FR2371079A1 - Installation de protection contre les surintensites de courant pour un transistor de commutation - Google Patents
Installation de protection contre les surintensites de courant pour un transistor de commutationInfo
- Publication number
- FR2371079A1 FR2371079A1 FR7734024A FR7734024A FR2371079A1 FR 2371079 A1 FR2371079 A1 FR 2371079A1 FR 7734024 A FR7734024 A FR 7734024A FR 7734024 A FR7734024 A FR 7734024A FR 2371079 A1 FR2371079 A1 FR 2371079A1
- Authority
- FR
- France
- Prior art keywords
- switching transistor
- current protection
- load
- protection installation
- overcurrent current
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Electronic Switches (AREA)
Abstract
a. Installation de protection contre les surintensités de courant pour un transistor de commutation. b. Installation caractérisée en ce que la charge GL placée dans le circuit de charge du transistor de commutation T1 est disposée entre l'émetteur et l'une des bornes K2 de la source de tension du circuit de charge, et l'émetteur du transistor de commutation relié à l'autre borne K1 de la source de tension par l'intermédiaire d'une résistance R4 produisant une tension initiale pour la charge GL à commuter, un couplage de réaction comportant au moins un transistor T3 étant prévu au circuit d'entrée du transistor de commutation. c. Application dans le cas de charges à commuter consistant en des lampes à incandescence.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1438376A CH601949A5 (fr) | 1976-11-16 | 1976-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2371079A1 true FR2371079A1 (fr) | 1978-06-09 |
FR2371079B1 FR2371079B1 (fr) | 1982-12-31 |
Family
ID=4400352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7734024A Granted FR2371079A1 (fr) | 1976-11-16 | 1977-11-10 | Installation de protection contre les surintensites de courant pour un transistor de commutation |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE860258A (fr) |
CH (1) | CH601949A5 (fr) |
DE (1) | DE2747683C2 (fr) |
FR (1) | FR2371079A1 (fr) |
GB (1) | GB1547027A (fr) |
IT (1) | IT1087444B (fr) |
LU (1) | LU78510A1 (fr) |
NL (1) | NL190176C (fr) |
NO (1) | NO146795C (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0032985A2 (fr) * | 1979-12-27 | 1981-08-05 | International Business Machines Corporation | Circuit de commande de ligne avec protection contre les courts-circuits |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3432680A1 (de) * | 1984-09-05 | 1986-03-13 | Pepperl & Fuchs Gmbh & Co Kg, 6800 Mannheim | Schutzschaltung gegen ueberlast und kurzschluss |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578983A (en) * | 1968-06-25 | 1971-05-18 | Nippon Denso Co | Transistor-protecting circuit |
US3777185A (en) * | 1972-10-18 | 1973-12-04 | Bell Telephone Labor Inc | Minimization and limiting of power dissipation in multivibrators and the like |
FR2307967A1 (fr) * | 1975-04-15 | 1976-11-12 | Bosch Gmbh Robert | Dispositif de commande electrique avec une protection contre les mises a la masse |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1613894C3 (de) * | 1967-02-28 | 1974-10-24 | Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm | Überlastungsschutzschaltungsanordnung für einen eine Last speisenden Schalttransistor |
DE2037498A1 (de) * | 1970-07-29 | 1972-02-03 | Kiepe Bahn Elektrik Gmbh | Kurzschlußschutz für ein elektronisches Steuergerat |
DE2504923B2 (de) * | 1975-02-06 | 1977-03-03 | Fa. Diehl, 8500 Nürnberg | Schutzanordnung fuer eine elektronische ansteuerungsschaltung fuer anzeigelampen |
-
1976
- 1976-11-16 CH CH1438376A patent/CH601949A5/xx not_active IP Right Cessation
-
1977
- 1977-10-25 DE DE2747683A patent/DE2747683C2/de not_active Expired
- 1977-10-28 BE BE182169A patent/BE860258A/fr not_active IP Right Cessation
- 1977-10-31 NL NLAANVRAGE7711960,A patent/NL190176C/xx not_active IP Right Cessation
- 1977-11-10 GB GB46812/77A patent/GB1547027A/en not_active Expired
- 1977-11-10 FR FR7734024A patent/FR2371079A1/fr active Granted
- 1977-11-14 LU LU78510A patent/LU78510A1/xx unknown
- 1977-11-15 NO NO773919A patent/NO146795C/no unknown
- 1977-11-15 IT IT29701/77A patent/IT1087444B/it active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578983A (en) * | 1968-06-25 | 1971-05-18 | Nippon Denso Co | Transistor-protecting circuit |
US3777185A (en) * | 1972-10-18 | 1973-12-04 | Bell Telephone Labor Inc | Minimization and limiting of power dissipation in multivibrators and the like |
FR2307967A1 (fr) * | 1975-04-15 | 1976-11-12 | Bosch Gmbh Robert | Dispositif de commande electrique avec une protection contre les mises a la masse |
Non-Patent Citations (1)
Title |
---|
EXBK/76 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0032985A2 (fr) * | 1979-12-27 | 1981-08-05 | International Business Machines Corporation | Circuit de commande de ligne avec protection contre les courts-circuits |
EP0032985A3 (en) * | 1979-12-27 | 1981-12-30 | International Business Machines Corporation | Line driver circuit with short circuit protection |
Also Published As
Publication number | Publication date |
---|---|
DE2747683A1 (de) | 1978-05-24 |
IT1087444B (it) | 1985-06-04 |
CH601949A5 (fr) | 1978-07-14 |
DE2747683C2 (de) | 1985-07-04 |
NL190176C (nl) | 1993-11-16 |
NO773919L (no) | 1978-05-18 |
BE860258A (fr) | 1978-02-15 |
NO146795B (no) | 1982-08-30 |
NO146795C (no) | 1982-12-08 |
NL190176B (nl) | 1993-06-16 |
NL7711960A (nl) | 1978-05-18 |
LU78510A1 (fr) | 1978-03-20 |
FR2371079B1 (fr) | 1982-12-31 |
GB1547027A (en) | 1979-06-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |