CA1190682A - Circuit d'alimentation de ligne pour circuit a impedance negative - Google Patents

Circuit d'alimentation de ligne pour circuit a impedance negative

Info

Publication number
CA1190682A
CA1190682A CA000420548A CA420548A CA1190682A CA 1190682 A CA1190682 A CA 1190682A CA 000420548 A CA000420548 A CA 000420548A CA 420548 A CA420548 A CA 420548A CA 1190682 A CA1190682 A CA 1190682A
Authority
CA
Canada
Prior art keywords
circuit
inverting input
circuit unit
amplifier
negative impedance
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.)
Expired
Application number
CA000420548A
Other languages
English (en)
Inventor
Magdy H. Keriakos
Stanley D. Rosenbaum
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA000420548A priority Critical patent/CA1190682A/fr
Application granted granted Critical
Publication of CA1190682A publication Critical patent/CA1190682A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers
CA000420548A 1983-01-31 1983-01-31 Circuit d'alimentation de ligne pour circuit a impedance negative Expired CA1190682A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000420548A CA1190682A (fr) 1983-01-31 1983-01-31 Circuit d'alimentation de ligne pour circuit a impedance negative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000420548A CA1190682A (fr) 1983-01-31 1983-01-31 Circuit d'alimentation de ligne pour circuit a impedance negative

Publications (1)

Publication Number Publication Date
CA1190682A true CA1190682A (fr) 1985-07-16

Family

ID=4124451

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000420548A Expired CA1190682A (fr) 1983-01-31 1983-01-31 Circuit d'alimentation de ligne pour circuit a impedance negative

Country Status (1)

Country Link
CA (1) CA1190682A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346874A2 (fr) * 1988-06-15 1989-12-20 Siemens Aktiengesellschaft Circuit téléphonique utilisant un transformateur bloqué pour le courant continu et utilisant la technique d'impédance négative

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346874A2 (fr) * 1988-06-15 1989-12-20 Siemens Aktiengesellschaft Circuit téléphonique utilisant un transformateur bloqué pour le courant continu et utilisant la technique d'impédance négative
EP0346874A3 (fr) * 1988-06-15 1991-09-18 Siemens Aktiengesellschaft Circuit téléphonique utilisant un transformateur bloqué pour le courant continu et utilisant la technique d'impédance négative

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry