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公开(公告)号:DE2502527A1
公开(公告)日:1975-07-31
申请号:DE2502527
申请日:1975-01-22
Applicant: CIT ALCATEL
Inventor: MIGEON RENE , LEGRAND YVES
Abstract: 1461235 Automatic current control COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 23 Jan 1975 [24 Jan 1974] 2933/75 Heading G3R A series transistor current regulator includes a current sensing resistor and a constant voltage diode supplied with stabilized current from a resistor network. The diode is connected to the base of the series transistor through the basecollector path of a second transistor and a second constant voltage diode. The base-emitter junction of a third transistor is connected across the series connection of the current sensing resistor and the first diode. As shown, a two-terminal network 2 is connected between a D.C. source 1 and a resistive load 3 in a repeatered telecommunications line. The current is sensed by a resistor 5, the potential across which controls the conductivity of a transistor 12, which in turn controls series transistor 4. A reference potential is provided by a Zener diode 10 which receives a constant current supply from a transistor 9, resistors 7, 11, 13, 14 and a second Zener diode 8. A parallel resistor 6 limits the power dissipated in the series transistor 4, and a pair of Zener diodes 17, 18 limit the total voltage across the network 2. Diodes 15, 16 provide temperature compensation. If a high supply voltage and/or low resistance load are used, several networks of the illustrated.type may be connected in series.
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公开(公告)号:FI750121A
公开(公告)日:1975-07-25
申请号:FI750121
申请日:1975-01-20
Applicant: CIT ALCATEL
Inventor: MIGEON RENE , LEGRAND YVES
Abstract: 1461235 Automatic current control COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 23 Jan 1975 [24 Jan 1974] 2933/75 Heading G3R A series transistor current regulator includes a current sensing resistor and a constant voltage diode supplied with stabilized current from a resistor network. The diode is connected to the base of the series transistor through the basecollector path of a second transistor and a second constant voltage diode. The base-emitter junction of a third transistor is connected across the series connection of the current sensing resistor and the first diode. As shown, a two-terminal network 2 is connected between a D.C. source 1 and a resistive load 3 in a repeatered telecommunications line. The current is sensed by a resistor 5, the potential across which controls the conductivity of a transistor 12, which in turn controls series transistor 4. A reference potential is provided by a Zener diode 10 which receives a constant current supply from a transistor 9, resistors 7, 11, 13, 14 and a second Zener diode 8. A parallel resistor 6 limits the power dissipated in the series transistor 4, and a pair of Zener diodes 17, 18 limit the total voltage across the network 2. Diodes 15, 16 provide temperature compensation. If a high supply voltage and/or low resistance load are used, several networks of the illustrated.type may be connected in series.
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公开(公告)号:FI59883B
公开(公告)日:1981-06-30
申请号:FI750121
申请日:1975-01-20
Applicant: CIT ALCATEL
Inventor: MIGEON RENE , LEGRAND YVES
Abstract: 1461235 Automatic current control COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 23 Jan 1975 [24 Jan 1974] 2933/75 Heading G3R A series transistor current regulator includes a current sensing resistor and a constant voltage diode supplied with stabilized current from a resistor network. The diode is connected to the base of the series transistor through the basecollector path of a second transistor and a second constant voltage diode. The base-emitter junction of a third transistor is connected across the series connection of the current sensing resistor and the first diode. As shown, a two-terminal network 2 is connected between a D.C. source 1 and a resistive load 3 in a repeatered telecommunications line. The current is sensed by a resistor 5, the potential across which controls the conductivity of a transistor 12, which in turn controls series transistor 4. A reference potential is provided by a Zener diode 10 which receives a constant current supply from a transistor 9, resistors 7, 11, 13, 14 and a second Zener diode 8. A parallel resistor 6 limits the power dissipated in the series transistor 4, and a pair of Zener diodes 17, 18 limit the total voltage across the network 2. Diodes 15, 16 provide temperature compensation. If a high supply voltage and/or low resistance load are used, several networks of the illustrated.type may be connected in series.
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公开(公告)号:CA1065259A
公开(公告)日:1979-10-30
申请号:CA273075
申请日:1977-03-03
Applicant: CIT ALCATEL
Inventor: MIGEON RENE
Abstract: Téléalimentation d'une ligne de transmission par câbles avec répéteurs soumise à l'influence de champs électriques externes comportant, dans le circuit local d'alimentation de chaque répéteur intercalé entre deux tronçons de ligne, au moins un transformateur de courant ayant deux enroulements primaires identiques, l'un intercalé dans une première dérivation reliant le conducteur interne d'un tronçon de ligne au conducteur externe de l'autre tronçon de ligne, l'autre intercalé dans une deuxième dérivation reliant les autres conducteurs des troncons de ligne. Elle s'applique à l'alimentation des répéteurs d'une ligne mono-coaxiale de transmission.
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公开(公告)号:DE1960740A1
公开(公告)日:1970-08-06
申请号:DE1960740
申请日:1969-12-03
Applicant: CIT ALCATEL
Inventor: MIGEON RENE
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公开(公告)号:DE1814331A1
公开(公告)日:1969-07-24
申请号:DE1814331
申请日:1968-12-12
Applicant: CIT ALCATEL
Inventor: MIGEON RENE
IPC: G01R27/28
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公开(公告)号:FI59883C
公开(公告)日:1981-10-12
申请号:FI750121
申请日:1975-01-20
Applicant: CIT ALCATEL
Inventor: MIGEON RENE , LEGRAND YVES
Abstract: 1461235 Automatic current control COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 23 Jan 1975 [24 Jan 1974] 2933/75 Heading G3R A series transistor current regulator includes a current sensing resistor and a constant voltage diode supplied with stabilized current from a resistor network. The diode is connected to the base of the series transistor through the basecollector path of a second transistor and a second constant voltage diode. The base-emitter junction of a third transistor is connected across the series connection of the current sensing resistor and the first diode. As shown, a two-terminal network 2 is connected between a D.C. source 1 and a resistive load 3 in a repeatered telecommunications line. The current is sensed by a resistor 5, the potential across which controls the conductivity of a transistor 12, which in turn controls series transistor 4. A reference potential is provided by a Zener diode 10 which receives a constant current supply from a transistor 9, resistors 7, 11, 13, 14 and a second Zener diode 8. A parallel resistor 6 limits the power dissipated in the series transistor 4, and a pair of Zener diodes 17, 18 limit the total voltage across the network 2. Diodes 15, 16 provide temperature compensation. If a high supply voltage and/or low resistance load are used, several networks of the illustrated.type may be connected in series.
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公开(公告)号:FR2469053A1
公开(公告)日:1981-05-08
申请号:FR7926614
申请日:1979-10-26
Applicant: CIT ALCATEL
Inventor: GRAND YVES LE , MIGEON RENE
IPC: H04B3/44
Abstract: The present invention is concerned with maintaining the power supply to equipments along at least a section of a transmission line in the event of said line being cut. Each equipment (5) along the line (1) is provided with a local power supply circuit (6,7,9) inserted in the remote power supply loop at the equipment under consideration. A looping impedance (10) is connected in series with the break contacts (11,12) of a controlled switch and parallel across the power supply loop in such a manner as to create a partial power supply loop through the local power supply circuit when the switch is closed. Control means are provided to close the switch in the event of a power failure in the local power supply circuit, and to open the switch again only once the downstream side of the power supply loop draws current above a predetermined threshold value. The above circuit operates for a power supply loop that includes an energy source at one end (E) only of the transmission line. A variant embodiment of the invention operates in a transmission line where power may be drawn from either end. The invention is applicable to transmission circuits that include at least one branch of a point to point connection.
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公开(公告)号:DK142662B
公开(公告)日:1980-12-08
申请号:DK20475
申请日:1975-01-23
Applicant: CIT ALCATEL
Inventor: MIGEON RENE , LEGRAND YVES
Abstract: 1461235 Automatic current control COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 23 Jan 1975 [24 Jan 1974] 2933/75 Heading G3R A series transistor current regulator includes a current sensing resistor and a constant voltage diode supplied with stabilized current from a resistor network. The diode is connected to the base of the series transistor through the basecollector path of a second transistor and a second constant voltage diode. The base-emitter junction of a third transistor is connected across the series connection of the current sensing resistor and the first diode. As shown, a two-terminal network 2 is connected between a D.C. source 1 and a resistive load 3 in a repeatered telecommunications line. The current is sensed by a resistor 5, the potential across which controls the conductivity of a transistor 12, which in turn controls series transistor 4. A reference potential is provided by a Zener diode 10 which receives a constant current supply from a transistor 9, resistors 7, 11, 13, 14 and a second Zener diode 8. A parallel resistor 6 limits the power dissipated in the series transistor 4, and a pair of Zener diodes 17, 18 limit the total voltage across the network 2. Diodes 15, 16 provide temperature compensation. If a high supply voltage and/or low resistance load are used, several networks of the illustrated.type may be connected in series.
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公开(公告)号:CA1085005A
公开(公告)日:1980-09-02
申请号:CA291374
申请日:1977-11-21
Applicant: CIT ALCATEL
Inventor: MARCHASSON BERNARD , MIGEON RENE
Abstract: : Régulateur de niveau à action continue sensible à l'amplitude d'une onde pilote incluse dans le signal dont le niveau est à réguler, comportant un quadripôle à gain variable traversé par ledit signal, une boucle de contrôle automatique de gain agissant sur un circuit de commande du gain du quadripôle à gain variable et une boucle auxiliaire grâce à laquelle le circuit de commande agit égale-ment en réaction sur la boucle de contrôle automatique de gain. Ledit régla-teur s'utilise avantageusement dans les systèmes de transmission.
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