JPS4932140A - - Google Patents

Info

Publication number
JPS4932140A
JPS4932140A JP47075414A JP7541472A JPS4932140A JP S4932140 A JPS4932140 A JP S4932140A JP 47075414 A JP47075414 A JP 47075414A JP 7541472 A JP7541472 A JP 7541472A JP S4932140 A JPS4932140 A JP S4932140A
Authority
JP
Japan
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
JP47075414A
Other languages
Japanese (ja)
Other versions
JPS5327821B2 (en]
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 filed Critical
Priority to JP7541472A priority Critical patent/JPS5327821B2/ja
Priority to GB3514373A priority patent/GB1439241A/en
Priority to US382139A priority patent/US3904979A/en
Priority to CA177,382A priority patent/CA1013440A/en
Priority to DE2338057A priority patent/DE2338057B2/de
Priority to FR7327702A priority patent/FR2195099B1/fr
Priority to NLAANVRAGE7310480,A priority patent/NL177871C/xx
Priority to IT27216/73A priority patent/IT992739B/it
Publication of JPS4932140A publication Critical patent/JPS4932140A/ja
Priority to US05/562,346 priority patent/US3992678A/en
Priority to CA272,289A priority patent/CA1015833A/en
Publication of JPS5327821B2 publication Critical patent/JPS5327821B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output
    • H03F3/3071—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with asymmetrical driving of the end stage
    • H03F3/3072—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with asymmetrical driving of the end stage using Darlington transistors
    • 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
    • H02H3/40—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 ratio of voltage and current
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Protection Of Static Devices (AREA)
JP7541472A 1972-07-27 1972-07-27 Expired JPS5327821B2 (en])

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP7541472A JPS5327821B2 (en]) 1972-07-27 1972-07-27
GB3514373A GB1439241A (en) 1972-07-27 1973-07-24 Transistor amplifiers including a protective circuit
US382139A US3904979A (en) 1972-07-27 1973-07-24 Protective circuit for transistor amplifier
CA177,382A CA1013440A (en) 1972-07-27 1973-07-26 Protective circuit for transistor amplifier
DE2338057A DE2338057B2 (de) 1972-07-27 1973-07-26 Schutzschaltung für Transistorverstärker
FR7327702A FR2195099B1 (en]) 1972-07-27 1973-07-27
NLAANVRAGE7310480,A NL177871C (nl) 1972-07-27 1973-07-27 Beveiligingsschakeling voor een transistoreindtrap.
IT27216/73A IT992739B (it) 1972-07-27 1973-07-27 Circuito di protezione per amplificatore a transistori
US05/562,346 US3992678A (en) 1972-07-27 1975-03-26 Protective circuit for transistor amplifier
CA272,289A CA1015833A (en) 1972-07-27 1977-02-22 Protective circuit for transistor amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7541472A JPS5327821B2 (en]) 1972-07-27 1972-07-27

Publications (2)

Publication Number Publication Date
JPS4932140A true JPS4932140A (en]) 1974-03-23
JPS5327821B2 JPS5327821B2 (en]) 1978-08-10

Family

ID=13575478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7541472A Expired JPS5327821B2 (en]) 1972-07-27 1972-07-27

Country Status (8)

Country Link
US (1) US3904979A (en])
JP (1) JPS5327821B2 (en])
CA (1) CA1013440A (en])
DE (1) DE2338057B2 (en])
FR (1) FR2195099B1 (en])
GB (1) GB1439241A (en])
IT (1) IT992739B (en])
NL (1) NL177871C (en])

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108333U (en]) * 1974-02-12 1975-09-04
DE2522528A1 (de) 1974-05-21 1975-12-04 Sony Corp Schutzschaltung
JPS54123859A (en) * 1978-03-17 1979-09-26 Hitachi Ltd Protection circuit for output transistor
JPS55148210U (en]) * 1979-04-11 1980-10-24
JPS55148209U (en]) * 1979-04-11 1980-10-24
JPS567920U (en]) * 1979-06-28 1981-01-23
JPS5973724U (ja) * 1982-11-10 1984-05-18 日東光学株式会社 シヤツタ−羽根の振動防止装置
JPS6068523U (ja) * 1983-10-18 1985-05-15 キヤノン株式会社 シヤツターのブレーキ装置
JPS6088622U (ja) * 1983-11-22 1985-06-18 フオスタ−電機株式会社 負荷インピ−ダンス検出回路
JPS62143450A (ja) * 1985-12-18 1987-06-26 Hitachi Ltd 複合半導体装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992678A (en) * 1972-07-27 1976-11-16 Sony Corporation Protective circuit for transistor amplifier
JPS5168758A (en) * 1974-12-11 1976-06-14 Sony Corp Zofukukairono hogokairo
US4069428A (en) * 1976-09-02 1978-01-17 International Business Machines Corporation Transistor-transistor-logic circuit
US4216437A (en) * 1977-10-14 1980-08-05 Trio Kabushiki Kaisha Protective circuitry for push-pull amplifiers
US4330686A (en) * 1978-12-21 1982-05-18 Stephen Roe Loudspeaker systems
FR2468253A1 (fr) * 1979-10-22 1981-04-30 Radiotechnique Compelec Amplificateur de type darlington protege contre les surcharges de courant et sa realisation en structure semiconductrice integree
US4355341A (en) * 1980-06-30 1982-10-19 Rca Corporation Power protection circuit for transistors
JPS57124909A (en) * 1981-01-27 1982-08-04 Toshiba Corp Output transistor protection circuit
DE3216833A1 (de) * 1982-05-05 1983-11-10 Siemens AG, 1000 Berlin und 8000 München Schutzschaltung fuer einen schalttransistor
US4509101A (en) * 1982-08-24 1985-04-02 Nippon Gakki Seizo Kabushiki Kaisha Protection circuit for switching power amplifier
JPH01172034A (ja) * 1987-12-28 1989-07-06 Aisin Aw Co Ltd 電子制御装置におけるランプ出力保護回路
KR100690772B1 (ko) * 2005-03-23 2007-03-09 엘지전자 주식회사 휴대단말기의 전력증폭기 전원부 보호장치 및 방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364391A (en) * 1964-07-03 1968-01-16 Litton Business Systems Inc Regenerative drive circuit with current limiting
US3536958A (en) * 1967-12-05 1970-10-27 Rca Corp Amplifier protection circuit
JPS5027344B1 (en]) * 1970-03-26 1975-09-06

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108333U (en]) * 1974-02-12 1975-09-04
DE2522528A1 (de) 1974-05-21 1975-12-04 Sony Corp Schutzschaltung
JPS54123859A (en) * 1978-03-17 1979-09-26 Hitachi Ltd Protection circuit for output transistor
JPS55148210U (en]) * 1979-04-11 1980-10-24
JPS55148209U (en]) * 1979-04-11 1980-10-24
JPS567920U (en]) * 1979-06-28 1981-01-23
JPS5973724U (ja) * 1982-11-10 1984-05-18 日東光学株式会社 シヤツタ−羽根の振動防止装置
JPS6068523U (ja) * 1983-10-18 1985-05-15 キヤノン株式会社 シヤツターのブレーキ装置
JPS6088622U (ja) * 1983-11-22 1985-06-18 フオスタ−電機株式会社 負荷インピ−ダンス検出回路
JPS62143450A (ja) * 1985-12-18 1987-06-26 Hitachi Ltd 複合半導体装置

Also Published As

Publication number Publication date
US3904979A (en) 1975-09-09
NL7310480A (en]) 1974-01-29
DE2338057A1 (de) 1974-02-14
FR2195099A1 (en]) 1974-03-01
DE2338057B2 (de) 1981-01-15
CA1013440A (en) 1977-07-05
FR2195099B1 (en]) 1978-08-11
NL177871C (nl) 1985-12-02
IT992739B (it) 1975-09-30
JPS5327821B2 (en]) 1978-08-10
GB1439241A (en) 1976-06-16

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