JPS5468142A - Btl amplifying circuit - Google Patents

Btl amplifying circuit

Info

Publication number
JPS5468142A
JPS5468142A JP13465277A JP13465277A JPS5468142A JP S5468142 A JPS5468142 A JP S5468142A JP 13465277 A JP13465277 A JP 13465277A JP 13465277 A JP13465277 A JP 13465277A JP S5468142 A JPS5468142 A JP S5468142A
Authority
JP
Japan
Prior art keywords
amplifying circuit
signal
phase
output
distortion
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
JP13465277A
Other languages
Japanese (ja)
Inventor
Kunio Seki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13465277A priority Critical patent/JPS5468142A/en
Publication of JPS5468142A publication Critical patent/JPS5468142A/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
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor

Landscapes

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

Abstract

PURPOSE:To prevent the effect on the output due to external disturbance and to reduce the distortion factor of the amplifying circuit, by feeding the signals of opposite phase each other of the differential amplifying circuit to two positive or inverting phase amplifying circuits. CONSTITUTION:The signal of opposite phase is fed to the input signal IN formed with the differential amplifying circuit 3 to the input of the positive phase amplifiers 1 and 2, the output is inverted phase signal each other, and BTL (Balanced Transformer Less) circuit is constituted. Accordingly, since the output signal operates so that the component of distortion is cancelled each other, the distortion factor can be decreased. Further, since the BTL amplifying circuit outputs the difference voltage between the circuits 1 and 2, the effect on the output signal due to external disturbance such as power input variation (including ripple) is indicated as the in- phase signal, then the output signal does not contain by cancellation and the output distortion can be reduced.
JP13465277A 1977-11-11 1977-11-11 Btl amplifying circuit Pending JPS5468142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13465277A JPS5468142A (en) 1977-11-11 1977-11-11 Btl amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13465277A JPS5468142A (en) 1977-11-11 1977-11-11 Btl amplifying circuit

Publications (1)

Publication Number Publication Date
JPS5468142A true JPS5468142A (en) 1979-06-01

Family

ID=15133370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13465277A Pending JPS5468142A (en) 1977-11-11 1977-11-11 Btl amplifying circuit

Country Status (1)

Country Link
JP (1) JPS5468142A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757621U (en) * 1980-09-19 1982-04-05
JPS57208711A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Power amplifier having one set inverted output
US4885550A (en) * 1988-12-01 1989-12-05 Motorola, Inc. Signal input to differential output amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757621U (en) * 1980-09-19 1982-04-05
JPS57208711A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Power amplifier having one set inverted output
US4885550A (en) * 1988-12-01 1989-12-05 Motorola, Inc. Signal input to differential output amplifier
WO1990006626A1 (en) * 1988-12-01 1990-06-14 Motorola, Inc. Single input to differential output amplifier

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