.....

Not to mention a decent common mode filter at both ends....

Meindert

On Thu, 28 May 2009 08:14:11 +0200, "Meindert Sprang"
wrote:

"Larry" wrote in message
.. .
Yeah, but what these cheapskates will pay for doesn't even have a .01 cap
across the power bus.....

Not to mention a decent common mode filter at both ends....

Meindert


Umm... We are talking about point-of-use power supplies. One at each
LED fixture. It must be physically tiny, and not add exponentially to
the cost of the lamp. Noise is a COMMON issue with LED lighting on
boats.

wrote in :

On Thu, 28 May 2009 08:14:11 +0200, "Meindert Sprang"
wrote:

"Larry" wrote in message
. ..
Yeah, but what these cheapskates will pay for doesn't even have a
.01 cap across the power bus.....

Not to mention a decent common mode filter at both ends....

Meindert


Umm... We are talking about point-of-use power supplies. One at each
LED fixture. It must be physically tiny, and not add exponentially to
the cost of the lamp. Noise is a COMMON issue with LED lighting on
boats.



The noise comes because the lighting is hooked to a big antenna system
called "boat wiring" in a plastic box that can't be shielded or
grounded...unfortunately.



--
-----
Larry

If a man goes way out into the woods all alone and says something,
is it still wrong, even though no woman hears him?

On Fri, 29 May 2009 01:18:39 +0000, Larry wrote:

wrote in :

On Thu, 28 May 2009 08:14:11 +0200, "Meindert Sprang"
wrote:

"Larry" wrote in message
...
Yeah, but what these cheapskates will pay for doesn't even have a
.01 cap across the power bus.....

Not to mention a decent common mode filter at both ends....

Meindert


Umm... We are talking about point-of-use power supplies. One at each
LED fixture. It must be physically tiny, and not add exponentially to
the cost of the lamp. Noise is a COMMON issue with LED lighting on
boats.



The noise comes because the lighting is hooked to a big antenna system
called "boat wiring" in a plastic box that can't be shielded or
grounded...unfortunately.

There have also been problems confirmed where the switch mode
regulators in some rather expensive LED anchor lights were radiating
directly into the VHF antenna.

"Meindert Sprang" wrote in
:

"Larry" wrote in message
...
Yeah, but what these cheapskates will pay for doesn't even have a .01
cap across the power bus.....

Not to mention a decent common mode filter at both ends....

Meindert




Geez, you'd think NMEA manufacturers were using balanced lines, not
grounding one of them....(c;]



--
-----
Larry

If a man goes way out into the woods all alone and says something,
is it still wrong, even though no woman hears him?

"Larry" wrote in message
...

Geez, you'd think NMEA manufacturers were using balanced lines, not
grounding one of them....(c;]

Decent manufacturers do, in fact.

Meindert