JPS5518118A - Transistor power amplifier circuit - Google Patents

Transistor power amplifier circuit

Info

Publication number
JPS5518118A
JPS5518118A JP9047178A JP9047178A JPS5518118A JP S5518118 A JPS5518118 A JP S5518118A JP 9047178 A JP9047178 A JP 9047178A JP 9047178 A JP9047178 A JP 9047178A JP S5518118 A JPS5518118 A JP S5518118A
Authority
JP
Japan
Prior art keywords
transistor
output
circuit
detection output
turned
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
JP9047178A
Other languages
English (en)
Japanese (ja)
Other versions
JPS627722B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Kunio Seki
Ritsuji Takeshita
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9047178A priority Critical patent/JPS5518118A/ja
Priority to US06/052,207 priority patent/US4503478A/en
Priority to DE19792930017 priority patent/DE2930017A1/de
Priority to GB7925891A priority patent/GB2027307B/en
Priority to IT24664/79A priority patent/IT1122345B/it
Publication of JPS5518118A publication Critical patent/JPS5518118A/ja
Priority to SG413/84A priority patent/SG41384G/en
Priority to HK352/85A priority patent/HK35285A/xx
Priority to MY659/85A priority patent/MY8500659A/xx
Publication of JPS627722B2 publication Critical patent/JPS627722B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP9047178A 1978-07-26 1978-07-26 Transistor power amplifier circuit Granted JPS5518118A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP9047178A JPS5518118A (en) 1978-07-26 1978-07-26 Transistor power amplifier circuit
US06/052,207 US4503478A (en) 1978-07-26 1979-06-26 Transistor power amplifier circuit
DE19792930017 DE2930017A1 (de) 1978-07-26 1979-07-24 Transistorleistungsverstaerkerschaltung
GB7925891A GB2027307B (en) 1978-07-26 1979-07-25 Transistor power amplifier protection circuit
IT24664/79A IT1122345B (it) 1978-07-26 1979-07-25 Circuito amplificatore di potenza a transistor
SG413/84A SG41384G (en) 1978-07-26 1984-06-04 Transistor power amplifier circuit
HK352/85A HK35285A (en) 1978-07-26 1985-05-09 Transistor power amplifier circuit
MY659/85A MY8500659A (en) 1978-07-26 1985-12-30 Transistor power amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9047178A JPS5518118A (en) 1978-07-26 1978-07-26 Transistor power amplifier circuit

Publications (2)

Publication Number Publication Date
JPS5518118A true JPS5518118A (en) 1980-02-08
JPS627722B2 JPS627722B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-02-19

Family

ID=13999499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9047178A Granted JPS5518118A (en) 1978-07-26 1978-07-26 Transistor power amplifier circuit

Country Status (8)

Country Link
US (1) US4503478A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5518118A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2930017A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2027307B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HK (1) HK35285A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1122345B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MY (1) MY8500659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SG (1) SG41384G (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230410U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1985-08-08 1987-02-24
JPH0191506A (ja) * 1988-08-05 1989-04-11 Hitachi Ltd 低周波電力増幅回路
US5072806A (en) * 1988-11-25 1991-12-17 Mitsubishi Pencil Co., Ltd. Diaphragm for acoustic equipment
JP2011004040A (ja) * 2009-06-17 2011-01-06 Nippon Telegr & Teleph Corp <Ntt> 高周波電力増幅回路およびその設計方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753110A (en) * 1980-09-16 1982-03-30 Toshiba Corp Power amplifier
GB2119102B (en) * 1982-04-01 1985-09-04 Victor Company Of Japan Load impedance detector for audio power amplifiers
US4481553A (en) * 1982-04-05 1984-11-06 General Electric Company Protection circuit
IT1214614B (it) * 1985-06-12 1990-01-18 Ates Componenti Elettron Dispositivo di protezione contro i cortocircuiti dello stadio finale di un amplificatore di potenza.
JPH0630543B2 (ja) * 1987-01-13 1994-04-20 株式会社東芝 出力回路の異常検出報知回路
JP3125821B2 (ja) * 1992-05-08 2001-01-22 ソニー株式会社 電源供給回路
US5383083A (en) * 1992-05-19 1995-01-17 Pioneer Electronic Corporation Protective apparatus for power transistor
FR2741212B1 (fr) * 1995-11-14 1998-01-30 Sgs Thomson Microelectronics Dispositif de limitation du courant de sortie d'un amplificateur operationnel

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441864A (en) * 1966-02-07 1969-04-29 Tld Inc Transistor amplifier protective circuits
US3536958A (en) * 1967-12-05 1970-10-27 Rca Corp Amplifier protection circuit
GB1238950A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1968-09-27 1971-07-14
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
JPS4968642A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-11-06 1974-07-03
US3835412A (en) * 1972-11-06 1974-09-10 Victor Company Of Japan Transistor amplifier protective circuit
JPS576806B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-10-05 1982-02-06
US4053996A (en) * 1976-03-24 1977-10-18 General Motors Corporation Power amplifier protection circuit
US4146847A (en) * 1976-11-05 1979-03-27 Trio Kabushiki Kaisha Power limiting circuitry for use with power amplifier
JPS5425145A (en) * 1977-07-28 1979-02-24 Sony Corp Detection circuit for unbalanced dc voltage of output amplifier on two-power- supply system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230410U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1985-08-08 1987-02-24
JPH0191506A (ja) * 1988-08-05 1989-04-11 Hitachi Ltd 低周波電力増幅回路
US5072806A (en) * 1988-11-25 1991-12-17 Mitsubishi Pencil Co., Ltd. Diaphragm for acoustic equipment
JP2011004040A (ja) * 2009-06-17 2011-01-06 Nippon Telegr & Teleph Corp <Ntt> 高周波電力増幅回路およびその設計方法

Also Published As

Publication number Publication date
US4503478A (en) 1985-03-05
SG41384G (en) 1985-03-08
GB2027307B (en) 1982-11-10
IT7924664A0 (it) 1979-07-25
HK35285A (en) 1985-05-17
IT1122345B (it) 1986-04-23
DE2930017A1 (de) 1980-03-13
MY8500659A (en) 1985-12-31
JPS627722B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-02-19
GB2027307A (en) 1980-02-13

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