JPS57164604A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS57164604A
JPS57164604A JP5007481A JP5007481A JPS57164604A JP S57164604 A JPS57164604 A JP S57164604A JP 5007481 A JP5007481 A JP 5007481A JP 5007481 A JP5007481 A JP 5007481A JP S57164604 A JPS57164604 A JP S57164604A
Authority
JP
Japan
Prior art keywords
distortion
amplifying circuit
circuit
resistances
detecting
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.)
Pending
Application number
JP5007481A
Other languages
Japanese (ja)
Inventor
Masayuki Iwamatsu
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP5007481A priority Critical patent/JPS57164604A/en
Priority to US06/361,203 priority patent/US4476442A/en
Publication of JPS57164604A publication Critical patent/JPS57164604A/en
Pending legal-status Critical Current

Links

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  • Amplifiers (AREA)

Abstract

PURPOSE: To cancel the distortion efectively, by detecting the distortion generated in an amplifying circuit by a distortion detecting circuit and adding this detection output to an input signal.
CONSTITUTION: A distortion generated in an amplifying circuit 7 consisting of bias power sources 1 and 2, transistors 3 and 4, and their emitter resistances 5 and 6 is detected by a distortion detecting part 13a consisting of emitter resistances 5 and 6 and resistances 15a, 15b, 16, and 18 and a distortion detecting part 13b consisting of a differential amplifier 17. This detection output and an input signal are added by an adding circuit 14 inserted between the input terminal of the amplifying circuit 7 and an input terminal 9 to which a signal to be amplified is applied, thus cancelling the distortion.
COPYRIGHT: (C)1982,JPO&Japio
JP5007481A 1981-04-03 1981-04-03 Amplifier Pending JPS57164604A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5007481A JPS57164604A (en) 1981-04-03 1981-04-03 Amplifier
US06/361,203 US4476442A (en) 1981-04-03 1982-03-24 Amplifier with distortion cancellation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5007481A JPS57164604A (en) 1981-04-03 1981-04-03 Amplifier

Publications (1)

Publication Number Publication Date
JPS57164604A true JPS57164604A (en) 1982-10-09

Family

ID=12848849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5007481A Pending JPS57164604A (en) 1981-04-03 1981-04-03 Amplifier

Country Status (1)

Country Link
JP (1) JPS57164604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141016A1 (en) * 1991-06-17 1992-12-24 Pioneer Electronic Corp REINFORCEMENT DEVICE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871551A (en) * 1971-12-25 1973-09-27
JPS5237750A (en) * 1975-09-16 1977-03-23 Nippon Telegr & Teleph Corp <Ntt> Disturbance eliminating control system
JPS53140955A (en) * 1977-05-16 1978-12-08 Shin Nakagawa Low distortion amplifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871551A (en) * 1971-12-25 1973-09-27
JPS5237750A (en) * 1975-09-16 1977-03-23 Nippon Telegr & Teleph Corp <Ntt> Disturbance eliminating control system
JPS53140955A (en) * 1977-05-16 1978-12-08 Shin Nakagawa Low distortion amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141016A1 (en) * 1991-06-17 1992-12-24 Pioneer Electronic Corp REINFORCEMENT DEVICE

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