The TPU uncovered? (A PROBABLE technique.)

[aleks]

This example is using a 555driver circuit as in the pic, with an inductor/capacitance resonation tank as the driving circuit, testing output through an air core inductor. This is not through a completed collector coil circuit, but indicative of one control coil if you applied it towards such.

Thanks. So, basically pic.2 shows an inductive feedback of a single pulse?

[pauldude000]

I just thought of something, I thought I might share with all.

Do you want one HELL of a forward biased enhancing diode? As high a V/A as you care to build? Got your attention yet?

Take a permanent magnet (the stronger the more effective IE rare earth), a cylinder oriented to the faces, and wind a coil around it. Epoxy the coil in place so that it cannot move. That's it, all there is to it.

Now, why it works.

Apply a dc current to it, the current creates an oriented field in the coil (right hand rule). If this field is opposite the permanent magnets field, the perm magnet neutralizes the field. You would have to have more gauss than the magnet to neutralize it's field. Therefore, current will only flow easily ONE WAY in the circuit. (By definition a diode.)

Now, when current flows the other direction, the permanent magnets field will ENHANCE the field of the coil. (Both magnet and coil will "see" the overall field as its own)........

Something to make you go Hmmmmm....

Practicality:

For small signal use, maybe not much.

Question: how much is the cost of a 600V 30A diode, or worse a 6000V 30A diode?

Question: How much is a small stack of samarium cobalt magnets, a piece of wire, and some epoxy? (Especially if a diode like you desire is not commercially available except through custom order?)

Question: What is you desire the enhancement effects?

I am going to build one today, and do some playing.

Paul Andrulis

[aleks]

I am going to build one today, and do some playing.

Hmm. Will it work at all? I think even if magnetic field is nullified it does not mean current will get nullified as well...

[pauldude000]

@aleks

Any coil you wind will have its own natural resonant value. It will actually have more than one depending upon capacitance of the coil, the inductance of the coil, the length of the wire used to wind the coil, and the physical shape of the coil. Each of these contributes in it's own way. Every coil is biased towards it's own natural resonant frequencies (harmonics). It reacts to them with more power, and in fact a coil fights non-resonant frequencies, damping them out.

What you see in the phase example is what happens CLOSE to resonance. ONE Square Wave signal is applied, but the coil reacts and creates another. These two signals overlap, are enhancing, and become indistinguishable AT resonance.  The first sine picture is the same coil, the same applied signal, but ALL of the signals are in phase, which is why the AC component CREATED BY THE COIL ITSELF, is of much greater strength than the applied signal.

Paul Andrulis

[aleks]

The first sine picture is the same coil, the same applied signal, but ALL of the signals are in phase, which is why the AC component CREATED BY THE COIL ITSELF, is of much greater strength than the applied signal.

No problem, I understand. It is called filtering. DC pulses carry base frequency information. It is what we see on the scope. Still, this does not look like "sine wave segments".