GB845092A - Improvements in or relating to signal amplifier circuits employing transistors - Google Patents

Improvements in or relating to signal amplifier circuits employing transistors

Info

Publication number
GB845092A
GB845092A GB1407059A GB1407059A GB845092A GB 845092 A GB845092 A GB 845092A GB 1407059 A GB1407059 A GB 1407059A GB 1407059 A GB1407059 A GB 1407059A GB 845092 A GB845092 A GB 845092A
Authority
GB
United Kingdom
Prior art keywords
collector
relating
signal amplifier
transistor
amplifier circuits
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
GB1407059A
Inventor
Peter Leonard Mothersole
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB1407059A priority Critical patent/GB845092A/en
Publication of GB845092A publication Critical patent/GB845092A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/02—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general by means of diodes

Landscapes

  • Amplifiers (AREA)

Abstract

845,092. Transistor amplifying circuits. MULLARD Ltd. April 24, 1959, No. 14070/59. Class 40(6). In a transistor amplifier in which the load in the emitter-collector circuit is inductive in nature, e.g. a loudspeaker fed via a transformer TFI, overload due to the transistor being driven beyond cut-off is prevented by negative feedback between collector and base over as non-linear resistor Z. The non-linear resistor may comprise a Zener diode which only comes into operation when the collector-to-base voltage rises beyond a safe value.
GB1407059A 1959-04-24 1959-04-24 Improvements in or relating to signal amplifier circuits employing transistors Expired GB845092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1407059A GB845092A (en) 1959-04-24 1959-04-24 Improvements in or relating to signal amplifier circuits employing transistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1407059A GB845092A (en) 1959-04-24 1959-04-24 Improvements in or relating to signal amplifier circuits employing transistors

Publications (1)

Publication Number Publication Date
GB845092A true GB845092A (en) 1960-08-17

Family

ID=10034437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1407059A Expired GB845092A (en) 1959-04-24 1959-04-24 Improvements in or relating to signal amplifier circuits employing transistors

Country Status (1)

Country Link
GB (1) GB845092A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160506B (en) * 1960-09-02 1964-01-02 Licentia Gmbh Circuit arrangement for limiting overvoltages on a transistor
US3200346A (en) * 1962-08-21 1965-08-10 Adage Inc Overload protection circuit for high impedance amplifiers
US3377426A (en) * 1964-07-16 1968-04-09 Rca Corp Amplitude limiting signal translating circuit utilizing a voltage dependent resistor in the output circuit
US3462656A (en) * 1966-06-28 1969-08-19 Telefunken Patent Semiconductor device with an emitter,base and collector region

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160506B (en) * 1960-09-02 1964-01-02 Licentia Gmbh Circuit arrangement for limiting overvoltages on a transistor
US3200346A (en) * 1962-08-21 1965-08-10 Adage Inc Overload protection circuit for high impedance amplifiers
US3377426A (en) * 1964-07-16 1968-04-09 Rca Corp Amplitude limiting signal translating circuit utilizing a voltage dependent resistor in the output circuit
US3462656A (en) * 1966-06-28 1969-08-19 Telefunken Patent Semiconductor device with an emitter,base and collector region
DE1564863A1 (en) * 1966-06-28 1969-12-04 Telefunken Patent Semiconductor component with an emitter, base and collector zone

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