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JPS5518110A - A-class push-pull amplifier - Google Patents

A-class push-pull amplifier

Info

Publication number
JPS5518110A
JPS5518110A JP9029678A JP9029678A JPS5518110A JP S5518110 A JPS5518110 A JP S5518110A JP 9029678 A JP9029678 A JP 9029678A JP 9029678 A JP9029678 A JP 9029678A JP S5518110 A JPS5518110 A JP S5518110A
Authority
JP
Japan
Prior art keywords
output
pull amplifier
transistors
push
transistor
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
JP9029678A
Other languages
Japanese (ja)
Inventor
Hikari Kondo
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP9029678A priority Critical patent/JPS5518110A/en
Priority to US06/058,181 priority patent/US4306199A/en
Priority to AU49098/79A priority patent/AU529417B2/en
Priority to DE2929683A priority patent/DE2929683C2/en
Priority to GB7925706A priority patent/GB2031238B/en
Publication of JPS5518110A publication Critical patent/JPS5518110A/en
Priority to SG272/83A priority patent/SG27283G/en
Priority to HK455/83A priority patent/HK45583A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To realize an A-class push-pull amplifier which features a high efficiency and low distortion rate by varying the bias voltage of the output-step transistor in accordance with the output. CONSTITUTION:The difference of the input potential and the output potential is detected by operational amplifier A1 between output-step transistors Tr7 and Tr8 and then applied to the base of transistor Tr2 forming the bias voltage circuits of Tr7 and Tr8. No cut-off state is given to Tr2 since the emitter is connected to the constant current source, and at the same time Tr2 is so set as not to be saturated completely by diode D1. Thus transistors Tr7 and Tr8 always operate only at the driving region. So is for output-step transistors Tr9 and Tr10 of the other side which constitute a push-pull amplifier.
JP9029678A 1978-07-24 1978-07-24 A-class push-pull amplifier Pending JPS5518110A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP9029678A JPS5518110A (en) 1978-07-24 1978-07-24 A-class push-pull amplifier
US06/058,181 US4306199A (en) 1978-07-24 1979-07-17 Push-pull amplifier
AU49098/79A AU529417B2 (en) 1978-07-24 1979-07-20 Push pull amplifier
DE2929683A DE2929683C2 (en) 1978-07-24 1979-07-21 Push-pull amplifier
GB7925706A GB2031238B (en) 1978-07-24 1979-07-24 Pushpull amplifier
SG272/83A SG27283G (en) 1978-07-24 1983-05-20 Push-pull amplifier
HK455/83A HK45583A (en) 1978-07-24 1983-10-20 Push-pull amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9029678A JPS5518110A (en) 1978-07-24 1978-07-24 A-class push-pull amplifier

Publications (1)

Publication Number Publication Date
JPS5518110A true JPS5518110A (en) 1980-02-08

Family

ID=13994564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9029678A Pending JPS5518110A (en) 1978-07-24 1978-07-24 A-class push-pull amplifier

Country Status (1)

Country Link
JP (1) JPS5518110A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990410A (en) * 1982-11-15 1984-05-24 Sanyo Electric Co Ltd Power amplifier circuit
JPS60127020U (en) * 1984-02-02 1985-08-27 株式会社ケンウッド amplifier
JPS6326423A (en) * 1986-07-05 1988-02-04 ル−ク・ラメレン・ウント・クツプルングスバウ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Vibration shock absorber
JP2013521689A (en) * 2010-03-02 2013-06-10 ドゥビアル Class A push-pull amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990410A (en) * 1982-11-15 1984-05-24 Sanyo Electric Co Ltd Power amplifier circuit
JPS60127020U (en) * 1984-02-02 1985-08-27 株式会社ケンウッド amplifier
JPS6326423A (en) * 1986-07-05 1988-02-04 ル−ク・ラメレン・ウント・クツプルングスバウ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Vibration shock absorber
JP2013521689A (en) * 2010-03-02 2013-06-10 ドゥビアル Class A push-pull amplifier

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

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R250 Receipt of annual fees

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LAPS Cancellation because of no payment of annual fees