Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is >better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is >better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
"UFO" <techforce@nospam.gmx.com>wrote:
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is >better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
On Mon, 31 Aug 2026 19:32:36 -0400, "UFO" <techforce@nospam.gmx.com>
wrote:
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is >>better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Why not use a cheap dc/dc converter?
Why not use a potted dc/dc converter?
Or a SIP 3t switcher?
John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics
On Mon, 31 Aug 2026 16:49:42 -0700, john larkin <jl@htigct.com> wrote:
On Mon, 31 Aug 2026 19:32:36 -0400, "UFO" <techforce@nospam.gmx.com>
wrote:
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is >>>better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Why not use a cheap dc/dc converter?
Form. Fit. Function.
RL
I searched Mouser and Digi for one with -6V out, nothing came up.
Dunno what the SIP thing is...?
Why not use a potted dc/dc converter?
Or a SIP 3t switcher?
John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics
On 9/1/26 17:16, UFO wrote:
I searched Mouser and Digi for one with -6V out, nothing came up.
Dunno what the SIP thing is...?
https://www.digikey.com/en/products/detail/recom-power/RP-0506S/7603365
it's isolated so it should be -6 of you connect +Vout to ground
Why not use a potted dc/dc converter?
Or a SIP 3t switcher?
John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics
Hmm, it also has a limited input voltage
so would have to knock down the 12V input to like 5v with a
7805 or somehting?
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is >better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
On Tue, 01 Sep 2026 09:23:29 -0400, legg <legg@nospam.magma.ca> wrote:
On Mon, 31 Aug 2026 16:49:42 -0700, john larkin <jl@htigct.com> wrote:
On Mon, 31 Aug 2026 19:32:36 -0400, "UFO" <techforce@nospam.gmx.com> >>>wrote:
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is
better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Why not use a cheap dc/dc converter?
Form. Fit. Function.
RL
That's creative. Did you invent that?
On 9/1/26 23:00, UFO wrote:
Hmm, it also has a limited input voltage
so would have to knock down the 12V input to like 5v with a
7805 or somehting?
Some only ever see problems, while other see solutions.
On Tue, 01 Sep 2026 09:22:53 -0700, john larkin <jl@htigct.com> wrote:
On Tue, 01 Sep 2026 09:23:29 -0400, legg <legg@nospam.magma.ca> wrote:
On Mon, 31 Aug 2026 16:49:42 -0700, john larkin <jl@htigct.com> wrote:
On Mon, 31 Aug 2026 19:32:36 -0400, "UFO" <techforce@nospam.gmx.com> >>>>wrote:
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is
better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Why not use a cheap dc/dc converter?
Form. Fit. Function.
RL
That's creative. Did you invent that?
It's the three Rs of engineering.
Wasting creative effort on something that won't 'do' is
a crime - particularly if it wastes everyone else's, in
the process.
RL
On Wed, 02 Sep 2026 09:02:58 -0400, legg <legg@nospam.magma.ca> wrote:
On Tue, 01 Sep 2026 09:22:53 -0700, john larkin <jl@htigct.com> wrote:
On Tue, 01 Sep 2026 09:23:29 -0400, legg <legg@nospam.magma.ca> wrote:
On Mon, 31 Aug 2026 16:49:42 -0700, john larkin <jl@htigct.com> wrote: >>>>
On Mon, 31 Aug 2026 19:32:36 -0400, "UFO" <techforce@nospam.gmx.com> >>>>> wrote:
Anyone use this before?
I registered but it seems sorta hard to get the handle on.
Do they source the components for you via mouser / Digi-key
and have the board made in China?
This is the board I'd like to try and make:
https://www.egloff.eu/index.php?option=com_content&view=article&id=23:alc-problem-on-ts850&catid=16&Itemid=140&lang=en
Tho there are versions out there using a 555 or other IC, which probably is
better....and fine
as long as it puts out the -6V for the ALC.
A site in Italy has done this but wont sell to the US anymore.
Why not use a cheap dc/dc converter?
Form. Fit. Function.
RL
That's creative. Did you invent that?
It's the three Rs of engineering.
Sounded like three Fs to me.
Wasting creative effort on something that won't 'do' is
a crime - particularly if it wastes everyone else's, in
the process.
There's not much creative about buying a potted dc/dc converter. They
just work.
A site in Italy has done this but wont sell to the US anymore.
On 3/09/2026 12:45 am, john larkin wrote:
There's not much creative about buying a potted dc/dc converter. They
just work.
Sometimes they don't. Early on, many of them were too noisy.
Bill Sloman <bill.sloman@ieee.org> writes:
On 3/09/2026 12:45 am, john larkin wrote:
There's not much creative about buying a potted dc/dc converter. They
just work.
Sometimes they don't. Early on, many of them were too noisy.
I saw a video from an Argentine EE yesterday that complained that a lot
of the off-the-shelf dc/dc converter boards she?d tried were problematic
in many ways:
* noisy (140mV ripple),
* adjustable with potentiometers vulnerable to vibration in industrial
environments,
* badly laid out, creating
* EMI problems and
* safety problems from inadequte trace clearance,
* built with counterfeit chips, and
* inadequately heatsinked.
Basically though she was talking about boards targeted at hobbyists.
None of the ones she showed were potted. But here in Argentina we have
to take what we can get.
The video is mostly talking-head filler with still images, so I think it >would have been better as a blog post: ><https://www.youtube.com/watch?v=7A3c34Nn_Ic>
But possibly the real intent was to convince customers that it?s worth
paying her to lay out an SMPS as part of the boards she?s designing for
them.
Kragen
Kragen Javier Sitaker <kragen@canonical.org>wrote:
Bill Sloman <bill.sloman@ieee.org> writes:
On 3/09/2026 12:45 am, john larkin wrote:
There's not much creative about buying a potted dc/dc converter. They
just work.
Sometimes they don't. Early on, many of them were too noisy.
I saw a video from an Argentine EE yesterday that complained that a lot
of the off-the-shelf dc/dc converter boards she?d tried were problematic
in many ways:
* noisy (140mV ripple),
* adjustable with potentiometers vulnerable to vibration in industrial
environments,
* badly laid out, creating
* EMI problems and
* safety problems from inadequte trace clearance,
* built with counterfeit chips, and
* inadequately heatsinked.
Basically though she was talking about boards targeted at hobbyists.
None of the ones she showed were potted. But here in Argentina we have
to take what we can get.
The video is mostly talking-head filler with still images, so I think it >would have been better as a blog post: ><https://www.youtube.com/watch?v=7A3c34Nn_Ic>
But possibly the real intent was to convince customers that it?s worth
paying her to lay out an SMPS as part of the boards she?s designing for
them.
Kragen
Take a look at UCC33421. It's part of the new generation of isolated converters. I did some testing and it's not bad.
I need isolated power to run a high-side GaN fet gate driver. I'll be
testing that soon.
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