kopia lustrzana https://github.com/miguelvaca/vk3cpu
Added change history to the notes section.
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toroid.html
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toroid.html
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The calculator has 4 separate display areas. At the top is the chart display for showing frequency-dependent characteristics. Next is the
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The calculator has 4 separate display areas. At the top is the chart display for showing frequency-dependent characteristics. Next is the
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schematic display, where a scaled image of the toroid and windings is presented to help with intuitive design. Next is the control panel
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schematic display, where a scaled image of the toroid and windings is presented to help with intuitive design. Next is the control panel
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section, where the user can select the application type, toroid material, toroid size, wire size, number of windings and excitation voltage.<br><br>
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section, where the user can select the application type, toroid material, toroid size, wire size, number of windings and excitation voltage.<br><br>
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<u>Inputs via the select widgets:</u>
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<b><u>Inputs via the select widgets:</u></b>
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<ul>
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<ul>
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<li>Application : Selects the intended use of the toroid, either Inductor or Suppressor is currently supported. This limits the material selection as appropriate.</li>
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<li>Application : Selects the intended use of the toroid, either Inductor or Suppressor is currently supported. This limits the material selection as appropriate.</li>
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<li>Size : Selects the size of the toroid. FT240 is 2.4" in diameter. FT80 is 0.8", etc...</li>
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<li>Size : Selects the size of the toroid. FT240 is 2.4" in diameter. FT80 is 0.8", etc...</li>
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<li>Material : Manufacturers material mix code. Inductor mode shows initial permeability [μi] in square brackets. (Pick lower μi for higher frequency applications.) Suppressor mode displays effective suppression frequency range in square brackets.</li>
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<li>Material : Manufacturers material mix code. Inductor mode shows initial permeability [μi] in square brackets. (Pick lower μi for higher frequency applications.) Suppressor mode displays effective suppression frequency range in square brackets.</li>
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</ul>
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</ul>
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<u>Inputs via the slider widgets:</u>
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<b><u>Inputs via the slider widgets:</u></b>
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<ul>
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<ul>
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<li>AWG : Select the wire gauge. Sliding L-R changes AWG from 40-0. (Defaults to 20 AWG)</li>
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<li>AWG : Select the wire gauge. Sliding L-R changes AWG from 40-0. (Defaults to 20 AWG)</li>
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<li>N : Selects the number of turns based on the winding density. Maximum (100%, slider to hard-right) is reached when the turns are adjacent at the toroid's inner radius. (Defaults to 20%)</li>
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<li>N : Selects the number of turns based on the winding density. Maximum (100%, slider to hard-right) is reached when the turns are adjacent at the toroid's inner radius. (Defaults to 20%)</li>
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<li>f : Shifts the frequency of interest of the chart display from left-to-right. Left towards kHz, right towards GHz. </li>
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<li>f : Shifts the frequency of interest of the chart display from left-to-right. Left towards kHz, right towards GHz. </li>
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</ul>
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</ul>
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<i>Note: Manufacturers recommend keeping the number of turns (N) to a minimum.</i><br><br>
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<i>Note: Manufacturers recommend keeping the number of turns (N) to a minimum.</i><br><br>
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<u>Chart display:</u>
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<b><u>Chart display:</u></b>
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The chart title contains manufacturer, size, material and part number of the device. <br>
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The chart title contains manufacturer, size, material and part number of the device. <br>
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Calculated parameters are displayed against frequency (log scale). Each parameter may be displayed or hidden
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Calculated parameters are displayed against frequency (log scale). Each parameter may be displayed or hidden
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by tapping on the legend key. Tapping on a data point will display the parameters for a single frequency.
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by tapping on the legend key. Tapping on a data point will display the parameters for a single frequency.
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<li> Pd(mW) : Power dissipation in the core, in milliwatts. </li>
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<li> Pd(mW) : Power dissipation in the core, in milliwatts. </li>
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</ul>
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</ul>
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<i>Note: To use as an inductor, avoid using where Q is small or less than 1. When Q is less than 1, core loss energy is higher than magnetisation energy.</i><br><br>
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<i>Note: To use as an inductor, avoid using where Q is small or less than 1. When Q is less than 1, core loss energy is higher than magnetisation energy.</i><br><br>
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<u>Schematic display:</u>
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<b><u>Schematic display:</u></b>
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Scaled representation of the toroid and the windings. Wire gauge and toroid dimensions are provided.<br>
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Scaled representation of the toroid and the windings. Wire gauge and toroid dimensions are provided.<br>
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On the left of the display are the following:
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On the left of the display are the following:
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<ul>
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<ul>
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<li>[NiZn] : Material composition. (NiZn, MnZn)</li>
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<li>[NiZn] : Material composition. (NiZn, MnZn)</li>
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<li>[nnnn] : Manufacturer's part number.</li>
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<li>[nnnn] : Manufacturer's part number.</li>
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</ul>
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</ul>
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<br>
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<b><u>Change history:</u></b><br>
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<b>[24-Oct-21]</b> <br>
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* Fixed frozen f-slider issue that was occurring in some browsers running on Windows.<br>
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* Increased contrast for experimental Ceff and SRF calculations, based on David Knight's (G3YNH) paper.
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</div>
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</div>
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</section>
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</section>
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