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Convertor de admitanţă

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dc.contributor Universitatea Tehnică a Moldovei
dc.contributor.author NASTAS, Vitalie
dc.date.accessioned 2021-04-27T11:03:57Z
dc.date.available 2021-04-27T11:03:57Z
dc.date.issued 2007-12-31
dc.identifier.citation NASTAS, Vitalie. Convertor de admitanţă. Brevet MD 3461, CIB G01R 27/02, H03H 11/46, G01R 35/00. Universitatea Tehnică a Moldovei. Nr. depozit: a 2007 0054. Data depozit: 2007.03.02. Data public.: 2007.12.31. In: BOPI. 2007, nr. 12. en_US
dc.identifier.other Nr. depozit: a 2007 0054
dc.identifier.uri http://www.db.agepi.md/Inventions/details/a%202007%200054
dc.identifier.uri http://81.180.74.21:8080/xmlui/handle/123456789/14505
dc.description.abstract Invenţia se referă la tehnica de măsurare şi la radioelectronică şi poate fi utilizată pentru reproducerea cu precizie mare a admitanţelor flotante reprezentate în coordonate carteziene. Convertorul de admitanţă conţine două contacte (2, 3), un amplificator diferenţial (1) conectat la contacte, un defazor (6), un amplificator programabil (4) conectat cu intrarea la ieşirea amplificatorului diferenţial (1), iar cu ieşirea la intrarea defazorului (6), un bloc de conversie tensiune-curent. Convertorul conţine suplimentar un al doilea amplificator programabil (5) conectat cu intrarea la ieşirea primului amplificator diferenţial (1), şi un al doilea amplificator diferenţial (7) conectat cu intrările la ieşirea defazorului (6) şi, respectiv, la ieşirea celui de-al doilea amplificator programabil (5). Blocul de conversie tensiune-curent este conectat cu intrarea la ieşirea amplificatorului diferenţial (7) şi constă din două convertoare tensiune-curent (8, 9) cu coeficienţi de conversie egali de semn opus, ieşirile cărora sunt conectate la primul şi, respectiv, la al doilea contact. Ambele amplificatoare programabile asigură coeficienţi de transfer reglabili cu valori pozitive şi negative, iar defazorul asigură un defazaj de 90°. en_US
dc.description.abstract The invention relates to the measurement engineering and radio electronics and may be used for high-accuracy reproduction of floating admittances in the Cartesian coordonates. The admittance converter comprises two contacts (2, 3), a differential amplifier (1) connected to the contacts, a phase shifter (6), a programmable amplifier (4) having its input connected to the output of the differential amplifier (1) and its output to the input of the phase shifter (6), a voltage-to-current conversion block. The converter additionally comprises a second programmable amplifier (5) having its input connected to the output of the first differential amplifier (1) and a second differential amplifier (7) having its input connected to the output of the phase shifter (6) and, respectively, to the output of the second programmable amplifier (5). The voltage-to-current conversion block has its input connected to the output of the differential amplifier (7) and consists of two voltage-to-current converters (8, 9) with equal conversion factors of opposite signs, the outputs of which are connected to the first and, respectively, the second contacts. Both programmable amplifiers ensure adjusted transport factors with positive and negative values, and the phase shifter ensures a phase shift of 90°. en_US
dc.language.iso ro en_US
dc.publisher Agenţia de Stat pentru Proprietatea Intelectuală a Republicii Moldova en_US
dc.rights Brevet nevalabil. Data expirării brevetului: 2026.03.02. en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject invenţii en_US
dc.subject brevete de invenţie en_US
dc.subject admitanţă en_US
dc.subject admittance en_US
dc.subject convertoare de admitanţă en_US
dc.subject admittance converters en_US
dc.subject.classification IPC: G01R 27/02 (2006.01) en_US
dc.subject.classification IPC: H03H 11/46 (2006.01)
dc.subject.classification IPC: G01R 35/00 (2006.01)
dc.title Convertor de admitanţă en_US
dc.type Patent en_US


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Brevet nevalabil. Data expirării brevetului: 2026.03.02. Except where otherwise noted, this item's license is described as Brevet nevalabil. Data expirării brevetului: 2026.03.02.

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