ES2027290T3 - Circuito de corriente de llamada. - Google Patents
Circuito de corriente de llamada.Info
- Publication number
- ES2027290T3 ES2027290T3 ES198787301987T ES87301987T ES2027290T3 ES 2027290 T3 ES2027290 T3 ES 2027290T3 ES 198787301987 T ES198787301987 T ES 198787301987T ES 87301987 T ES87301987 T ES 87301987T ES 2027290 T3 ES2027290 T3 ES 2027290T3
- Authority
- ES
- Spain
- Prior art keywords
- capacitor
- coil
- current circuit
- call current
- switches
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/023—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone by reversing the polarity of the current at the exchange
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Dc-Dc Converters (AREA)
- Telephonic Communication Services (AREA)
- Devices For Supply Of Signal Current (AREA)
Abstract
LA INVENCION COMPRENDE UN CIRCUITO DE LLAMADA ELECTRONICA PARA SISTEMAS ELECTRONICOS. UN CAPACITOR (14) CONECTADO A UN CENTRO DE DERIVACION (B) DE UNA PRIMERA BOBINA (13) INDUCTIVAMENTE ACOPLADA A PRIMERA LINEA DE SUMINISTRO CONTROLADA POR UN TRANSISTOR (11). LA OTRA PARTE DEL CAPACITOR SE CONECTA A LA UNION ENTRE DOS CONMUTADORES (15,16), CADA UNO CONECTADO A UNA BOBINA DE INDUCCION (C;D) LAS CUALES ESTAN A SU VEZ CONECTADAS A LA PRIMERA BOBINA (13) POR LA QUE, CUANDO LOS CONMUTADORES CONMUTAN EN SENTIDOS OPUESTOS, CIRCULA CORRIENTE DE CARGA EN DIRECCIONES ALTERNATIVAS DESDE EL CAPACITOR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868606151A GB8606151D0 (en) | 1986-03-12 | 1986-03-12 | Telephone system circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2027290T3 true ES2027290T3 (es) | 1992-06-01 |
Family
ID=10594490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES198787301987T Expired - Lifetime ES2027290T3 (es) | 1986-03-12 | 1987-03-09 | Circuito de corriente de llamada. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4737989A (es) |
EP (1) | EP0237303B1 (es) |
CN (1) | CN1006353B (es) |
AU (1) | AU587109B2 (es) |
CA (1) | CA1268872A (es) |
DE (1) | DE3774300D1 (es) |
ES (1) | ES2027290T3 (es) |
GB (2) | GB8606151D0 (es) |
IN (1) | IN167616B (es) |
ZA (1) | ZA871717B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1272318A (en) * | 1986-10-20 | 1990-07-31 | Kenji Takato | Integrated ringing circuit and a ring trip circuit for the same |
GB9026504D0 (en) * | 1990-12-05 | 1991-01-23 | Plessey Telecomm | Telephone ringer circuit |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3904833A (en) * | 1973-06-04 | 1975-09-09 | Superior Continental Corp | Ringing generator circuit with capacitor storage |
IT1079588B (it) * | 1977-02-14 | 1985-05-13 | Sits Soc It Telecom Siemens | Generatore di chiamata statico per sistemi di telecomunicazioni |
US4354062A (en) * | 1980-01-31 | 1982-10-12 | Bell Telephone Laboratories, Incorporated | Communication system signaling circuit |
JPS5854773A (ja) * | 1981-09-28 | 1983-03-31 | Nec Corp | 加入者回路 |
FR2535558A1 (fr) * | 1982-10-27 | 1984-05-04 | Trt Telecom Radio Electr | Generateur de signal de sonnerie |
CA1197641A (en) * | 1983-08-26 | 1985-12-03 | David E. Dodds | Telephone line interface circuit |
JPS60178760A (ja) * | 1984-02-24 | 1985-09-12 | Shindengen Electric Mfg Co Ltd | 電話機用ベルの駆動用電源回路 |
US4656659A (en) * | 1985-07-18 | 1987-04-07 | Itt Corporation | Programmable ring signal generator |
CA1272318A (en) * | 1986-10-20 | 1990-07-31 | Kenji Takato | Integrated ringing circuit and a ring trip circuit for the same |
-
1986
- 1986-03-12 GB GB868606151A patent/GB8606151D0/en active Pending
-
1987
- 1987-03-06 IN IN204/DEL/87A patent/IN167616B/en unknown
- 1987-03-09 EP EP87301987A patent/EP0237303B1/en not_active Expired - Lifetime
- 1987-03-09 ES ES198787301987T patent/ES2027290T3/es not_active Expired - Lifetime
- 1987-03-09 DE DE8787301987T patent/DE3774300D1/de not_active Expired - Fee Related
- 1987-03-10 US US07/024,001 patent/US4737989A/en not_active Expired - Fee Related
- 1987-03-10 ZA ZA871717A patent/ZA871717B/xx unknown
- 1987-03-11 CA CA000531679A patent/CA1268872A/en not_active Expired - Fee Related
- 1987-03-11 GB GB8705703A patent/GB2187915B/en not_active Expired
- 1987-03-11 AU AU69926/87A patent/AU587109B2/en not_active Ceased
- 1987-03-12 CN CN87101944A patent/CN1006353B/zh not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CN1006353B (zh) | 1990-01-03 |
ZA871717B (en) | 1987-08-31 |
GB8705703D0 (en) | 1987-04-15 |
CN87101944A (zh) | 1987-09-23 |
EP0237303A1 (en) | 1987-09-16 |
US4737989A (en) | 1988-04-12 |
GB2187915B (en) | 1989-11-15 |
EP0237303B1 (en) | 1991-11-06 |
GB2187915A (en) | 1987-09-16 |
GB8606151D0 (en) | 1986-04-16 |
IN167616B (es) | 1990-11-24 |
CA1268872A (en) | 1990-05-08 |
DE3774300D1 (de) | 1991-12-12 |
AU6992687A (en) | 1987-09-17 |
AU587109B2 (en) | 1989-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU94030240A (ru) | Интеллектуальная лампа или "интеллектуальный" контактный вывод для лампы | |
KR890001408A (ko) | 가스 방전 램프점등용 dc-ac 변환기 | |
KR840008099A (ko) | 출력회로 | |
IT8322192A0 (it) | Circuito di pilotaggio di carico con rivelazione di corrente di carico. | |
SE304310B (es) | ||
ES2027290T3 (es) | Circuito de corriente de llamada. | |
SE8604820D0 (sv) | Anordning for att snabbt overfora strom till en induktiv belastning | |
DE3869558D1 (de) | Netzteil fuer ein elektronisches geraet mit kondensatorpufferung. | |
ATE67879T1 (de) | Elektrische schaltungsanordnung fuer zweidrahtstromschleife. | |
FR2372554A1 (fr) | Equipement de ligne d'abonne pour central telephonique | |
GB946362A (en) | Lamp switching circuit | |
SU1138937A1 (ru) | Бесконтактный путевой выключатель | |
KR840003165A (ko) | 게이트 다이오드 스위치용 제어회로 | |
FR1301744A (fr) | Dispositif d'éclairage sans contacts | |
ATE10242T1 (de) | Schutzschalter mit von aussen zugaenglichem summenstromwandler. | |
SU712863A1 (ru) | Двухвходовое устройство управлени электромагнитом | |
SU424312A1 (ru) | Спусковое пороговое устройство | |
SU450250A1 (ru) | Дугогасительное устройство посто нного тока | |
ES479429A1 (es) | Mejoras exn circuitos de retencion de linea telefonica. | |
GB1513182A (en) | Switching circuits | |
KR830005775A (ko) | 전자 스위칭 장치 | |
GB1401552A (en) | Emergency supply circuit | |
GB888176A (en) | Improvements in or relating to electrical circuits employing transistors | |
GB946496A (en) | Lamp switching circuit | |
JPS55158579A (en) | Electronic wrist watch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 237303 Country of ref document: ES |