JPS5566110A - Amplifier circuit - Google Patents

Amplifier circuit

Info

Publication number
JPS5566110A
JPS5566110A JP13962078A JP13962078A JPS5566110A JP S5566110 A JPS5566110 A JP S5566110A JP 13962078 A JP13962078 A JP 13962078A JP 13962078 A JP13962078 A JP 13962078A JP S5566110 A JPS5566110 A JP S5566110A
Authority
JP
Japan
Prior art keywords
resistance
voltage
amplifier
amplifiers
gain
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
JP13962078A
Other languages
Japanese (ja)
Other versions
JPS6228606B2 (en
Inventor
Hisatsugu Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13962078A priority Critical patent/JPS5566110A/en
Publication of JPS5566110A publication Critical patent/JPS5566110A/en
Publication of JPS6228606B2 publication Critical patent/JPS6228606B2/ja
Granted 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
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

Landscapes

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

Abstract

PURPOSE:To realize a circuit constitution in that the circuit breakage can be avoided to increase the safe increase of the output current although the voltage gain is set optionally, by adding the amplifier of gain 1 puls the resistance to the ordinary amplifier. CONSTITUTION:The value of resistances 5 and 6 are defined as R1 and R2 each, and the voltage applied to load resistance 4 is E0 along with current flowing to resistances 5 and 6 defined as I1 and I2 respectively. Thus the volage at input terminal 700 of amplifier 7 becomes as E0+I1R1. As the gain of amplifier 7 is 1, the voltage at output terminal 701 also features E0+I1R1. Accordingly, the voltage across resistance 6 becomes as E0+I1R1-E0=I1R1, and the current flowing through resistance 6 is as I2=I1R1/R2. Here if the resistance value is selected to secure R1=R2, I2=I1 is obtained. Thus the equal current flows to load resistance 4 from both amplifiers 2 and 7. If this current is referred to as I0, I0=I1+I2=2I1 is obtained. In this circuit, amplifiers 2 and 7 are not connected in parallel directly, and as a result no current flows between amplifiers 2 and 7 due to the difference of the offset voltage.
JP13962078A 1978-11-10 1978-11-10 Amplifier circuit Granted JPS5566110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13962078A JPS5566110A (en) 1978-11-10 1978-11-10 Amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13962078A JPS5566110A (en) 1978-11-10 1978-11-10 Amplifier circuit

Publications (2)

Publication Number Publication Date
JPS5566110A true JPS5566110A (en) 1980-05-19
JPS6228606B2 JPS6228606B2 (en) 1987-06-22

Family

ID=15249521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13962078A Granted JPS5566110A (en) 1978-11-10 1978-11-10 Amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5566110A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367442A (en) * 1980-07-10 1983-01-04 Sansui Electric Co., Ltd. Distortion correction circuit for a power amplifier
US4739280A (en) * 1986-05-21 1988-04-19 Nippon Gakki Seizo Kabushiki Kaisha Amplifier circuit having reduced crossover distortion
US5086474A (en) * 1990-03-28 1992-02-04 Thomson Consumer Electronics, Inc. Amplifier having maximum summed power output from a plurality of devices having limited current sinking capability
JP2010258902A (en) * 2009-04-27 2010-11-11 Renesas Electronics Corp Output circuit using analog amplifier circuit
JP2012518971A (en) * 2009-02-25 2012-08-16 ティ エイチ エックス リミテッド Low loss amplifier
JP2014212485A (en) * 2013-04-19 2014-11-13 株式会社エヌエフ回路設計ブロック Amplifier circuit
WO2026059883A1 (en) * 2024-09-13 2026-03-19 Shure Acquisition Holdings, Inc. Impedance detection and current adjustment for audio devices

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367442A (en) * 1980-07-10 1983-01-04 Sansui Electric Co., Ltd. Distortion correction circuit for a power amplifier
US4739280A (en) * 1986-05-21 1988-04-19 Nippon Gakki Seizo Kabushiki Kaisha Amplifier circuit having reduced crossover distortion
US5086474A (en) * 1990-03-28 1992-02-04 Thomson Consumer Electronics, Inc. Amplifier having maximum summed power output from a plurality of devices having limited current sinking capability
JPH04227383A (en) * 1990-03-28 1992-08-17 Thomson Consumer Electron Inc Television receiver
TR25661A (en) * 1990-03-28 1993-07-01 Thomson Cons Electr Inc OBTAINING THE MAXIMUM COLLECTED POWER OUTPUT FROM MULTIPLE DEVICES THAT ARE USING THE CURRENT.
JP2012518971A (en) * 2009-02-25 2012-08-16 ティ エイチ エックス リミテッド Low loss amplifier
JP2010258902A (en) * 2009-04-27 2010-11-11 Renesas Electronics Corp Output circuit using analog amplifier circuit
JP2014212485A (en) * 2013-04-19 2014-11-13 株式会社エヌエフ回路設計ブロック Amplifier circuit
WO2026059883A1 (en) * 2024-09-13 2026-03-19 Shure Acquisition Holdings, Inc. Impedance detection and current adjustment for audio devices

Also Published As

Publication number Publication date
JPS6228606B2 (en) 1987-06-22

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