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![]() PENIN, Alexander A., SIDORENKO, Anatolie. Invariants of energy characteristics of two-ports with variable loads. In: Moldavian Journal of the Physical Sciences, 2019, nr. 1-4(18), pp. 97-109. ISSN 1810-648X. DOI: https://doi.org/10.5281/zenodo.4019797 |
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Moldavian Journal of the Physical Sciences | ||||||
Numărul 1-4(18) / 2019 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
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DOI:https://doi.org/10.5281/zenodo.4019797 | ||||||
CZU: 537.3+621.3:620.9 | ||||||
Pag. 97-109 | ||||||
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Rezumat | ||||||
Energy characteristics as the load power and efficiency via the load resistance are the well-known two-valued cubic curves. The consideration of these quadratic fractional expressions as geometric projective transformations makes it possible to introduce the cross ratio of four points in limited single-valued working areas. The cross ratio is accepted as the regime parameter in a relative form, which is invariant to a type of the actual regime parameters and circuit sections. The form of expressions for the actual parameter changes depends on the actual regime type. Changes in regime parameters are proved; direct formulas of recalculation are proposed. |
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