My Friends,
Some have spent 50+ years searching! We have what they could not find!
Some have Degrees, BA's, Ph.D.'s, all sorts of Education under their belt! Education, does not, by any means, mean: Smart!
Why have we succeeded, very simple, we have Open Minds, we have not aloud our minds to be clouded with Assumptions, or Postulates! We have found several simple things to be incomplete in Science, that they, their Exploration, failed to Find!
Their Symmetrical Mind Set has let them down!
You are all familiar with the following Circuit:
Well, we can do better! There is more!
Nikola Tesla gave us a phenomena of great importance when he filed Patent: No# 512,340
UNITED STATES PATENT OFFICE.
NIKOLA TESLA, OF NEW YORK, N. Y.
COIL FOR ELECTRO-MAGNETS.
SPECIFICATION forming part of Letters Patent No. 512,340, dated January 9, 1894.
Application filed July 7, 1893. Serial No. 479,804. (No model.)
To all whom it may concern:
Be it known that I, NIKOLA TESLA, a citizen of the United States, residing at New York, in the county and State of New York, have invented certain new and useful Improvements in Coils for Electro-Magnets and other Apparatus, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same.
In electric apparatus or systems in which alternating currents are employed the self-induction of the coils or conductors may, and, in fact, in many cases does operate disadvantageously by giving rise to false currents which often reduce what is known as the commercial efficiency of the apparatus composing the system or operate detrimentally in other respects. The effects of self-induction, above referred to, are known to be neutralized by proportioning to a proper degree the capacity of the circuit with relation to the self-induction and frequency of the currents. This has been accomplished heretofore by the use of condensers constructed and applied as separate instruments.
My present invention has for its object to avoid the employment of condensers which are expensive, cumbersome and difficult to maintain in perfect condition, and to so construct the coils themselves as to accomplish the same ultimate object.
I would here state that by the term coils I desire to include generally helices, solenoids, or, in fact, any conductor the different parts of which by the requirements of its application or use are brought into such relations with each other as to materially increase the self-induction.
I have found that in every coil there exists a certain relation between its self-induction and capacity that permits a current of given frequency and potential to pass through it with no other opposition than that of ohmic resistance, or, in other words, as though it possessed no self-induction. This is due to the mutual relations existing between the special character of the current and the self-induction and capacity of the coil, the latter quantity being just capable of neutralizing the self-induction for that frequency. It is well-known that the higher the frequency or potential difference of the current the smaller the capacity required to counteract the self-induction; hence, in any coil, however small the capacity, it may be sufficient for the purpose stated if the proper conditions in other respects be secured. In the ordinary coils the difference of potential between adjacent turns or spires is very small, so that while they are in a sense condensers, they possess but very small capacity and the relations between the two quantities, self-induction and capacity, are not such as under any ordinary conditions satisfy the requirements herein contemplated, because the capacity relatively to the self-induction is very small.
In order to attain my object and to properly increase the capacity of any given coil, I wind it in such way as to secure a greater difference of potential between its adjacent turns or convolutions, and since the energy stored in the coil—considering the latter as a condenser, is proportionate to the square of the potential difference between its adjacent convolutions, it is evident that I may in this way secure by a proper disposition of these convolutions a greatly increased capacity for a given increase in potential difference between the turns.
I have illustrated diagrammatically in the accompanying drawings the general nature of the plan which I adopt for carrying out this invention.
Figure 1 is a diagram of a coil wound in the ordinary manner. Fig. 2 is a diagram of a winding designed to secure the objects of my invention.
Let A, Fig. 1, designate any given coil the spires or convolutions of which are wound upon and insulated from each other. Let it be assumed that the terminals of this coil show a potential difference of one hundred volts, and that there are one thousand convolutions; then considering any two contiguous points on adjacent convolutions let it be assumed that there will exist between them a potential difference of one-tenth of a volt. If now, as shown in Fig. 2, a conductor B be wound parallel with the conductor A and insulated from it, and the end of A be connected with the starting point of B, the aggregate length of the two conductors being such that the assumed number of convolutions or turns is the same, viz., one thousand, then the potential difference between any two adjacent points in A and B will be fifty volts, and as the capacity effect is proportionate to the square of this difference, the energy stored in the coil as a whole will now be two hundred and fifty thousand as great. Following out this principle, I may wind any given coil either in whole or in part, not only in the specific manner herein illustrated, but in a great variety of ways, well-known in the art, so as to secure between adjacent convolutions such potential difference as will give the proper capacity to neutralize the self-induction for any given current that may be employed. Capacity secured in this particular way possesses an additional advantage in that it is evenly distributed, a consideration of the greatest importance in many cases, and the results, both as to efficiency and economy, are the more readily and easily obtained as the size of the coils, the potential difference, or frequency of the currents are increased.
Coils composed of independent strands or conductors wound side by side and connected in series are not in themselves new, and I do not regard a more detailed description of the same necessary. But heretofore, so far as I am aware, the objects in view have been essentially different from mine, and the results which I obtain even if an incident to such forms of winding have not been appreciated or taken advantage of.
In carrying out my invention it is to be observed that certain facts are well understood by those skilled in the art, viz.: the relations of capacity, self-induction, and the frequency and potential difference of the current. What capacity, therefore, in any given case it is desirable to obtain and what special winding will secure it, are readily determinable from the other factors which are known.
What I claim as my invention is—
1. A coil for electric apparatus the adjacent convolutions of which form parts of the circuit between which there exists a potential difference sufficient to secure in the coil a capacity capable of neutralizing its self-induction, as hereinbefore described.
2. A coil composed of contiguous or adjacent insulated conductors electrically connected in series and having a potential difference of such value as to give to the coil as a whole, a capacity sufficient to neutralize its self-induction, as set forth.
NIKOLA TESLA.
Witnesses:
ROBT. F. GAYLORD,
PARKER W. PAGE.
The Coefficient of Coupling of Coils / Inductors ( K ) is a unique variable. If the Factor is equal to 1, then the Coupling is considered Unity Coupling. Normally, Unity Coupling is where one Inductor is on top, directly, of the other. In other words, no Space is separating the Inductors/Coils.
Here is one way to Visualise this:
Ref: Mutual Inductance
Here, a Transformer with Unity Coupling:
Both input and output Coils are considered Unity Coupled, Inner Coil is the Primary and Outer Coil is normally the Secondary.
Basically, Electromagnetic induction is better, the closer you have the Coils to the Source Changing Magnetic Field!
NOTE: The Natural state of two Parallel Wires, if Current Flows, is in Opposite Directions! I have stated this Here. NOT in the Same Direction:
Most all of us here, already know this stuff, all have either learnt this prior to becoming a member, or from prior posts on this Forum.
In Practice, if we use what we have learned already, we can, in point of fact, use this knowledge, to gain an advantage.
Nikola Tesla says:
What I claim as my invention is—
- A coil for electric apparatus the adjacent convolutions of which form parts of the circuit between which there exists a potential difference sufficient to secure in the coil a capacity capable of neutralizing its self-induction, as hereinbefore described.
- A coil composed of contiguous or adjacent insulated conductors electrically connected in series and having a potential difference of such value as to give to the coil as a whole, a capacity sufficient to neutralize its self-induction, as set forth.
I propose the opposite, to Maximise the Self Induction.
My Friends, a recap for you:
We can have a Bi-polar Version:
Where:
- S-Gnd = Scope Ground.
- S-V = Scope Voltage Probe.
- S-I = Scope Current Probe.
The Bi-Polar Version is a bit more difficult to use, and operate! The DC Pulses must be set, both Frequency and in Duty Cycle spot on to make this work efficiently.
NOTE: A Capacitor on the Output, is a good idea! The Capacitor will make for easier Measurement and also Spike Smoothing. Helping to protect your Scope and Equipment!
This probably should be a requirement at this stage!
NOTE: C1 the 10,000.00 uF Capacitor. This will absorb the Spikes and Smooth the Voltage and Current Spikes we saw in earlier experiments. I know most here know this already, but for those that don't.
The input Coil must fit the Partnered output Coil Resonance Frequency. What I mean, the Slope of the Current on the input Coil, must match the Slope of the Voltage on the Output Coil when at Resonance.
NOTE: I urge all here, a refresher on: Reduced Impedance Effect. This is an Important Effect!
I present a small demonstration, designed to show Effects Only:
I have decided to put this Video into a Series of Videos, here is Part One:
I do not wish to debate Measurements, I know what's possible, and this is merely a simple demonstration to show what's possible. Most of you, here, know what's possible already! This is simply the start! Step two of many!
Remember, Current I = Voltage V / Resistance R, so if Voltage V increases, Current I must also Increase! Ohms Law is our Friend!
This original thread can be viewed here: https://www.aboveunity.com/thread/one-step-ahead/ which will be modified later on.
Best Wishes,
Chris
