Otto`s replication of Steven Mark`s TPU

[devilzangel]

Otto .. THANKS for your insightful observations of you experiment.

Maybe .. the whole TPU acts like a tube .. getting to a certain temp to operate functionally.

(@Gustav22 - thanks for the translation)

devilzangel
..

[Grumpy]

Hello all,

@Rich

in this moment I prefer for my primary side of my little "transformer" 4,2m wire lenght and diameter can be 0,5mm - 1mm. Its the same. Yes, the current from the power supply is the same. Nice, isnt it?

For my secondary I use 0,35mm wire diameter and 10,5 m .

Of course, the controls must be optimised.

You did a great job. Finally, my drawings on 1 place. Thanks.

I see you mentioned currents.
When you first pulse the coils at WRONG frequencies it can happen that the current from the power supply is at least 5A!!!!  A disaster. The controls are overheating, you can smell the isolation of the wires is almost melting.
Wehn you are nearer even a wrong frequency, but a nearer, the current drops to 2 - 3A and then the coils are hot but not overheated. With such a current you can then easily work.
Later I will describe something impossible but fantastic.

Again in short:

1.primary coil 4,2m lenght, diameter 0,5mm - 1mm
2.secondary coil 10,5m lenght, 0,35mm

It will be and must be changed.

Otto

12v at 5 amps is 60 watts.

12v at 2amps is 24 watts and 36 watts at three amps.  If this is at each control coil, then you would have 72 to 108 watts going in and this is applied to the collectors since they are connected to the controls.

0.35 mm wire is only rated at about 1.7 amps - which is conservative, but indicates that it should get hot with more current than this.

So, do you have less going in than you have going out?  If you do not, then how can you say you have a working TPU?

You have given no measurments of the lumens output of the bulb, no measurements of the currents.  The control coils are connected to the collectors so you can not say that the input is isolated from the output.  Would not a better indicator be a resistor and a meter at the load, rather than a bulb which changes as it heats?

[Grumpy]

Otto: Is this modified schematic correct?  Do you cross at each side or across the middle?

[Hoppy]

12v at 5 amps is 60 watts.

12v at 2amps is 24 watts and 36 watts at three amps.  If this is at each control coil, then you would have 72 to 108 watts going in and this is applied to the collectors since they are connected to the controls.

0.35 mm wire is only rated at about 1.7 amps - which is conservative, but indicates that it should get hot with more current than this.

So, do you have less going in than you have going out?  If you do not, then how can you say you have a working TPU?

You have given no measurments of the lumens output of the bulb, no measurements of the currents.  The control coils are connected to the collectors so you can not say that the input is isolated from the output.  Would not a better indicator be a resistor and a meter at the load, rather than a bulb which changes as it heats?

Illuminating a 60W bulb with 2 or 3 Amps does not need a TPU. Wind a bifilar coil on a 150mm x 175mm conventional wire spool using 19swg or 18awg (preferably twisted or litzed) and fill the spool. Configure this into an oscilator using a single MOSFET or BIPOLAR transistor and see that 60W mains lamp glow nicely. Alternatively make a very simple push - pull inverter using a 'P' & 'N' MOSFET bridge and a large toroidal mains transformer . This would look just like a TPU if the MOSFETS were placed around the inside circumference of the toroid!

I thought the challenge was to do as SM did and illuminate the lamp from no PSU or perhaps just a small 9V battery??

[Grumpy]

Illuminating a 60W bulb with 2 or 3 Amps does not need a TPU. Wind a bifilar coil on a 150mm x 175mm conventional wire spool using 19swg or 18awg (preferably twisted or litzed) and fill the spool. Configure this into an oscilator using a single MOSFET or BIPOLAR transistor and see that 60W mains lamp glow nicely. Alternatively make a very simple push - pull inverter using a 'P' & 'N' MOSFET bridge and a large toroidal mains transformer . This would look just like a TPU if the MOSFETS were placed around the inside circumference of the toroid!

I thought the challenge was to do as SM did and illuminate the lamp from no PSU or perhaps just a small 9V battery??

That is exactly what I'm talking about.  Once again we are led to believe the the journey is over when it has barely begun.