FR3063587B1 - Oscillateur commande en tension - Google Patents

Oscillateur commande en tension Download PDF

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Publication number
FR3063587B1
FR3063587B1 FR1751791A FR1751791A FR3063587B1 FR 3063587 B1 FR3063587 B1 FR 3063587B1 FR 1751791 A FR1751791 A FR 1751791A FR 1751791 A FR1751791 A FR 1751791A FR 3063587 B1 FR3063587 B1 FR 3063587B1
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France
Prior art keywords
voltage
vin
input
current
vref
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Active
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FR1751791A
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English (en)
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FR3063587A1 (fr
Inventor
Alexandre Huffenus
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Devialet SA
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Devialet SA
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Priority to FR1751791A priority Critical patent/FR3063587B1/fr
Publication of FR3063587A1 publication Critical patent/FR3063587A1/fr
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Publication of FR3063587B1 publication Critical patent/FR3063587B1/fr
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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B1/00—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45224—Complementary Pl types having parallel inputs and being supplied in parallel
    • H03F3/45233—Folded cascode stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45392—Indexing scheme relating to differential amplifiers the AAC comprising resistors in the source circuit of the AAC before the common source coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

L'oscillateur (10) commandé en tension comporte : - une entrée (Vin, Vref) pour une tension de commande définie entre un potentiel de commande (Vin) et un potentiel de référence (Vref) - un oscillateur commandé en courant (12) - un convertisseur tension-courant (14) dont l'entrée (Vin, Vref) forme l'entrée (Vin, Vref) pour la tension de commande de l'oscillateur commandé en tension (10) et dont la sortie (S) est reliée à une entrée de l'oscillateur commandé en courant (12), le convertisseur courant-tension (12) comportant : - deux paires différentielles (16A, 16B) connectées en inverse entre deux potentiels d'alimentation (Vdd, 0) chaque paire différentielle (16A, 16B) comportant deux branches (41 A, 42A, 41 B, 42B) les deux branches d'une même paire différentielle ayant des transistors (45A, 46A, 45B, 46B) de même polarité dont le canal drain-source est relié entre un même potentiel d'alimentation (Vdd, 0) à travers une source de courant de polarisation (30A, 30B) et les entrées d'une charge active (17A, 17B), les deux transistors (45A, 46A, 45B, 46B), des deux paires différentielles (16A, 16B) étant de polarités opposées, la transconductance des branches (41 A, 42A, 41 B, 42B) étant telle que le rapport entre la variation du courant de sortie (lout) et la variation de la tension d'entrée (Vin) est compris entre 1/5 et 5 fois la transconductance nominale pour toute tension d'entrée Vin comprise entre les potentiels d'alimentation (Vdd, 0) - la grille de commande de l'un des transistors (45A, 46A, 45B, 46B) de chaque paire étant reliée un potentiel de commande (Vin) et la grille de l'autre transistor de chaque paire (16A, 16B) étant reliée au potentiel de référence (Vréf), les sorties des charges actives (17A, 17B) étant connectées entre elles et la sortie (S) du convertisseur tension-courant (14) étant prise entre les sorties connectées des deux charges actives (17A, 17B).
FR1751791A 2017-03-06 2017-03-06 Oscillateur commande en tension Active FR3063587B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1751791A FR3063587B1 (fr) 2017-03-06 2017-03-06 Oscillateur commande en tension

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751791A FR3063587B1 (fr) 2017-03-06 2017-03-06 Oscillateur commande en tension
FR1751791 2017-03-06

Publications (2)

Publication Number Publication Date
FR3063587A1 FR3063587A1 (fr) 2018-09-07
FR3063587B1 true FR3063587B1 (fr) 2019-04-12

Family

ID=58707809

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1751791A Active FR3063587B1 (fr) 2017-03-06 2017-03-06 Oscillateur commande en tension

Country Status (1)

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FR (1) FR3063587B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797631A (en) * 1987-11-24 1989-01-10 Texas Instruments Incorporated Folded cascode amplifier with rail-to-rail common-mode range
FR2728743B1 (fr) * 1994-12-21 1997-03-14 Sgs Thomson Microelectronics Amplificateur a grande excursion de mode commun et a transconductance constante
US6605993B2 (en) * 2000-05-16 2003-08-12 Fujitsu Limited Operational amplifier circuit
US7315210B2 (en) * 2004-08-13 2008-01-01 Exar Corporation Differential operational amplifier
US7907022B2 (en) * 2009-04-23 2011-03-15 Freescale Semiconductor, Inc. Phase-locked loop and method for operating the same

Also Published As

Publication number Publication date
FR3063587A1 (fr) 2018-09-07

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