Toriod Design Specifics
 This is an example of how the
toriod should look, and if you can wind better than I can draw, good. The
reason why the secondary goes onto the core first is simple. Magnetic
fields are generated by the current flow through the wire, and coverage of the core
as shown, allows for better magnetic coupling, and another condition. The
effeciency of the magnetic coupling is the result of a parallel gang of primarys that
will be wound over these windings as a step up transformer. For each
inductor on the core in parallel the inductors follow the same rules as standard
inductors in parallel, and the equasion to find the actual value of inductance is the
same.  I find drawing using my mouse tedious.
So, the primary windings shown here should cover the core once around as
shown on the first half of the core as the blue wire. This configuration must
be kept wound in the same direction primary per primary as you work around the
core. Usually, the actual inductance value of each primary winding is
slightly off from one to the next so, either use the measurement of each winding
as a refrence, and then the calculation for inductors in parallel or, have them
connected in phase, and in parallel before the measurement because, that is the
value of inductance that you will need for your resonance calcualtion to find the
right value of capacitor for the frequency you've chosen to operate the overall
circuit at. Using the target frequency, and not have any
experiance at all, or not knowing the right equasions yourself already, and without
help means you were never qualified to judge whether this would work or not.
On the other hand I've been to college, and have worked the equasions
several times, built several versions of this circuit, and tested them in operation
and found only the results that I have posted at this site. |
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