Virtually any single phase, layer wound inductors or transformers that range from 10Hz to over 5MHz can be synthesized with Magnetics Designer.Ĭompatibility: Windows 2000/XP/Vista/7/8/8.1, 8Meg RAM and Microsoft Excel is required if you want to edit or add to the core database.
Typical design applications include high frequency switching regulator transformers and output chokes for off-line, full-wave and forward converters, 60 Hz single-phase line transformers, AC inductors, planar magnetics and 400 Hz aircraft transformers.
The program predicts magnetizing and leakage inductance, inter-winding capacitance, peak flux density, DC winding resistance, high frequency AC resistance (including proximity effects and skin effect), copper loss (both AC and DC), core loss, weight, temperature rise, layer fill and window fill percentage. Specialized wire types like those used in planar magnetics can also be added. Further, formvar, square or double square magnet wire, Litz wire, PCB traces, or foil can be selected. Core vendors such as TDK, Magnetics, Philips, Thomson, Micrometals, Siemens, Kaschke, Ferrite International, VAC and Fair-Rite are represented. In addition, you can add your own cores, wire and material information using a supplied Excel© spreadsheet. A database with thousands of cores, wide variety of materials and wire is included, including a non-linear saturable core SPICE model.
Magnetics Designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a SPICE-compatible model with parasitics.
The tables below show the complete data.Magnetics Designer is a standalone software program for Windows that designs all types of layer (and sector/split bobbin) wound transformers and inductors, and generates a corresponding SPICE model. Based on arrl formulas i have plenty of core length to separate the two coils along the length of the core.Ħ 32 slotted brass adjuster. The ferrite slug core raise the a l from 33 to 125 depending on how deep it is screwed into the coil. For higher frequencies inductors are made with cores of ferrite. A slug turned coil has a cylindrical shape and it has adjustable iron and ferrite cores toroids are less adjustable. The position of the slug core is in percent of the total lengt of the core. The basic construction of a slug tuned inductor is shown in fig. Theyre many reasons to consider toroids over other coils. This was made for and used exclusively in scientific radio hf equipment produced in the 1980s.Ġ500 diameter 250 long brass adjuster. The value of inductance increases or decreases respectively due to the movement of a ferrite core into or out of the coil winding.įerrite rods bars slugs plates and tubes are primarily used as magnetic cores in radio antennas chokes inductors and filters. I am going to build the inductor in the figure above.
If there is no core the value is 0 and if the complete core is screwed into the coil the value is 100.ġuh variable rf inductor vintage radio electronic tv adjustable ferrite coil. This was made for and used exclusively in scientific radio hf equipment produced in the 1980s. The variable inductor having an adjustable ferrite core is known as slug tuned inductor.įerrite is a ceramic ferrimagnetic material that is nonconductive so eddy currents cannot flow within it. Hf ferrite tuning slug.įerrite core inductor for antenna. In radio antennas ferrite rods are useful from vlf spectrum to vhf spectrum. In electronics a ferrite core is a type of magnetic core made of ferrite on which the windings of electric transformers and other wound components such as inductors are formed. It is used for its properties of high magnetic permeability coupled with low electrical conductivity which helps prevent eddy currents. I have a ferrite core with a relative permeability of about 70. The formulation of ferrite is xxfe 2 o 4 where xx represents various metals.įerrite slug inductor.