GB1462446A - Overload protection circuit for a transistor - Google Patents

Overload protection circuit for a transistor

Info

Publication number
GB1462446A
GB1462446A GB4581974A GB4581974A GB1462446A GB 1462446 A GB1462446 A GB 1462446A GB 4581974 A GB4581974 A GB 4581974A GB 4581974 A GB4581974 A GB 4581974A GB 1462446 A GB1462446 A GB 1462446A
Authority
GB
United Kingdom
Prior art keywords
transistor
resistor
overload protection
voltage limiter
protection circuit
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
Application number
GB4581974A
Other languages
English (en)
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.)
Honeywell GmbH
Original Assignee
Honeywell GmbH
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 Honeywell GmbH filed Critical Honeywell GmbH
Publication of GB1462446A publication Critical patent/GB1462446A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • 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
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0812—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
    • H03K17/08126—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit in bipolar transitor switches
    • 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
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08146—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Bipolar Transistors (AREA)
  • Amplifiers (AREA)
GB4581974A 1973-10-29 1974-10-23 Overload protection circuit for a transistor Expired GB1462446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732354054 DE2354054B2 (de) 1973-10-29 1973-10-29 Anordnung zum ueberlastungsschutz von transistoren

Publications (1)

Publication Number Publication Date
GB1462446A true GB1462446A (en) 1977-01-26

Family

ID=5896687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4581974A Expired GB1462446A (en) 1973-10-29 1974-10-23 Overload protection circuit for a transistor

Country Status (3)

Country Link
DE (1) DE2354054B2 (enrdf_load_stackoverflow)
FR (1) FR2249463B3 (enrdf_load_stackoverflow)
GB (1) GB1462446A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329726A (en) 1978-12-01 1982-05-11 Raychem Corporation Circuit protection devices comprising PTC elements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2733749B2 (de) * 1977-07-27 1981-01-29 Honeywell Gmbh, 6000 Frankfurt Überlastungsschutz für Transistoren
US4183020A (en) * 1977-09-19 1980-01-08 Rca Corporation Amplifier with field effect and bipolar transistors
US6188556B1 (en) 1998-10-22 2001-02-13 Shukri Souri Two-terminal transistor PTC circuit protection devices
US6181541B1 (en) * 1998-10-22 2001-01-30 Shukri Souri Transistor-PTC circuit protection devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329726A (en) 1978-12-01 1982-05-11 Raychem Corporation Circuit protection devices comprising PTC elements

Also Published As

Publication number Publication date
FR2249463B3 (enrdf_load_stackoverflow) 1977-07-29
DE2354054A1 (de) 1975-05-07
DE2354054B2 (de) 1976-02-19
FR2249463A1 (enrdf_load_stackoverflow) 1975-05-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee