CA1022467A - Load protective circuit - Google Patents

Load protective circuit

Info

Publication number
CA1022467A
CA1022467A CA226,969A CA226969A CA1022467A CA 1022467 A CA1022467 A CA 1022467A CA 226969 A CA226969 A CA 226969A CA 1022467 A CA1022467 A CA 1022467A
Authority
CA
Canada
Prior art keywords
protective circuit
load protective
load
circuit
protective
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
CA226,969A
Other languages
English (en)
French (fr)
Inventor
Toshihiko Miyata
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
Priority claimed from JP5774974U external-priority patent/JPS5432437Y2/ja
Priority claimed from JP5774974A external-priority patent/JPS5419315B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1022467A publication Critical patent/CA1022467A/en
Expired 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
    • H02H3/02—Details
    • H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
    • H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
    • 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
    • H02H3/50—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 the appearance of abnormal wave forms, e.g. ac in dc installations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CA226,969A 1974-05-21 1975-05-14 Load protective circuit Expired CA1022467A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5774974U JPS5432437Y2 (zh) 1974-05-21 1974-05-21
JP5774974A JPS5419315B2 (zh) 1973-05-30 1974-05-22

Publications (1)

Publication Number Publication Date
CA1022467A true CA1022467A (en) 1977-12-13

Family

ID=26398818

Family Applications (1)

Application Number Title Priority Date Filing Date
CA226,969A Expired CA1022467A (en) 1974-05-21 1975-05-14 Load protective circuit

Country Status (6)

Country Link
US (1) US4010402A (zh)
CA (1) CA1022467A (zh)
DE (1) DE2522528A1 (zh)
FR (1) FR2272512B1 (zh)
GB (1) GB1497690A (zh)
NL (1) NL7505985A (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425145A (en) * 1977-07-28 1979-02-24 Sony Corp Detection circuit for unbalanced dc voltage of output amplifier on two-power- supply system
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
US4255748A (en) * 1979-02-12 1981-03-10 Automation Systems, Inc. Bus fault detector
DE2937780A1 (de) * 1979-09-19 1981-04-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektronische sicherung fuer endverstaerker mit mos-fet-endtransistoren
DE3017369A1 (de) * 1980-05-07 1981-11-12 Licentia Gmbh Spannungswandler zur umwandlung einer gleichspannung in eine netzspannung
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
US5237421A (en) * 1990-08-27 1993-08-17 Thomson Consumer Electronics, Inc. Shutdown system in a television receiver
ITMI911744A1 (it) * 1990-08-27 1991-10-03 Thomson Consumer Electronics Sistema di disattivazione in un ricevitore di televisione
DE69123598T2 (de) * 1990-10-12 1997-06-19 Raychem Ltd Schaltungsschutzeinrichtung
GB9100283D0 (en) * 1991-01-07 1991-02-20 Raychem Ltd Overcurrent protection device
US5319515A (en) * 1990-10-12 1994-06-07 Raychem Limited Circuit protection arrangement
US5224169A (en) * 1991-05-13 1993-06-29 Thomson Consumer Electronics, Inc. Protection arrangement for an audio output channel
US6636118B1 (en) * 1999-09-06 2003-10-21 Hitachi, Ltd. High-frequency power amplification module and radio communication device
US9035642B2 (en) 2011-06-30 2015-05-19 Semiconductor Components Industries, Llc Circuits for detecting AC- or DC-coupled loads

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544720A (en) * 1969-03-26 1970-12-01 Mcintosh Lab Inc Protective circuit for loudspeaker
JPS5443345B1 (zh) * 1969-08-28 1979-12-19
US3555358A (en) * 1969-10-08 1971-01-12 Ltv Ling Altec Inc Overload protection network for solid state amplifier
US3691427A (en) * 1970-03-29 1972-09-12 Victor Company Of Japan Protective circuit for an all stage direct-coupled transistor output transformerless-output condenserless amplifier
US3731153A (en) * 1970-08-27 1973-05-01 Sansui Electric Co Protective device for loudspeaker
GB1370807A (en) * 1970-11-16 1974-10-16 Pioneer Electronic Corp Signal amplifier provided with a protective circuit
DE2160396B2 (de) * 1970-12-07 1974-08-22 Pioneer Electronic Corp., Tokio Überwachungsschaltung für einen Verstärker
GB1415476A (en) * 1972-07-26 1975-11-26 Beltek Corp Audio instruments protective circuit
JPS5327821B2 (zh) 1972-07-27 1978-08-10
JPS576806B2 (zh) * 1973-10-05 1982-02-06

Also Published As

Publication number Publication date
GB1497690A (en) 1978-01-12
US4010402A (en) 1977-03-01
DE2522528C2 (zh) 1987-06-11
FR2272512A1 (zh) 1975-12-19
FR2272512B1 (zh) 1982-03-05
DE2522528A1 (de) 1975-12-04
NL7505985A (nl) 1975-11-25

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