CA2283892A1 - Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree - Google Patents

Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree Download PDF

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Publication number
CA2283892A1
CA2283892A1 CA002283892A CA2283892A CA2283892A1 CA 2283892 A1 CA2283892 A1 CA 2283892A1 CA 002283892 A CA002283892 A CA 002283892A CA 2283892 A CA2283892 A CA 2283892A CA 2283892 A1 CA2283892 A1 CA 2283892A1
Authority
CA
Canada
Prior art keywords
terminal
voltage
signal
current
coupled
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002283892A
Other languages
English (en)
Inventor
Tirdad Sowlati Hashjani
Mohammad Hossein Shakiba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gennum Corp
Original Assignee
Individual
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
Priority claimed from CA002201697A external-priority patent/CA2201697A1/fr
Application filed by Individual filed Critical Individual
Priority to CA002283892A priority Critical patent/CA2283892A1/fr
Publication of CA2283892A1 publication Critical patent/CA2283892A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2823—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistor of the same conductivity type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

L'invention se rapporte à un oscillateur à relaxation, tel qu'un oscillateur commandé en tension (VCO), présentant une rétroaction sur la commande automatique de l'excursion, rétroaction qui contrôle de manière dynamique l'écart de tension dans un condensateur et règle la tension seuil de l'oscillateur. On applique à cet oscillateur un renversement de polarité du courant de charge/décharge en vue de maintenir l'écart de tension effectif à un niveau constant. L'oscillateur à relaxation perfectionné assure une très large plage linéaire de variations de fréquence par rapport à une tension (ou un courant) de commande et permet l'extension du fonctionnement linéaire jusqu'à ou au voisinage de la fréquence maximale qui peut être atteinte, dans la pratique, par les circuits de l'oscillateur.
CA002283892A 1997-04-03 1998-04-01 Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree Abandoned CA2283892A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002283892A CA2283892A1 (fr) 1997-04-03 1998-04-01 Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002201697A CA2201697A1 (fr) 1997-04-03 1997-04-03 Oscillateur a relaxation a gamme de frequences elargie et a linearite amelioree
CA2,201,697 1997-04-03
PCT/CA1998/000294 WO1998045944A2 (fr) 1997-04-03 1998-04-01 Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree
CA002283892A CA2283892A1 (fr) 1997-04-03 1998-04-01 Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree

Publications (1)

Publication Number Publication Date
CA2283892A1 true CA2283892A1 (fr) 1998-10-15

Family

ID=31716370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002283892A Abandoned CA2283892A1 (fr) 1997-04-03 1998-04-01 Oscillateur a relaxation a plage de frequences etendue et presentant une linearite amelioree

Country Status (1)

Country Link
CA (1) CA2283892A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115389984A (zh) * 2022-08-15 2022-11-25 国网天津市电力公司 基于非震荡过阻尼特性的互感器极性识别装置及识别方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115389984A (zh) * 2022-08-15 2022-11-25 国网天津市电力公司 基于非震荡过阻尼特性的互感器极性识别装置及识别方法
CN115389984B (zh) * 2022-08-15 2024-08-02 国网天津市电力公司 基于非震荡过阻尼特性的互感器极性识别装置及识别方法

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued