W
Winfield Hill
Guest
John Larkin wrote...
What is that???
--
Thanks,
- Win
What is that???
--
Thanks,
- Win
Navigation
Install the app
How to install the app on iOS
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
More options
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
C
Cursitor Doom
Guest
On Sun, 07 Jan 2018 09:37:56 -0800, Winfield Hill wrote:
Looks like a home made attempt at a non-inductive wire-wound power
resistor?
--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
John Larkin wrote...
https://www.dropbox.com/s/c40vtp0zmfohmx8/candy2.jpg?raw=1
What is that???
Looks like a home made attempt at a non-inductive wire-wound power
resistor?
--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
J
John Larkin
Guest
On Sun, 7 Jan 2018 18:49:49 -0000 (UTC), Cursitor Doom
<curd@notformail.com> wrote:
Yes. It's manganin wire, my home-made non-inductive low-TC pulse-power
load for NMR gradient drivers.
--
John Larkin Highland Technology, Inc
lunatic fringe electronics
<curd@notformail.com> wrote:
On Sun, 07 Jan 2018 09:37:56 -0800, Winfield Hill wrote:
John Larkin wrote...
https://www.dropbox.com/s/c40vtp0zmfohmx8/candy2.jpg?raw=1
What is that???
Looks like a home made attempt at a non-inductive wire-wound power
resistor?
Yes. It's manganin wire, my home-made non-inductive low-TC pulse-power
load for NMR gradient drivers.
--
John Larkin Highland Technology, Inc
lunatic fringe electronics
W
Winfield Hill
Guest
John Larkin wrote...
I have about 300 files in my computer concerning
coupled inductors, they're all the rage these days.
Most providers, and there are many, use the term
coupled inductor. Your DRQ supplier, SRF and a
few others call them "dual winding." TI and other
app note writers call them coupled inductors. Both
Coilcraft and Coilmaster, who have piles of offerings,
call them coupled inductors. Ditto Vishay and Wurth.
Published peer-reviewed papers say coupled inductors.
If you want to search for them, coupled inductors is
the phrase. Octopart comes up with about 1500 parts
that way, but only 184 searching for dual winding.
Of course, they're all the same bifilar wound stuff,
but that search term gets zero hits at Octopart. And
the O.P's title, bifilar inductor, gets only 5 hits.
--
Thanks,
- Win
Winfield Hill wrote:
John Larkin wrote...
You can do fun switcher tricks with a dual inductor.
Coupled inductor, John. Coupled is the word to use.
I ignore the Word Police.
I have about 300 files in my computer concerning
coupled inductors, they're all the rage these days.
Most providers, and there are many, use the term
coupled inductor. Your DRQ supplier, SRF and a
few others call them "dual winding." TI and other
app note writers call them coupled inductors. Both
Coilcraft and Coilmaster, who have piles of offerings,
call them coupled inductors. Ditto Vishay and Wurth.
Published peer-reviewed papers say coupled inductors.
If you want to search for them, coupled inductors is
the phrase. Octopart comes up with about 1500 parts
that way, but only 184 searching for dual winding.
Of course, they're all the same bifilar wound stuff,
but that search term gets zero hits at Octopart. And
the O.P's title, bifilar inductor, gets only 5 hits.
--
Thanks,
- Win
J
John Larkin
Guest
On 7 Jan 2018 16:34:21 -0800, Winfield Hill <hill@rowland.harvard.edu>
wrote:
Digikey lists the DRQ series under category "Arrays, Signal
Transformers" which is a bit strange.
The Eaton data sheet calls them "Dual winding, high power density,
shielded drum core power inductors"
Bourns calls the SRF series "Dual-winding shielded power inductors"
We stock them in the "transformers" category.
--
John Larkin Highland Technology, Inc
lunatic fringe electronics
wrote:
John Larkin wrote...
Winfield Hill wrote:
John Larkin wrote...
You can do fun switcher tricks with a dual inductor.
Coupled inductor, John. Coupled is the word to use.
I ignore the Word Police.
I have about 300 files in my computer concerning
coupled inductors, they're all the rage these days.
Most providers, and there are many, use the term
coupled inductor. Your DRQ supplier, SRF and a
few others call them "dual winding." TI and other
app note writers call them coupled inductors. Both
Coilcraft and Coilmaster, who have piles of offerings,
call them coupled inductors. Ditto Vishay and Wurth.
Published peer-reviewed papers say coupled inductors.
If you want to search for them, coupled inductors is
the phrase. Octopart comes up with about 1500 parts
that way, but only 184 searching for dual winding.
Of course, they're all the same bifilar wound stuff,
but that search term gets zero hits at Octopart. And
the O.P's title, bifilar inductor, gets only 5 hits.
Digikey lists the DRQ series under category "Arrays, Signal
Transformers" which is a bit strange.
The Eaton data sheet calls them "Dual winding, high power density,
shielded drum core power inductors"
Bourns calls the SRF series "Dual-winding shielded power inductors"
We stock them in the "transformers" category.
--
John Larkin Highland Technology, Inc
lunatic fringe electronics
W
Winfield Hill
Guest
John Larkin wrote...
Hah, three sets off. I know Eaton and Bourns are in
left field about this, even though I like the Bourns
offerings. Eaton's series has lots of nice physical
sizes. I've long avoided calling them transformers,
as transformers generally have cores without gaps,
and the magnetizing energy stored in the primary's
inductance is a pain, rather than part of the work
underway. A complete contrast to coupled inductors,
where the energy stored in the inductance is a main
part of the idea, and the coupled winding grabs it
for the purpose at hand.
--
Thanks,
- Win
Winfield Hill wrote:
John Larkin wrote...
Winfield Hill wrote:
John Larkin wrote...
You can do fun switcher tricks with a dual inductor.
Coupled inductor, John. Coupled is the word to use.
I ignore the Word Police.
I have about 300 files in my computer concerning
coupled inductors, they're all the rage these days.
Most providers, and there are many, use the term
coupled inductor. Your DRQ supplier, SRF and a
few others call them "dual winding." TI and other
app note writers call them coupled inductors. Both
Coilcraft and Coilmaster, who have piles of offerings,
call them coupled inductors. Ditto Vishay and Wurth.
Published peer-reviewed papers say coupled inductors.
If you want to search for them, coupled inductors is
the phrase. Octopart comes up with about 1500 parts
that way, but only 184 searching for dual winding.
Of course, they're all the same bifilar wound stuff,
but that search term gets zero hits at Octopart. And
the O.P's title, bifilar inductor, gets only 5 hits.
Digikey lists the DRQ series under category "Arrays,
Signal Transformers" which is a bit strange.
The Eaton data sheet calls them "Dual winding, high
power density, shielded drum core power inductors"
Bourns calls the SRF series "Dual-winding shielded
power inductors"
We stock them in the "transformers" category.
Hah, three sets off. I know Eaton and Bourns are in
left field about this, even though I like the Bourns
offerings. Eaton's series has lots of nice physical
sizes. I've long avoided calling them transformers,
as transformers generally have cores without gaps,
and the magnetizing energy stored in the primary's
inductance is a pain, rather than part of the work
underway. A complete contrast to coupled inductors,
where the energy stored in the inductance is a main
part of the idea, and the coupled winding grabs it
for the purpose at hand.
--
Thanks,
- Win
J
John Larkin
Guest
On 8 Jan 2018 07:08:39 -0800, Winfield Hill <hill@rowland.harvard.edu>
wrote:
What about a flyback transformer? They are usually gapped.
Wound magnetic things, and their circuits, are hard to describe in
words, so I don't worry much over it. I certainly don't want
somebody's words to tell me what I can/can't do with a part.
I like "dual inductor" because it tells me there are two windings.
Some things have three or more.
--
John Larkin Highland Technology, Inc
lunatic fringe electronics
wrote:
John Larkin wrote...
Winfield Hill wrote:
John Larkin wrote...
Winfield Hill wrote:
John Larkin wrote...
You can do fun switcher tricks with a dual inductor.
Coupled inductor, John. Coupled is the word to use.
I ignore the Word Police.
I have about 300 files in my computer concerning
coupled inductors, they're all the rage these days.
Most providers, and there are many, use the term
coupled inductor. Your DRQ supplier, SRF and a
few others call them "dual winding." TI and other
app note writers call them coupled inductors. Both
Coilcraft and Coilmaster, who have piles of offerings,
call them coupled inductors. Ditto Vishay and Wurth.
Published peer-reviewed papers say coupled inductors.
If you want to search for them, coupled inductors is
the phrase. Octopart comes up with about 1500 parts
that way, but only 184 searching for dual winding.
Of course, they're all the same bifilar wound stuff,
but that search term gets zero hits at Octopart. And
the O.P's title, bifilar inductor, gets only 5 hits.
Digikey lists the DRQ series under category "Arrays,
Signal Transformers" which is a bit strange.
The Eaton data sheet calls them "Dual winding, high
power density, shielded drum core power inductors"
Bourns calls the SRF series "Dual-winding shielded
power inductors"
We stock them in the "transformers" category.
Hah, three sets off. I know Eaton and Bourns are in
left field about this, even though I like the Bourns
offerings. Eaton's series has lots of nice physical
sizes. I've long avoided calling them transformers,
as transformers generally have cores without gaps,
and the magnetizing energy stored in the primary's
inductance is a pain, rather than part of the work
underway.
What about a flyback transformer? They are usually gapped.
A complete contrast to coupled inductors,
where the energy stored in the inductance is a main
part of the idea, and the coupled winding grabs it
for the purpose at hand.
Wound magnetic things, and their circuits, are hard to describe in
words, so I don't worry much over it. I certainly don't want
somebody's words to tell me what I can/can't do with a part.
I like "dual inductor" because it tells me there are two windings.
Some things have three or more.
--
John Larkin Highland Technology, Inc
lunatic fringe electronics
W
Winfield Hill
Guest
John Larkin wrote...
Hah, Well, I think we ran this topic into the ground.
It started when somebody typed sci.electronics.basics
w/o the s. Sheesh!
--
Thanks,
- Win
Winfield Hill wrote:
John Larkin wrote...
Winfield Hill wrote:
John Larkin wrote...
Winfield Hill wrote:
John Larkin wrote...
You can do fun switcher tricks with a dual inductor.
Coupled inductor, John. Coupled is the word to use.
I ignore the Word Police.
I have about 300 files in my computer concerning
coupled inductors, they're all the rage these days.
Most providers, and there are many, use the term
coupled inductor. Your DRQ supplier, SRF and a
few others call them "dual winding." TI and other
app note writers call them coupled inductors. Both
Coilcraft and Coilmaster, who have piles of offerings,
call them coupled inductors. Ditto Vishay and Wurth.
Published peer-reviewed papers say coupled inductors.
If you want to search for them, coupled inductors is
the phrase. Octopart comes up with about 1500 parts
that way, but only 184 searching for dual winding.
Of course, they're all the same bifilar wound stuff,
but that search term gets zero hits at Octopart. And
the O.P's title, bifilar inductor, gets only 5 hits.
Digikey lists the DRQ series under category "Arrays,
Signal Transformers" which is a bit strange.
The Eaton data sheet calls them "Dual winding, high
power density, shielded drum core power inductors"
Bourns calls the SRF series "Dual-winding shielded
power inductors"
We stock them in the "transformers" category.
Hah, three sets off. I know Eaton and Bourns are in
left field about this, even though I like the Bourns
offerings. Eaton's series has lots of nice physical
sizes. I've long avoided calling them transformers,
as transformers generally have cores without gaps,
and the magnetizing energy stored in the primary's
inductance is a pain, rather than part of the work
underway.
What about a flyback transformer? They are usually gapped.
A complete contrast to coupled inductors,
where the energy stored in the inductance is a main
part of the idea, and the coupled winding grabs it
for the purpose at hand.
Wound magnetic things, and their circuits, are hard to describe in
words, so I don't worry much over it. I certainly don't want
somebody's words to tell me what I can/can't do with a part.
I like "dual inductor" because it tells me there are two windings.
Some things have three or more.
Hah, Well, I think we ran this topic into the ground.
It started when somebody typed sci.electronics.basics
w/o the s. Sheesh!
--
Thanks,
- Win