Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: Allan's Transformer as a Generator  (Read 25756 times)

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #45 on: September 15, 2020, 06:07:51 AM »
Hi Alan,
I have gotten part of the stuff I need for the project, check the pic, I have also added the diagram of how I plan to do it, please review it and let me know if I have to modify something else.

For that core I bought 1.5 mm wire, I'm waiting for it to arrive this week and after your confirmation then I'll start.
Since this core is not very big, it is only to start this as a mini project. (as you can see), Then after that the Big one God willing.

Hi Leonelogb,

Thanks for your reply it keeps me motivated. My thinking has gone off a bit at the moment, could be the weather. I went shopping yesterday as well.

It is looking good.
Not exact but your getting the right idea.  Electronics can be added later and then the smaller transformers can be excluded.

The two smaller 100turns x 100turns would need to have 15% difference approximately. The one I have done is 45turns 1.5mm and 56turns 0.8mm. The smaller wire is good for 2 amps. The 56 turns should be attached to the 200 turns and the 45 turns attached to the 200t + 25t.
The 1.5mm wire should do 8 amps and if it achieves 240volt = 2000watt.

I have wound the smaller windings all four that you show on one former, 45t 1.5mm, 56t 0.8mm and 45t 1.5mm, 56t 0.8mm.
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.
This transformer is to keep the currents going in opposite directions in transformer action, through the larger 225turns of the other coils as the extra flux is added.

Two 12 volt 10 Amp Hour batteries could replace the small isolated supplies in the short term. They would actually need a feed back circuit to a regulator to decrease or increase the output to supply the correct load voltage. 

No worries at this stage the connections are easy to change. A formula is required but it is experience that makes the difference at the moment. Some thinking needs to be done.

A capacitor and some way of putting a 50 to 70volt timed pulse on the top link between the 200 turns + 25t and 200 + 25 turns windings.
While the current flows through the windings in a circle the extra pulse of  0.2A through the 200 turns + 25 turns and the 45 turns on the other transformer will dramatically increase the output.

In the usual transformer, the flux is dampened enough by load current to require about 10% over wind of the output windings. Resonance does not need much input to maintain oscillations and in theory very little power would be required to make up what the load current changes in the core flux.
It is just a matter of gently adding some flux into the core using transformer action.

The set up may be a bit light on iron core but just have to try. If the flux is 4x usual the rate of change is greater and the power increase should be squared.
The current will flow back and forth into the capacitor circuit and the voltage will build when the AT difference modulates the magnetism to maximize current.

Everything is ready to go with what I am building just needs the circuit and two isolated supplies. There are several ways of doing it as usual and it takes a bit of brain power.
Getting it going could help establish the correct turns and core size.
The whole exercise could be calculated out, the formulas are available, but it is about exactly how much extra flux is able to be generated.

All the best,

Allan


leonelogb

  • Full Member
  • ***
  • Posts: 122
Re: Alan's Transformer as a Generator
« Reply #46 on: September 15, 2020, 11:36:33 PM »
 Than you for reply. Check it you answer
 
Hi Leonelogb,

Thanks for your reply it keeps me motivated. My thinking has gone off a bit at the moment, could be the weather. I went shopping yesterday as well.

Quote
Good for you, keep doing the good job!

It is looking good.
Not exact but your getting the right idea.  Electronics can be added later and then the smaller transformers can be excluded.
Quote
I know electronics need to be improved and I'm not sure about the sequence of switching, and that sound wonderful, excluded all the smaller and make just one for those smaller(which is the best core that you advise for this? 

The two smaller 100turns x 100turns would need to have 15% difference approximately. The one I have done is 45turns 1.5mm and 56turns 0.8mm. The smaller wire is good for 2 amps. The 56 turns should be attached to the 200 turns and the 45 turns attached to the 200t + 25t.
The 1.5mm wire should do 8 amps and if it achieves 240volt = 2000watt.
Quote
Excellent explanation and even much better, less turn in the transformer and thank you for clarifying the connection!

I have wound the smaller windings all four that you show on one former, 45t 1.5mm, 56t 0.8mm and 45t 1.5mm, 56t 0.8mm.
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.
This transformer is to keep the currents going in opposite directions in transformer action, through the larger 225turns of the other coils as the extra flux is added.
Quote
My brother excuse my lack of understanding sometimes, but for this step, I would like more or less a photo or a hand drawing, sorry for the inconvenience. Thanks in advance.


Two 12 volt 10 Amp Hour batteries could replace the small isolated supplies in the short term. They would actually need a feed back circuit to a regulator to decrease or increase the output to supply the correct load voltage. 
Quote
I have two battery even bigger I think, about the feed back I have an idea, I'll put it late

No worries at this stage the connections are easy to change. A formula is required but it is experience that makes the difference at the moment. Some thinking needs to be done.
Quote
step by step we get far  ;D

A capacitor and some way of putting a 50 to 70volt timed pulse on the top link between the 200 turns + 25t and 200 + 25 turns windings.
While the current flows through the windings in a circle the extra pulse of  0.2A through the 200 turns + 25 turns and the 45 turns on the other transformer will dramatically increase the output.

Quote
dramatically increase the output. lol. i love those words  ;D

In the usual transformer, the flux is dampened enough by load current to require about 10% over wind of the output windings. Resonance does not need much input to maintain oscillations and in theory very little power would be required to make up what the load current changes in the core flux.
It is just a matter of gently adding some flux into the core using transformer action.

The set up may be a bit light on iron core but just have to try. If the flux is 4x usual the rate of change is greater and the power increase should be squared.
Quote
Yes, you right It's just for start after this, the bigger one God willing
The current will flow back and forth into the capacitor circuit and the voltage will build when the AT difference modulates the magnetism to maximize current.

Everything is ready to go with what I am building just needs the circuit and two isolated supplies. There are several ways of doing it as usual and it takes a bit of brain power.
Quote
I am interested in knowing which is the input sequence in the coils and which is the best switching for doing.
Getting it going could help establish the correct turns and core size.
The whole exercise could be calculated out, the formulas are available, but it is about exactly how much extra flux is able to be generated.

All the best,

Allan

Winter is scorching again!  ;D ;D ;D

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #47 on: September 16, 2020, 02:37:56 AM »
Than you for reply. Check it you answer
 
It is looking good.
Not exact but your getting the right idea.  Electronics can be added later and then the smaller transformers can be excluded.
The two smaller 100turns x 100turns would need to have 15% difference approximately. The one I have done is 45turns 1.5mm and 56turns 0.8mm. The smaller wire is good for 2 amps. The 56 turns should be attached to the 200 turns and the 45 turns attached to the 200t + 25t.
The 1.5mm wire should do 8 amps and if it achieves 240volt = 2000watt.
I have wound the smaller windings all four that you show on one former, 45t 1.5mm, 56t 0.8mm and 45t 1.5mm, 56t 0.8mm.
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.
This transformer is to keep the currents going in opposite directions in transformer action, through the larger 225turns of the other coils as the extra flux is added.

Two 12 volt 10 Amp Hour batteries could replace the small isolated supplies in the short term. They would actually need a feed back circuit to a regulator to decrease or increase the output to supply the correct load voltage. 
No worries at this stage the connections are easy to change. A formula is required but it is experience that makes the difference at the moment. Some thinking needs to be done.
A capacitor and some way of putting a 50 to 70volt timed pulse on the top link between the 200 turns + 25t and 200 + 25 turns windings.
While the current flows through the windings in a circle the extra pulse of  0.2A through the 200 turns + 25 turns and the 45 turns on the other transformer will dramatically increase the output.

In the usual transformer, the flux is dampened enough by load current to require about 10% over wind of the output windings. Resonance does not need much input to maintain oscillations and in theory very little power would be required to make up what the load current changes in the core flux.
It is just a matter of gently adding some flux into the core using transformer action.

The set up may be a bit light on iron core but just have to try. If the flux is 4x usual the rate of change is greater and the power increase should be squared. The current will flow back and forth into the capacitor circuit and the voltage will build when the AT difference modulates the magnetism to maximize current.

Everything is ready to go with what I am building just needs the circuit and two isolated supplies. There are several ways of doing it as usual and it takes a bit of brain power. Getting it going could help establish the correct turns and core size.
The whole exercise could be calculated out, the formulas are available, but it is about exactly how much extra flux is able to be generated.

All the best,

Allan


Winter is scorching again!  ;D ;D ;D

Hi,

It is becoming warmer here as spring approaches, with only brief cold patches, today 14degrees C outside 18 degrees C inside with no heating.
The coldest morning was 5.5 degrees C this year. I live 180M above sea level, 5Km inland from the coastal winds and it is not as cold as the valleys.

quote
I am interested in knowing which is the input sequence in the coils and which is the best switching for doing.
end quote

All that is wrong is that the wires are crossed from one of the inputs (the left) and would reverse the current through the main transformer. The currents need to go in one direction but through the different amp turns in sequence. This will reverse the flux in the core with maximum current, little voltage or opposition. As the flux increases, the to be added Hi voltage pulse will increase the current in one winding only.
The square wave pulses and there numbering are correct other wise.

I have wound the windings all four that you show (100t,100t: 100t,100t) on one former, 45t 1.5mm, 56t 0.8mm and 45t 1.5mm, 56t 0.8mm.
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.
This transformer is to keep the currents going in opposite directions in transformer action, through the larger 225turns of the other coils as the extra flux is added.

Quote
    My brother excuse my lack of understanding sometimes, but for this step, I would like more or less a photo or a hand drawing, sorry for the inconvenience. Thanks in advance.
End quote.

If you are able to find a transformer and deconstruct it, or buy some laminations and formers, best to get more than one then the winding will just fit on a former /bobbin,52mm L x 45mm x 38mm. The former/bobbin should fit the core laminations exact.

Start at one end of the former, leave 120mm approximately, excess before winding on 0.8mm 56turns on the former. Use some tape to hold the wire by sticking it on the bobbin and then the turns will go on over the top to hold the start. Insulate that layer and start the next 0.8mm 56turns insulate that layer.
Start 1.5mm and wind on 45 turns. Insulate between layers and bring end of wire out the opposite end of the start. Insulate.
Start next 1.5mm and wind on 45turns. Bring wire out the opposite end. Insulate.
All the starts should be on one side and all the finish should be on the other for ease of working out the connections.

A hand winder with a counter makes the job a lot easier. A varnish is usually put on the windings, transformer makers use a bath method. Very smelly.
If the transformer windings vibrate the insulation is worn off. I do not bother at this stage but do have a collection of wax that is melted and put on hot.   
 
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.

The photo shows the insulation paper, the former/bobbin, the tape and some laminations.

All the best,

Allan


leonelogb

  • Full Member
  • ***
  • Posts: 122
Re: Alan's Transformer as a Generator
« Reply #48 on: September 16, 2020, 04:08:45 AM »
My Brother...  You are the Best, Thank you so much.  ;D


Hi,

It is becoming warmer here as spring approaches, with only brief cold patches, today 14degrees C outside 18 degrees C inside with no heating.
The coldest morning was 5.5 degrees C this year. I live 180M above sea level, 5Km inland from the coastal winds and it is not as cold as the valleys.

quote
I am interested in knowing which is the input sequence in the coils and which is the best switching for doing.
end quote

All that is wrong is that the wires are crossed from one of the inputs (the left) and would reverse the current through the main transformer. The currents need to go in one direction but through the different amp turns in sequence. This will reverse the flux in the core with maximum current, little voltage or opposition. As the flux increases, the to be added Hi voltage pulse will increase the current in one winding only.
The square wave pulses and there numbering are correct other wise.

I have wound the windings all four that you show (100t,100t: 100t,100t) on one former, 45t 1.5mm, 56t 0.8mm and 45t 1.5mm, 56t 0.8mm.
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.
This transformer is to keep the currents going in opposite directions in transformer action, through the larger 225turns of the other coils as the extra flux is added.

Quote
    My brother excuse my lack of understanding sometimes, but for this step, I would like more or less a photo or a hand drawing, sorry for the inconvenience. Thanks in advance.
End quote.

If you are able to find a transformer and deconstruct it, or buy some laminations and formers, best to get more than one then the winding will just fit on a former /bobbin,52mm L x 45mm x 38mm. The former/bobbin should fit the core laminations exact.

Start at one end of the former, leave 120mm approximately, excess before winding on 0.8mm 56turns on the former. Use some tape to hold the wire by sticking it on the bobbin and then the turns will go on over the top to hold the start. Insulate that layer and start the next 0.8mm 56turns insulate that layer.
Start 1.5mm and wind on 45 turns. Insulate between layers and bring end of wire out the opposite end of the start. Insulate.
Start next 1.5mm and wind on 45turns. Bring wire out the opposite end. Insulate.
All the starts should be on one side and all the finish should be on the other for ease of working out the connections.

A hand winder with a counter makes the job a lot easier. A varnish is usually put on the windings, transformer makers use a bath method. Very smelly.
If the transformer windings vibrate the insulation is worn off. I do not bother at this stage but do have a collection of wax that is melted and put on hot.   
 
They only just fit on a reconstructed 114mm x 95mm x 44mm transformer former/bobbin,52mm x 45mm x 38mm.

The photo shows the insulation paper, the former/bobbin, the tape and some laminations.

All the best,

Allan

leonelogb

  • Full Member
  • ***
  • Posts: 122
Re: Alan's Transformer as a Generator
« Reply #49 on: September 17, 2020, 02:56:24 AM »
Almost ready to start with the input transformers..  :)
check it

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #50 on: September 17, 2020, 04:22:39 AM »
Almost ready to start with the input transformers..  :)
check it

Hi,

Should be able to do something with that. The 1.5mm wire is for the power I/P, O/P circuits only. 1.5mm wire can do about 16amps but wound in a coil there is heat build up and this is where the problem is. It may do 8 amps continuously with few turns and layers.

Do you have some smaller wire for the control circuits? This is essential because the rule of thumb is a 40% copper fill of the space.

The core area is usually in the calculation to size the power output etc but more magnetism could change things a bit. The strength of the field and flux density is usually 1.2Tesla but can go to 1.7Tesla, but the intention is to drive a bit further than that, passed the usual point of saturation. The dampening held at 15% difference in turns seems to hold the rate of increase of the flux to an acceptable amount. The current flowing in a circle pretensions and allows more current, 0.4A max to flow through the Hi volt pulse circuit.   

A battery charger is being worked out and built at the moment to get the mind in the right spot.
I would like to build a charging system that could be easily carried at some stage as well.

The is a little nervousness and that there will be no mistakes. Check twice cut once.

There is a lot of work to do, one step at a time.

Allan
   

leonelogb

  • Full Member
  • ***
  • Posts: 122
Re: Alan's Transformer as a Generator
« Reply #51 on: September 18, 2020, 01:02:24 AM »
Quote

Should be able to do something with that. The 1.5mm wire is for the power I/P, O/P circuits only. 1.5 mm wire can do about 16amps but wound in a coil there is heat build up and this is where the problem is. It may do 8 amps continuously with few turns and layers.

Yes, 1.5 mm will be use for power I/P, O/P(200+25 and 200+25 on other transformer) and I'll use 1.5 mm for two coil of 45 turns and I want to use 0.8 for two coil of 56 turns on one transformer, but so far I have to buy, I do not have (just 24 awg)
 
Quote
Do you have some smaller wire for the control circuits? This is essential because the rule of thumb is a 40% copper fill of the space.
So far just 24 awg (0.51 mm)

The core area is usually in the calculation to size the power output etc but more magnetism could change things a bit. The strength of the field and flux density is usually 1.2Tesla but can go to 1.7Tesla, but the intention is to drive a bit further than that, passed the usual point of saturation. The dampening held at 15% difference in turns seems to hold the rate of increase of the flux to an acceptable amount. The current flowing in a circle pretensions and allows more current, 0.4A max to flow through the Hi volt pulse circuit.   

Quote
A battery charger is being worked out and built at the moment to get the mind in the right spot.
I would like to build a charging system that could be easily carried at some stage as well.

I have a 120v ac voltage regulator, It go from 0-180 ac  so it would not be difficult to put and capacitor with diode bridge, I think it will work?

Quote
The is a little nervousness and that there will be no mistakes. Check twice cut once.

 ;D ;D ;D This project is Alan's Transformer as a Generator
I should not do anything without your confirmation before  :)
Quote
will be no mistakes
lol
that's the hardest part but; you right
Check twice cut once  8)

Question:
Do I have to make the small transformer for the input winding wound on a core for 12 volts 74 turns? I mean; input 70+74 turns an output the same 70+74 with the center tapped?

Thanks!


   

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #52 on: September 18, 2020, 07:58:19 AM »
Yes, 1.5 mm will be use for power I/P, O/P(200+25 and 200+25 on other transformer) and I'll use 1.5 mm for two coil of 45 turns and I want to use 0.8 for two coil of 56 turns on one transformer, but so far I have to buy, I do not have (just 24 awg)
 So far just 24 awg (0.51 mm)

The core area is usually in the calculation to size the power output etc but more magnetism could change things a bit. The strength of the field and flux density is usually 1.2Tesla but can go to 1.7Tesla, but the intention is to drive a bit further than that, passed the usual point of saturation. The dampening held at 15% difference in turns seems to hold the rate of increase of the flux to an acceptable amount. The current flowing in a circle pretensions and allows more current, 0.4A max to flow through the Hi volt pulse circuit.   

I have a 120v ac voltage regulator, It go from 0-180 ac  so it would not be difficult to put and capacitor with diode bridge, I think it will work?

 ;D ;D ;D This project is Alan's Transformer as a Generator
I should not do anything without your confirmation before  :) lol
that's the hardest part but; you right
Check twice cut once  8)

Question:
Do I have to make the small transformer for the input winding wound on a core for 12 volts 74 turns? I mean; input 70+74 turns an output the same 70+74 with the center tapped?

Thanks!


 
Hi,
[/quote]
I have a 120v ac voltage regulator, It go from 0-180 ac  so it would not be difficult to put and capacitor with diode bridge, I think it will work?
[End Quote]

From experience 50-60 Hz needs to be really well filtered when rectified because it seems to interfere with the 50-60Hz being generated. Apart from that ordinary power rectified with a full pulse is too much it needs half a pulse.
Two square wave pulses fit into one rectified sine wave form, pulse. The modulated magnetic flux changes polarity in a half of one wave semi-cycle and then one half of the other.

A circuit could be made to follow the peak and the zero crossover to make four square wave pulses.

Keep your diagram of the wave forms handy it shows the relationship.

The circuits need to be modulated to get maximum current with little voltage. Voltage is necessary to remove the flux and to get maximum
current. Then as the high currents slow down to a stop the magnetic field is created with voltage. A fluctuation in a DC circuit is enough to get a full polarity changing magnet effect.

Then voltage is required to transition to the next DC cycle in a half wave. Voltage assists in getting more AT. 

Think of it as two DC semi cycles that fully change the polarity of the flux in one half wave each.

It could operate on one semi cycle only just DC.

[/quote]
Question:
Do I have to make the small transformer for the input winding wound on a core for 12 volts 74 turns? I mean; input 70+74 turns an output the same 70+74 with the center tapped?
[End Quote]
I am not sure what you mean exactly.

When transformers are wound 5.25 turns per volt are used but it does depend on core area and frequency.
76mm h X 64mm l X 26mm w. The former looks square 26mm X 26mm.

Batteries could do this but they must be isolated to float with the Hi-voltage that is generated.

When everything is connected correctly there is very little voltage difference in the main transformer windings.

I have two transformers but they are not center tapped on the O/P. The Hi voltage circuit will be connected to one O/P, the input onto the least turns of the dampening choke. The Hi volt circuit draws more current through the least turns of the choke and then into the main transformer, increasing AT.
Both these dampening chokes, the four windings have now been wound onto one core. This will be tried soon.

The battery charger that is being put together is just about finished. Some more coil winding may be required because it has to be balanced correctly.
A capacitor is being charged and then discharged through an SCR to at least equal AT so that the magnetic field will collapse with currents going in opposite directions.

All the best,

Allan



leonelogb

  • Full Member
  • ***
  • Posts: 122
Re: Alan's Transformer as a Generator
« Reply #53 on: September 20, 2020, 03:55:06 AM »
Thank you Alan.

While I wait for the materials and try to reuse the wires. Check the input schematic that I am going to try to do as you advise!

Hi,

I have a 120v ac voltage regulator, It go from 0-180 ac  so it would not be difficult to put and capacitor with diode bridge, I think it will work?
[End Quote]

From experience 50-60 Hz needs to be really well filtered when rectified because it seems to interfere with the 50-60Hz being generated. Apart from that ordinary power rectified with a full pulse is too much it needs half a pulse.
Two square wave pulses fit into one rectified sine wave form, pulse. The modulated magnetic flux changes polarity in a half of one wave semi-cycle and then one half of the other.

A circuit could be made to follow the peak and the zero crossover to make four square wave pulses.

Keep your diagram of the wave forms handy it shows the relationship.

The circuits need to be modulated to get maximum current with little voltage. Voltage is necessary to remove the flux and to get maximum
current. Then as the high currents slow down to a stop the magnetic field is created with voltage. A fluctuation in a DC circuit is enough to get a full polarity changing magnet effect.

Then voltage is required to transition to the next DC cycle in a half wave. Voltage assists in getting more AT. 

Think of it as two DC semi cycles that fully change the polarity of the flux in one half wave each.

It could operate on one semi cycle only just DC.


Question:
Do I have to make the small transformer for the input winding wound on a core for 12 volts 74 turns? I mean; input 70+74 turns an output the same 70+74 with the center tapped?
[End Quote]
I am not sure what you mean exactly.

When transformers are wound 5.25 turns per volt are used but it does depend on core area and frequency.
76mm h X 64mm l X 26mm w. The former looks square 26mm X 26mm.

Batteries could do this but they must be isolated to float with the Hi-voltage that is generated.

When everything is connected correctly there is very little voltage difference in the main transformer windings.

I have two transformers but they are not center tapped on the O/P. The Hi voltage circuit will be connected to one O/P, the input onto the least turns of the dampening choke. The Hi volt circuit draws more current through the least turns of the choke and then into the main transformer, increasing AT.
Both these dampening chokes, the four windings have now been wound onto one core. This will be tried soon.

The battery charger that is being put together is just about finished. Some more coil winding may be required because it has to be balanced correctly.
A capacitor is being charged and then discharged through an SCR to at least equal AT so that the magnetic field will collapse with currents going in opposite directions.

All the best,

Allan

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #54 on: September 20, 2020, 06:27:49 AM »
Thank you Allan.

While I wait for the materials and try to reuse the wires. Check the input schematic that I am going to try to do as you advise!

Hi leonelogb,

That should work. Keep it easy to begin with and control the input supply voltage between 6v and 12v to control the output.

Allan

Cadman

  • Sr. Member
  • ****
  • Posts: 409
Re: Alan's Transformer as a Generator
« Reply #55 on: September 28, 2020, 10:51:56 PM »
Allan, leonelogb,

Any progress or news?

Regards

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #56 on: September 28, 2020, 11:09:31 PM »
Allan, leonelogb,

Any progress or news?

Regards

Hi Cadman,

Thanks for your interest.

Winding coils etc at the moment.

There is a bit further to go because of it being a part time project.

And I needed a break from all the writing but will be posting very soon.

All the best,

Allan



 

Cadman

  • Sr. Member
  • ****
  • Posts: 409
Re: Alan's Transformer as a Generator
« Reply #57 on: September 29, 2020, 03:40:35 PM »
Hi Allan,

Thanks for your reply.

I’ve been following this from the beginning, studying and trying to understand what you are doing, and how the magnetic fields might be reacting.

Looking at your early posts I noticed that your hand drawn impulses show different time lengths.
One large impulse, followed by a short over-lapping impulse, followed by a pause, followed by one large impulse, followed by a short over-lapping impulse, followed by a pause… etc.

Is this the correct sequence with +vdc?

No hurry for a reply. Enjoy your break :)

Regards

AllanV

  • Jr. Member
  • **
  • Posts: 54
Re: Alan's Transformer as a Generator
« Reply #58 on: September 29, 2020, 11:46:31 PM »
Hi Allan,

Thanks for your reply.

I’ve been following this from the beginning, studying and trying to understand what you are doing, and how the magnetic fields might be reacting.

Looking at your early posts I noticed that your hand drawn impulses show different time lengths.
One large impulse, followed by a short over-lapping impulse, followed by a pause, followed by one large impulse, followed by a short over-lapping impulse, followed by a pause… etc.

Is this the correct sequence with +vdc?

No hurry for a reply. Enjoy your break :)

Regards

Hi Cadman,

The extra long square wave pulses need not apply if a high volt winding is on the same transformer that produces the low volt circuit. The the hi volt current will only flow while the low volt circuit sets up the transformer flux to accept more.

There is a low volt circuit that circles a current through the connection of the two main windings of uneven turns. This produces some bias and AT that produces a flux. This sets up the transformer action where even more current can be driven through one winding only.
A smaller inductor with two windings and a turn ratio is necessary to force an increase of current through the one winding. This only occurs if a separate high voltage circuit is set up to drive the extra current in that winding.

Modulating the magnetic field causes the maximum current to flow, while current flow brought to a stop produces the maximum voltage in a transition to the next half wave.

AC can be thought of as two half waves of DC that requires voltage to make the crossover to the other half wave.
Each quarter of the wave has a change of flux polarity in the core as the AT change except where the crossover takes place but then the currents change direction while the voltage reaches maximum.

There are different ways of setting this up and it is a work in progress. The main point is to put the power input into the link between a transformer input and output which for 80watts is only 1/2500th DC equivalent which is about 0.032watt. It takes more power to make the transition to the next half wave. 

The difference in a transformer with a load, is a dampening of the flux that requires a 10% over wind on the output turns. 
Resonance in transformer circuits can be maintained with a small input to make up for the dampening brought about by a change in load.

All the best,

Allan 

Cadman

  • Sr. Member
  • ****
  • Posts: 409
Re: Alan's Transformer as a Generator
« Reply #59 on: September 30, 2020, 02:47:04 PM »
Allan,

Thank you for your reply.

I think I am beginning to understand a little better about how this all comes together.

Regards,
Cadman