FR2378255A1 - Circuit de mise a feu d'etoupilles, protege contre les surintensites - Google Patents

Circuit de mise a feu d'etoupilles, protege contre les surintensites

Info

Publication number
FR2378255A1
FR2378255A1 FR7701983A FR7701983A FR2378255A1 FR 2378255 A1 FR2378255 A1 FR 2378255A1 FR 7701983 A FR7701983 A FR 7701983A FR 7701983 A FR7701983 A FR 7701983A FR 2378255 A1 FR2378255 A1 FR 2378255A1
Authority
FR
France
Prior art keywords
firing
electrical circuit
short circuits
mines
mine
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
Application number
FR7701983A
Other languages
English (en)
Other versions
FR2378255B3 (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.)
MAUREL ETS
Original Assignee
MAUREL ETS
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.)
Filing date
Publication date
Application filed by MAUREL ETS filed Critical MAUREL ETS
Priority to FR7701983A priority Critical patent/FR2378255A1/fr
Publication of FR2378255A1 publication Critical patent/FR2378255A1/fr
Application granted granted Critical
Publication of FR2378255B3 publication Critical patent/FR2378255B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
    • H02H3/243—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage for DC systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04—Modifications for accelerating switching
    • 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

  • Amplifiers (AREA)
  • Electronic Switches (AREA)

Abstract

L'invention concerne un circuit de mise à feu d'étoupilles. Le circuit est apte à déclencher la mise à feu de l'étoupille et à opérer une disjonction automatique si l'étoupille se met en court-circuit après mise à feu : un transistor Q2 sert à déclencher transitoirement la conduction d'un transistor principal Q1; la polarisation du transistor Q2 est ensuite maintenue grâce à une Zener Z1 tant que l'étoupille 14 n'est pas en court-circuit. Application : mise à feu de charges explosives.
FR7701983A 1977-01-25 1977-01-25 Circuit de mise a feu d'etoupilles, protege contre les surintensites Granted FR2378255A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7701983A FR2378255A1 (fr) 1977-01-25 1977-01-25 Circuit de mise a feu d'etoupilles, protege contre les surintensites

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7701983A FR2378255A1 (fr) 1977-01-25 1977-01-25 Circuit de mise a feu d'etoupilles, protege contre les surintensites

Publications (2)

Publication Number Publication Date
FR2378255A1 true FR2378255A1 (fr) 1978-08-18
FR2378255B3 FR2378255B3 (fr) 1979-09-21

Family

ID=9185863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7701983A Granted FR2378255A1 (fr) 1977-01-25 1977-01-25 Circuit de mise a feu d'etoupilles, protege contre les surintensites

Country Status (1)

Country Link
FR (1) FR2378255A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515375A1 (fr) * 1981-10-26 1983-04-29 Owens Illinois Inc Circuit de commande et d'alarme avec protection contre les courts-circuits pour un solenoide dans une machine de formage d'articles en verre
FR2548840A1 (fr) * 1983-07-08 1985-01-11 Peugeot Commutateur disjoncteur statique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515375A1 (fr) * 1981-10-26 1983-04-29 Owens Illinois Inc Circuit de commande et d'alarme avec protection contre les courts-circuits pour un solenoide dans une machine de formage d'articles en verre
FR2548840A1 (fr) * 1983-07-08 1985-01-11 Peugeot Commutateur disjoncteur statique

Also Published As

Publication number Publication date
FR2378255B3 (fr) 1979-09-21

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