FR2485295B1 - Circuit de commande d'impedance par reaction - Google Patents

Circuit de commande d'impedance par reaction

Info

Publication number: FR2485295B1
Authority: FR; France
Prior art keywords: reaction; control circuit; impedance control; impedance; circuit
Prior art date: 1980-06-20
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

FR8112136A

Other languages

English (en)

Other versions

FR2485295A1 (fr

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.)

Advanced Micro Devices Inc

Original Assignee

Advanced Micro Devices Inc

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.)

1980-06-20

Filing date

1981-06-19

Publication date

1985-11-15

1981-06-19 Application filed by Advanced Micro Devices Inc filed Critical Advanced Micro Devices Inc

1981-12-24 Publication of FR2485295A1 publication Critical patent/FR2485295A1/fr

1985-11-15 Application granted granted Critical

1985-11-15 Publication of FR2485295B1 publication Critical patent/FR2485295B1/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/586—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/28—Impedance matching networks
- H03H11/30—Automatic matching of source impedance to load impedance
- 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

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Power Engineering (AREA)
Interface Circuits In Exchanges (AREA)
Networks Using Active Elements (AREA)
Devices For Supply Of Signal Current (AREA)

FR8112136A 1980-06-20 1981-06-19 Circuit de commande d'impedance par reaction Expired FR2485295B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/161,489 US4359609A (en)	1980-06-20	1980-06-20	Circuit with feedback for controlling the impedance thereof

Publications (2)

Publication Number	Publication Date
FR2485295A1 FR2485295A1 (fr)	1981-12-24
FR2485295B1 true FR2485295B1 (fr)	1985-11-15

Family

ID=22581382

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8112136A Expired FR2485295B1 (fr)	1980-06-20	1981-06-19	Circuit de commande d'impedance par reaction

Country Status (6)

Country	Link
US (1)	US4359609A (fr)
JP (1)	JPS5731220A (fr)
DE (1)	DE3118841C2 (fr)
FR (1)	FR2485295B1 (fr)
GB (2)	GB2081042B (fr)
NL (1)	NL8102962A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2104330A (en) *	1981-08-19	1983-03-02	Texas Instruments Ltd	Improvements in or relating to amplifiers
US4600811A (en) *	1982-12-28	1986-07-15	Nec Corporation	Subscriber line interface circuit
JPS59125157A (ja) *	1982-12-30	1984-07-19	Fujitsu Ltd	給電回路
US4550226A (en) *	1983-05-02	1985-10-29	Gte Communication Systems Corporation	Subscriber's telephone circuit arranged to present constant impedance to a telephone line
CA1200938A (fr) *	1983-09-30	1986-02-18	Mitel Corporation	Circuit d'interface pour signaux vocaux et de donnees
US4532381A (en) *	1984-02-13	1985-07-30	Northern Telecom Limited	Active impedance line feed circuit
US4706281A (en) *	1984-04-30	1987-11-10	American Telephone And Telegraph Company	Dynamic impedance element for a battery feed circuit
JPS6181062A (ja) *	1984-09-28	1986-04-24	Toshiba Corp	局線インタフエイス回路
JPS61212991A (ja) *	1985-03-18	1986-09-20	Nitsuko Ltd	ボタン電話装置
DE3942757A1 (de) *	1989-12-23	1991-06-27	Standard Elektrik Lorenz Ag	Summierverstaerker mit einem komplexen gewichtungsfaktor und schnittstelle mit einem solchen summierverstaerker
JP2999214B2 (ja) *	1990-03-02	2000-01-17	株式会社東芝	伝送入出力回路
US5266905A (en) *	1992-05-29	1993-11-30	Audio Research Corporation	Audio amplifier with amplified feedback
GB2320380B (en) *	1996-12-11	2001-09-12	Nokia Mobile Phones Ltd	A telephone line interface
US6181792B1 (en)	1998-01-23	2001-01-30	International Business Machines Corporation	Communication interface having synthesized matching impedances for different frequency bands and a design method therefor
US6198817B1 (en)	1998-01-23	2001-03-06	International Business Machines Corporation	Communication interface having combined shaping of receive response and synthesized matching terminating impedances for different frequency bands and a design method therefor
GB9910454D0 (en) *	1999-05-07	1999-07-07	Koninkl Philips Electronics Nv	Circuit arrangement providing impedance translation filtering
US6731749B1 (en) *	1999-05-14	2004-05-04	Conexant Systems, Inc.	Telephone line interface circuit with intelligent line current and voltage control
US6647114B1 (en) *	1999-05-14	2003-11-11	Conexant Systems, Inc.	Telephone line interface circuit with virtual impedance
US6509755B2 (en) *	2000-02-29	2003-01-21	Schlumberger Technology Corporation	Method and device for active impedance matching
US6593726B1 (en) *	2002-02-15	2003-07-15	Micron Technology, Inc.	Voltage converter system and method having a stable output voltage
CN115441850B (zh) *	2022-11-08	2023-01-17	深圳市恒运昌真空技术有限公司	一种射频电源系统的阻抗匹配方法、装置及电源系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL294136A (fr) *	1962-03-01
US3731012A (en) *	1971-09-30	1973-05-01	Stromberg Carlson Corp	Current limiting and resistance monitoring circuit
US3870896A (en) *	1972-10-30	1975-03-11	Lorain Prod Corp	Controllable current source
CH595724A5 (fr) *	1975-06-18	1978-02-28	Siemens Ag Albis
FR2437757A2 (fr) *	1978-06-26	1980-04-25	Trt Telecom Radio Electr	Joncteur d'abonne destine a assurer un couplage en deux fils ou quatre fils avec un central telephonique

1980
- 1980-06-20 US US06/161,489 patent/US4359609A/en not_active Expired - Lifetime
1981
- 1981-05-12 DE DE3118841A patent/DE3118841C2/de not_active Revoked
- 1981-06-02 GB GB8116854A patent/GB2081042B/en not_active Expired
- 1981-06-02 GB GB08218072A patent/GB2100949B/en not_active Expired
- 1981-06-17 JP JP9369281A patent/JPS5731220A/ja active Granted
- 1981-06-19 NL NL8102962A patent/NL8102962A/nl active Search and Examination
- 1981-06-19 FR FR8112136A patent/FR2485295B1/fr not_active Expired

Also Published As

Publication number	Publication date
DE3118841A1 (de)	1982-01-28
FR2485295A1 (fr)	1981-12-24
GB2100949B (en)	1984-06-27
DE3118841C2 (de)	1994-12-08
JPS5731220A (en)	1982-02-19
GB2100949A (en)	1983-01-06
GB2081042B (en)	1984-06-27
GB2081042A (en)	1982-02-10
JPH0147933B2 (fr)	1989-10-17
NL8102962A (nl)	1982-01-18
US4359609A (en)	1982-11-16

Publication	Publication Date	Title
FR2485295B1 (fr)	1985-11-15	Circuit de commande d'impedance par reaction
FR2478904B1 (fr)	1986-10-03	Circuit de commande de gain
FR2490897B1 (fr)	1986-01-24	Circuit de commande de signal
FR2542497B1 (fr)	1987-03-20	Dispositif de commande lineaire hybride
FR2537734B1 (fr)	1987-07-31	Dispositif de commande d'objectif
FR2488943B1 (fr)	1987-08-14	Circuit de commande hydraulique integre
BE882417A (fr)	1980-09-25	Circuit hydraulique de commande d'un dispositif de mise en action
IT7923800A0 (it)	1979-06-22	Unita' di comando elettronica.
FR2528502B1 (fr)	1987-01-09	Dispositif de commande hydraulique
FR2561049B1 (fr)	1993-03-05	Circuit de commande d'un initiateur d'approche
GB2133944B (en)	1985-02-20	Gain control circuit
GB2075729B (en)	1984-08-08	Microprogramm control circuit
FR2494525B1 (fr)	1986-07-18	Circuit de commande de tonalite
FR2490160B1 (fr)	1988-03-04	Procede de commande de volume d'air
BE852408A (fr)	1977-07-01	Mecanisme de commande d'un disjoncteur
FR2505064B1 (fr)	1986-02-14	Transmetteur de commande
IT7820494A0 (it)	1978-02-21	Dispositivo circuitale per il controllo dell'amplificazione.
BE889780A (fr)	1981-11-16	Circuit de controle d'impulsions
FR2493411B1 (fr)	1987-12-04	Dispositif de commande d'allumage
DE3072119D1 (en)	1988-09-29	Control circuit
BE863152A (fr)	1978-05-16	Systeme de commande d'ascenseurs
JPS57162577A (en)	1982-10-06	Field deflecting control circuit
FR2486747B1 (fr)	1986-09-19	Circuit de commande de deflection
ES267293Y (es)	1983-09-16	"aparato de cable de control".
FR2526115B1 (fr)	1987-05-29	Robinet de commande