ES8703701A1 - Un amplificador de banda ancha y alta tension para abonados de centrales telefonicas - Google Patents
Un amplificador de banda ancha y alta tension para abonados de centrales telefonicasInfo
- Publication number
- ES8703701A1 ES8703701A1 ES542096A ES542096A ES8703701A1 ES 8703701 A1 ES8703701 A1 ES 8703701A1 ES 542096 A ES542096 A ES 542096A ES 542096 A ES542096 A ES 542096A ES 8703701 A1 ES8703701 A1 ES 8703701A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- error signal
- high voltage
- subscriber line
- band high
- 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
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
- H04M19/008—Using DC/DC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Abstract
AMPLIFICADOR DE BANDA ANCHA Y ALTA TENSION PARA ABONADOS DE CENTRALES TELEFONICAS. EL AMPLIFICADOR EMPLEA UN CONVERTIDOR CONMUTADO ASIMETRICO. EL AMPLIFICADOR OPERACIONAL ACTUA COMO UN ELEMENTO INTERMEDIO ENTRE EL BUCLE DE ABONADO Y LA CENTRAL TELEFONICA. ESTE AMPLIFICADOR ES DE ALTO VOLTAJE Y REALIZA LAS OPERACIONES DE ALTA POTENCIA PARA IMPLEMENTAR LA FUNCION DE LA CORRIENTE DE LLAMADA. LA IMPEDANCIA (11) DESIGNADA POR RL REPRESENTA EL BUCLE DE ABONADO O LA LINEA DE ABONADO. EL AMPLIFICADOR (12) TRABAJA COMO BUFFER Y SUS ENTRADAS SE ENCUENTRAN CONECTADAS A LOS TERMINALES DEL BUCLE DE ABONADO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/598,650 US4674119A (en) | 1984-04-10 | 1984-04-10 | Wide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitry |
Publications (2)
Publication Number | Publication Date |
---|---|
ES542096A0 ES542096A0 (es) | 1987-01-16 |
ES8703701A1 true ES8703701A1 (es) | 1987-01-16 |
Family
ID=24396401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES542096A Expired ES8703701A1 (es) | 1984-04-10 | 1985-04-10 | Un amplificador de banda ancha y alta tension para abonados de centrales telefonicas |
Country Status (7)
Country | Link |
---|---|
US (1) | US4674119A (es) |
EP (1) | EP0158290B1 (es) |
JP (1) | JPS60230708A (es) |
CA (1) | CA1234646A (es) |
DE (1) | DE3578595D1 (es) |
ES (1) | ES8703701A1 (es) |
MX (1) | MX157710A (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4761812A (en) * | 1985-12-10 | 1988-08-02 | U.S. Holding Company, Inc. | Constant power telephone line circuit |
DE3719791A1 (de) * | 1987-06-13 | 1988-12-22 | Standard Elektrik Lorenz Ag | Teilnehmeranschlussschaltung |
US5103387A (en) * | 1991-01-31 | 1992-04-07 | Northern Telecom Limited | High voltage converter |
JPH0619315U (ja) * | 1992-08-10 | 1994-03-11 | 明電通信工業株式会社 | 表面実装形圧電振動子 |
US5589744A (en) * | 1995-07-13 | 1996-12-31 | Sgs-Thomson Microelectronics, Inc. | Slew rate control circuit for a lowside driver of a DC motor |
JPH10336711A (ja) * | 1997-03-31 | 1998-12-18 | Fujitsu Ltd | アナログ・ディジタル統合加入者回路 |
AU5171000A (en) | 1999-05-28 | 2000-12-18 | Broadcom Corporation | Slic architecture and interfaces |
US6735302B1 (en) | 1999-05-28 | 2004-05-11 | Broadcom Corporation | DSP based SLIC architecture with current-sensing voltage synthesis impedance matching and DC feed control |
US6407603B2 (en) * | 1999-09-20 | 2002-06-18 | Lockheed Martin Corporation | Analog voltage isolation circuit |
EP1213907B1 (en) * | 2000-12-11 | 2011-05-18 | Texas Instruments Inc. | switched mode current feed methods for telephony subcriber loops |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL279505A (es) * | 1961-06-08 | |||
US3334243A (en) * | 1964-04-30 | 1967-08-01 | Gen Electric | Semiconductor timing networks |
JPS5829646B2 (ja) * | 1974-11-02 | 1983-06-24 | ソニー株式会社 | パルス幅変調増幅器 |
US4071877A (en) * | 1975-10-31 | 1978-01-31 | Ncr Corporation | Drive circuit |
FR2356328A1 (fr) * | 1976-06-24 | 1978-01-20 | Ibm France | Dispositif d'elimination du bruit dans les reseaux photosensibles a auto-balayage |
NL7903662A (nl) * | 1979-05-10 | 1980-11-12 | Philips Nv | Lijncircuit. |
US4315106A (en) * | 1979-11-28 | 1982-02-09 | International Telephone And Telegraph Corporation | Apparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systems |
GB2071461B (en) * | 1980-02-14 | 1984-01-25 | Standard Telephones Cables Ltd | Telephone line feed |
US4349703A (en) * | 1980-03-31 | 1982-09-14 | International Telephone And Telegraph Corporation | Programmable ring signal generator |
US4387273A (en) * | 1980-08-25 | 1983-06-07 | International Telephone And Telegraph Corporation | Subscriber line interface circuit with impedance synthesizer |
US4431868A (en) * | 1981-07-09 | 1984-02-14 | International Telephone And Telegraph Corporation | Solid state telephone line interface circuit with ringing capability |
GB2104330A (en) * | 1981-08-19 | 1983-03-02 | Texas Instruments Ltd | Improvements in or relating to amplifiers |
JPS5854773A (ja) * | 1981-09-28 | 1983-03-31 | Nec Corp | 加入者回路 |
CA1157124A (en) * | 1981-11-18 | 1983-11-15 | David G. Agnew | Hybrid circuit including capacitive charge-transfer means |
US4546421A (en) * | 1984-03-28 | 1985-10-08 | United Technologies Corporation | Flyback feedforward pulse width modulation regulator |
-
1984
- 1984-04-10 US US06/598,650 patent/US4674119A/en not_active Expired - Fee Related
-
1985
- 1985-03-13 CA CA000476343A patent/CA1234646A/en not_active Expired
- 1985-04-04 EP EP85104130A patent/EP0158290B1/en not_active Expired - Lifetime
- 1985-04-04 DE DE8585104130T patent/DE3578595D1/de not_active Expired - Lifetime
- 1985-04-10 JP JP60074529A patent/JPS60230708A/ja active Granted
- 1985-04-10 MX MX204898A patent/MX157710A/es unknown
- 1985-04-10 ES ES542096A patent/ES8703701A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
MX157710A (es) | 1988-12-09 |
EP0158290B1 (en) | 1990-07-11 |
US4674119A (en) | 1987-06-16 |
JPS60230708A (ja) | 1985-11-16 |
JPH0553322B2 (es) | 1993-08-09 |
ES542096A0 (es) | 1987-01-16 |
EP0158290A2 (en) | 1985-10-16 |
EP0158290A3 (en) | 1987-01-21 |
DE3578595D1 (de) | 1990-08-16 |
CA1234646A (en) | 1988-03-29 |
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