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.
On Sat, 04 Mar 2023 16:05:37 -0000, \"Commander Kinsey\"
CK1@nospam.com> wrote:
I was actually talking about a stepup transformer. 120V to 6000V. Yes it\'s American, I got it cheap. To avoid finding a 6000V diode, I thought I could use a 120V diode. From all the answers it appears I was wrong to assume because the current is going one way through the primary it must be going the same way through the secondary. Actually the DC component is lost and the AC is passed, so I just get squint AC.
Trying to make a high voltage DC supply? You can get 1KV 1 amp diodes
for a few cents each. Those can be used in series.
When I was a kid, I used old neon sign transformers and 1B3 rectifier
tubes to make high voltage DC supplies. I couldn\'t afford a Variac so
adjusted the filament voltage to regulate the output voltage. I used a
D-cell battery and a rheostat, and somehow I\'m still alive.
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence and repair yourself.
On Sat, 4 Mar 2023 18:09:09 +0100, Peeler <trolltrap@valid.invalid
wrote:
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence
On Sun, 05 Mar 2023 04:54:53 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
On Sat, 4 Mar 2023 18:09:09 +0100, Peeler <trolltrap@valid.invalid
wrote:
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence
That is long gone.
and repair yourself.
Its always been irrepairable.
Yeah, most people, after they get into a nasty loop, can never break
out.
Hunching over a screen and mousing all day is bad for the body and
soul. I make myself get some exercize every day (just got soaked and
froze) and that helps.
https://www.health.harvard.edu/mind-and-mood/exercise-is-an-all-natural-treatment-to-fight-depression
On Sun, 05 Mar 2023 05:55:29 +1100, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Sun, 05 Mar 2023 04:54:53 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
On Sat, 4 Mar 2023 18:09:09 +0100, Peeler <trolltrap@valid.invalid
wrote:
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence
That is long gone.
and repair yourself.
Its always been irrepairable.
Yeah, most people, after they get into a nasty loop, can never break
out.
Hunching over a screen and mousing all day is bad for the body and
soul. I make myself get some exercize every day (just got soaked and
froze) and that helps.
https://www.health.harvard.edu/mind-and-mood/exercise-is-an-all-natural-treatment-to-fight-depression
On 3/4/2023 11:44 AM, John Larkin wrote:
On Sun, 05 Mar 2023 05:55:29 +1100, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Sun, 05 Mar 2023 04:54:53 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
On Sat, 4 Mar 2023 18:09:09 +0100, Peeler <trolltrap@valid.invalid
wrote:
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence
That is long gone.
and repair yourself.
Its always been irrepairable.
Yeah, most people, after they get into a nasty loop, can never break
out.
Hunching over a screen and mousing all day is bad for the body and
soul. I make myself get some exercize every day (just got soaked and
froze) and that helps.
https://www.health.harvard.edu/mind-and-mood/exercise-is-an-all-natural-treatment-to-fight-depression
You could exercise restraint, and stop feeding the troll.
On Sun, 05 Mar 2023 05:55:29 +1100, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Sun, 05 Mar 2023 04:54:53 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
On Sat, 4 Mar 2023 18:09:09 +0100, Peeler <trolltrap@valid.invalid
wrote:
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously
brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence
That is long gone.
and repair yourself.
Its always been irrepairable.
Yeah, most people, after they get into a nasty loop, can never break
out.
Hunching over a screen and mousing all day is bad for the body and
soul.
I make myself get some exercize every day (just got soaked and
froze) and that helps.
https://www.health.harvard.edu/mind-and-mood/exercise-is-an-all-natural-treatment-to-fight-depression
On Sat, 4 Mar 2023 12:08:15 -0800, Bob F <bobnospam@gmail.com> wrote:
On 3/4/2023 11:44 AM, John Larkin wrote:
On Sun, 05 Mar 2023 05:55:29 +1100, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Sun, 05 Mar 2023 04:54:53 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
On Sat, 4 Mar 2023 18:09:09 +0100, Peeler <trolltrap@valid.invalid
wrote:
On Sat, 04 Mar 2023 08:26:50 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped. So says absurd things about the topic,
just to be contradictory.
Just stop feeding the troll (additionally you might also stop being a
typical senile smartass) and everything will be all right!
I\'m all right. You are clearly damaged.
Use your intelligence
That is long gone.
and repair yourself.
Its always been irrepairable.
Yeah, most people, after they get into a nasty loop, can never break
out.
Hunching over a screen and mousing all day is bad for the body and
soul. I make myself get some exercize every day (just got soaked and
froze) and that helps.
https://www.health.harvard.edu/mind-and-mood/exercise-is-an-all-natural-treatment-to-fight-depression
You could exercise restraint, and stop feeding the troll.
It\'s only a newsgroup.
Do you design electronics?
On Sat, 4 Mar 2023 08:59:24 +0100, Peeler <trol...@valid.invalid
wrote:
On Fri, 03 Mar 2023 19:04:07 -0800, John Larkin, another obviously brain
dead, troll-feeding senile asshole, blathered:
I thought current always flowed the same way in primary and secondary..... You know, phases and all that.
Assume a loaded bifilar transformer, both dots up, and draw the
winding currents.
The reason that loading a transformer doesn\'t make it saturate is
because the primary excitation flux and the flux from the secondary
load current cancel. Loading a transformer reduces the core flux.
The reason why the trolling attention whore will keep asking ever more
retarded \"questions\" is because you troll-feeding senile assholes will keep
answering them.
The prime function of SED is to discuss electronics design, and
another is to help people who have questions or don\'t understand
everything or who want to play with ideas.
If you stop being mindlessly nasty and think about electronics, and
try to be helpful, you\'ll be better off. But you are trapped in
meanness and can\'t break out.
Sloman is similarly trapped.
So says absurd things about the topic, just to be contradictory.
On Sat, 4 Mar 2023 12:16:59 +0000, Max Demian <max_d...@bigfoot.com> wrote:
On 04/03/2023 01:23, Commander Kinsey wrote:
On Sun, 26 Feb 2023 16:13:19 -0000, John Larkin <jla...@highlandsnipmetechnology.com> wrote:
On Sun, 26 Feb 2023 09:45:26 -0000, \"Commander Kinsey\" <C...@nospam.com> wrote:
Or should learn more. Spice is a good tool for things like this. As
Mike E says, the main function of LT Spice is to train your instincts.
On Saturday, March 4, 2023 at 2:04:20?PM UTC+11, John Larkin wrote:
On Sat, 04 Mar 2023 01:23:17 -0000, \"Commander Kinsey\"
C...@nospam.com> wrote:
On Sun, 26 Feb 2023 16:13:19 -0000, John Larkin <jla...@highlandsnipmetechnology.com> wrote:
On Sun, 26 Feb 2023 09:45:26 -0000, \"Commander Kinsey\"
C...@nospam.com> wrote:
Can I put a diode BEFORE a step up transformer so I can use a lower voltage diode for half wave rectification?
Ah. Humor. Thanks for the laugh.
I thought current always flowed the same way in primary and secondary.... You know, phases and all that.
Assume a loaded bifilar transformer, both dots up, and draw the
winding currents.
The reason that loading a transformer doesn\'t make it saturate is
because the primary excitation flux and the flux from the secondary
load current cancel. Loading a transformer reduces the core flux.
No exactly. The core flux has to keep increasing to generate the voltage the drives the current into the external load. Because you drive transformers with AC the voltage eventually reverses, ideally before you saturate the core.
On Fri, 3 Mar 2023 20:13:46 -0800 (PST), Anthony William Sloman
bill....@ieee.org> wrote:
On Saturday, March 4, 2023 at 2:04:20?PM UTC+11, John Larkin wrote:
On Sat, 04 Mar 2023 01:23:17 -0000, \"Commander Kinsey\"
C...@nospam.com> wrote:
On Sun, 26 Feb 2023 16:13:19 -0000, John Larkin <jla...@highlandsnipmetechnology.com> wrote:
On Sun, 26 Feb 2023 09:45:26 -0000, \"Commander Kinsey\"
C...@nospam.com> wrote:
Can I put a diode BEFORE a step up transformer so I can use a lower voltage diode for half wave rectification?
Ah. Humor. Thanks for the laugh.
I thought current always flowed the same way in primary and secondary..... You know, phases and all that.
Assume a loaded bifilar transformer, both dots up, and draw the
winding currents.
The reason that loading a transformer doesn\'t make it saturate is
because the primary excitation flux and the flux from the secondary
load current cancel. Loading a transformer reduces the core flux.
Not exactly. The core flux has to keep increasing to generate the voltage the drives the current into the external load. Because you drive transformers with AC the voltage eventually reverses, ideally before you saturate the core.
Bill, I think this assumes that the voltage is regulated with feedback.
Driving the transformer with, say, just grid voltage would do what JL
is talking about because the IR drop when loaded, reduces the
volt-seconds imposed on the core which is what causes saturation.
On Sun, 05 Mar 2023 06:44:41 +1100, John Larkin
jlarkin@highlandsnipmetechnology.com> wrote:
Hunching over a screen and mousing all day is bad for the body and
soul.
Not convinced.
I make myself get some exercize every day (just got soaked and
froze) and that helps.
https://www.health.harvard.edu/mind-and-mood/exercise-is-an-all-natural-treatment-to-fight-depression
I don\'t get depression.
Not totally. IIRC correctly the current in the secondary is \'backwards\';On 04/03/2023 16:05, Commander Kinsey wrote:
I was actually talking about a stepup transformer. 120V to 6000V.
Yes it\'s American, I got it cheap. To avoid finding a 6000V diode, I
thought I could use a 120V diode. From all the answers it appears I
was wrong to assume because the current is going one way through the
primary it must be going the same way through the secondary. Actually
the DC component is lost and the AC is passed, so I just get squint AC.
The penny drops.