GB1486512A - Device for protecting an audio amplifier against overload and/or short circuit - Google Patents

Device for protecting an audio amplifier against overload and/or short circuit

Info

Publication number
GB1486512A
GB1486512A GB221075A GB221075A GB1486512A GB 1486512 A GB1486512 A GB 1486512A GB 221075 A GB221075 A GB 221075A GB 221075 A GB221075 A GB 221075A GB 1486512 A GB1486512 A GB 1486512A
Authority
GB
United Kingdom
Prior art keywords
amplifier
transistors
output
transistor
resistor
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
GB221075A
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.)
Novanex Automation NV
Original Assignee
Novanex Automation NV
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 Novanex Automation NV filed Critical Novanex Automation NV
Publication of GB1486512A publication Critical patent/GB1486512A/en
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
    • 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
    • H03F3/3083—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type
    • H03F3/3086—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal
    • H03F3/3091—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal comprising two complementary transistors for phase-splitting

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB221075A 1974-01-24 1975-01-17 Device for protecting an audio amplifier against overload and/or short circuit Expired GB1486512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7400977A NL160684C (nl) 1974-01-24 1974-01-24 Inrichting voor het tegen overbelasting of kortsluiting be- schermen van een audioversterker.

Publications (1)

Publication Number Publication Date
GB1486512A true GB1486512A (en) 1977-09-21

Family

ID=19820607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB221075A Expired GB1486512A (en) 1974-01-24 1975-01-17 Device for protecting an audio amplifier against overload and/or short circuit

Country Status (5)

Country Link
DE (1) DE2501927A1 (enrdf_load_stackoverflow)
FR (1) FR2259465A1 (enrdf_load_stackoverflow)
GB (1) GB1486512A (enrdf_load_stackoverflow)
IT (1) IT1031158B (enrdf_load_stackoverflow)
NL (1) NL160684C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515853A1 (en) * 1991-05-13 1992-12-02 Thomson Consumer Electronics, Inc. Protection arrangement for an audio output channel
CN104617897A (zh) * 2015-03-03 2015-05-13 深圳市芯电威科技有限公司 一种音频功率放大器电路

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL188255C (nl) * 1978-11-24 1992-05-06 Novanex Automation Nv Inrichting voor het tegen overbelasting of kortsluiting beschermen van een audioversterker.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515853A1 (en) * 1991-05-13 1992-12-02 Thomson Consumer Electronics, Inc. Protection arrangement for an audio output channel
US5224169A (en) * 1991-05-13 1993-06-29 Thomson Consumer Electronics, Inc. Protection arrangement for an audio output channel
TR26900A (tr) * 1991-05-13 1994-08-22 Thomson Consumer Electronics Televizyon alici cihazinin ses cikis kanali icin koruyucu düzenek.
CN104617897A (zh) * 2015-03-03 2015-05-13 深圳市芯电威科技有限公司 一种音频功率放大器电路
CN104617897B (zh) * 2015-03-03 2018-08-28 广东芯威电声技术有限公司 一种音频功率放大器电路

Also Published As

Publication number Publication date
DE2501927A1 (de) 1975-07-31
NL160684C (nl) 1979-11-15
FR2259465A1 (enrdf_load_stackoverflow) 1975-08-22
IT1031158B (it) 1979-04-30
NL7400977A (nl) 1975-07-28
NL160684B (nl) 1979-06-15

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Legal Events

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