RO84125B - Dipol de simulare a unei rezistente - Google Patents

Dipol de simulare a unei rezistente

Info

Publication number
RO84125B
RO84125B RO109230A RO10923082A RO84125B RO 84125 B RO84125 B RO 84125B RO 109230 A RO109230 A RO 109230A RO 10923082 A RO10923082 A RO 10923082A RO 84125 B RO84125 B RO 84125B
Authority
RO
Romania
Prior art keywords
dipole
pole
operational amplifier
input
resistance
Prior art date
Application number
RO109230A
Other languages
English (en)
Other versions
RO84125A (ro
Inventor
Laszlo Szedlak
Original Assignee
Telefongyar
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefongyar filed Critical Telefongyar
Publication of RO84125A publication Critical patent/RO84125A/ro
Publication of RO84125B publication Critical patent/RO84125B/ro

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/24—Frequency-independent attenuators

Landscapes

  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

Inventia se refera la un circuit pe baza caruia poate fi realizat un dipol executat din elemente componente active care înlocuieste o rezistenta. Circuitul este constituit dintr-un element comandat construit cu un tranzistor si prevazut cu o intrare de comanda tranzistorul fiind conectat la intrarea de comanda precum si la prima si la a doua borna de legatura ale elementului comandat spre intrarea de comanda fiind dirijata o iesire a unui amplificator operational cuplat prin intermediul a doua circuite de reacsie cu întîrziere de faza la bornele respective de legatura iar primul pol al dipolului fiind legat la intrarea neinvertibila a amplificatorului operational ti al doilea pol fiind legat la o borna de legatura. Al doilea pol este conectat indirect la intrarea invertibila a amplificatorului operational.
RO109230A 1981-12-18 1982-12-04 Dipol de simulare a unei rezistente RO84125B (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU384181A HU182390B (en) 1981-12-18 1981-12-18 With the active elements formed two-pole terminal network equivalent to a resistor

Publications (2)

Publication Number Publication Date
RO84125A RO84125A (ro) 1984-05-23
RO84125B true RO84125B (ro) 1984-07-30

Family

ID=10965729

Family Applications (1)

Application Number Title Priority Date Filing Date
RO109230A RO84125B (ro) 1981-12-18 1982-12-04 Dipol de simulare a unei rezistente

Country Status (5)

Country Link
DD (1) DD216588A5 (ro)
DE (1) DE3245037A1 (ro)
GB (1) GB2117590A (ro)
HU (1) HU182390B (ro)
RO (1) RO84125B (ro)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631285A1 (de) * 1986-09-13 1988-03-24 Vdo Schindling Anordnung zur einstellung eines analogen widerstands auf einen waehlbaren, digital vorgebbaren wert
US6584196B1 (en) * 1999-05-14 2003-06-24 Conexant Systems, Inc. Electronic inductor with transmit signal telephone line driver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1514136A (en) * 1975-03-31 1978-06-14 Yokogawa Electric Works Ltd Variable resistance circuit
FR2414832A1 (fr) * 1978-01-13 1979-08-10 Labo Cent Telecommunicat Pont d'alimentation pour ligne telephonique
FR2419612A1 (fr) * 1978-03-07 1979-10-05 Sundstrand Data Control Circuit conformateur de signaux electriques

Also Published As

Publication number Publication date
HU182390B (en) 1983-12-28
DD216588A5 (de) 1984-12-12
GB2117590A (en) 1983-10-12
RO84125A (ro) 1984-05-23
DE3245037A1 (de) 1983-07-14

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