FR2237342B1 - - Google Patents

Info

Publication number
FR2237342B1
FR2237342B1 FR7424415A FR7424415A FR2237342B1 FR 2237342 B1 FR2237342 B1 FR 2237342B1 FR 7424415 A FR7424415 A FR 7424415A FR 7424415 A FR7424415 A FR 7424415A FR 2237342 B1 FR2237342 B1 FR 2237342B1
Authority
FR
France
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
FR7424415A
Other versions
FR2237342A1 (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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2237342A1 publication Critical patent/FR2237342A1/fr
Application granted granted Critical
Publication of FR2237342B1 publication Critical patent/FR2237342B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • 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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
FR7424415A 1973-07-12 1974-07-12 Expired FR2237342B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7895473A JPS561868B2 (fr) 1973-07-12 1973-07-12

Publications (2)

Publication Number Publication Date
FR2237342A1 FR2237342A1 (fr) 1975-02-07
FR2237342B1 true FR2237342B1 (fr) 1981-10-09

Family

ID=13676267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7424415A Expired FR2237342B1 (fr) 1973-07-12 1974-07-12

Country Status (8)

Country Link
US (1) US3935513A (fr)
JP (1) JPS561868B2 (fr)
CA (1) CA1032230A (fr)
DE (1) DE2433617C2 (fr)
FR (1) FR2237342B1 (fr)
GB (1) GB1471673A (fr)
IT (1) IT1017144B (fr)
NL (1) NL187878C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168758A (en) * 1974-12-11 1976-06-14 Sony Corp Zofukukairono hogokairo
US3987342A (en) * 1975-11-24 1976-10-19 Altec Corporation Protective circuit utilizing multilevel power supply output
JPS583601B2 (ja) * 1976-09-27 1983-01-22 株式会社日立製作所 スピ−カ保護回路
JPS6047771B2 (ja) * 1977-09-20 1985-10-23 ソニー株式会社 増幅器の過負荷保護装置
US4330686A (en) * 1978-12-21 1982-05-18 Stephen Roe Loudspeaker systems
FR2498844A1 (fr) * 1981-01-27 1982-07-30 Thomson Brandt Dispositif de protection thermique d'un amplificateur de puissance en classe b, c, d ou ab et amplificateur comportant un tel dispositif
IT1218841B (it) * 1984-01-23 1990-04-24 Ates Componenti Elettron Dispositivo di protezione per uno stadio finale in push-pull, contro il cortocircuito tra il terminale di uscita ed il polo positivo dell'alimentazione
DE3632077A1 (de) * 1986-05-23 1987-11-26 Thomson Brandt Gmbh Schaltungsanordnung zum schutz vor ueberlastung einer gegentaktendstufe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493878A (en) * 1967-02-03 1970-02-03 Sperry Rand Corp Self-resetting overload protection circuit for transistors
US3522480A (en) * 1968-02-02 1970-08-04 Us Navy Protection circuit for power transistor
US3555358A (en) * 1969-10-08 1971-01-12 Ltv Ling Altec Inc Overload protection network for solid state amplifier
SE353821B (fr) * 1970-02-09 1973-02-12 Asea Ab
JPS5027344B1 (fr) * 1970-03-26 1975-09-06
US3646397A (en) * 1970-04-13 1972-02-29 Motorola Inc Amplifier protection circuit responsive to temperature and overcurrent
US3731153A (en) * 1970-08-27 1973-05-01 Sansui Electric Co Protective device for loudspeaker
US3792313A (en) * 1972-10-02 1974-02-12 Ite Imperial Corp Timing control circuit for solid state protective relays for providing novel control of the pickup and timing circuits provided therein
US3794858A (en) * 1972-12-13 1974-02-26 Texas Instruments Inc Off delay timer and ptc sensing circuit

Also Published As

Publication number Publication date
DE2433617A1 (de) 1975-01-30
NL7409352A (nl) 1975-01-14
CA1032230A (fr) 1978-05-30
NL187878C (nl) 1992-02-03
AU7092174A (en) 1976-01-08
FR2237342A1 (fr) 1975-02-07
IT1017144B (it) 1977-07-20
JPS561868B2 (fr) 1981-01-16
GB1471673A (en) 1977-04-27
JPS5027056A (fr) 1975-03-20
NL187878B (nl) 1991-09-02
DE2433617C2 (de) 1983-07-28
US3935513A (en) 1976-01-27

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