JPS5478956A - Amplified output circuit - Google Patents

Amplified output circuit

Info

Publication number
JPS5478956A
JPS5478956A JP14605077A JP14605077A JPS5478956A JP S5478956 A JPS5478956 A JP S5478956A JP 14605077 A JP14605077 A JP 14605077A JP 14605077 A JP14605077 A JP 14605077A JP S5478956 A JPS5478956 A JP S5478956A
Authority
JP
Japan
Prior art keywords
output
amplifying circuit
taking
input
terminal
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
JP14605077A
Other languages
Japanese (ja)
Other versions
JPS6058602B2 (en
Inventor
Kunio Seki
Ritsuji Takeshita
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 JP52146050A priority Critical patent/JPS6058602B2/en
Publication of JPS5478956A publication Critical patent/JPS5478956A/en
Publication of JPS6058602B2 publication Critical patent/JPS6058602B2/en
Expired 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

Abstract

PURPOSE:To establish the monolythic integrated circuit of low distortion factor taking minimum of the increase of the external terminals, by operating the first amplifying circuit taking one output of the differential amplifying circuit as input and the second amplifying circuit taking another output as input with in-phase. CONSTITUTION:The monolythic integrated circuit 1 is constituted by connecting the base of the input pair transistors TrQ1 and Q2 of the differential amplifier 2 to the external terminals P1 and P2, the common emitter to the terminal P3, and the output of the positive phase amplifiers 3 and 4 taking the differential output of the amplifier 2 as inputs to the terminals P4 and P5 respectively. Input signal is fed to the terminal P1, a given bias voltage is fed to the terminal P2, the input circuit is operated as the differential amplifying circuit by opening the terminal P3, and the load is connected to the output terminals P4 and P5, enabling to constitute the BTL amplifying circuit. The even order harmonics of the amplifying circuits 3 and 4 is appeared as the in-phase signal, and at the BTL amplifying circuit taking the output difference voltage of the circuits 3 and 4 cancells the even order harmonics and reduces the distortion factor greatly.
JP52146050A 1977-12-07 1977-12-07 Amplified output circuit Expired JPS6058602B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52146050A JPS6058602B2 (en) 1977-12-07 1977-12-07 Amplified output circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52146050A JPS6058602B2 (en) 1977-12-07 1977-12-07 Amplified output circuit

Publications (2)

Publication Number Publication Date
JPS5478956A true JPS5478956A (en) 1979-06-23
JPS6058602B2 JPS6058602B2 (en) 1985-12-20

Family

ID=15398954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52146050A Expired JPS6058602B2 (en) 1977-12-07 1977-12-07 Amplified output circuit

Country Status (1)

Country Link
JP (1) JPS6058602B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS568911A (en) * 1979-07-05 1981-01-29 Toko Inc Btl amplifier
JPS5877310A (en) * 1981-11-02 1983-05-10 Pioneer Electronic Corp Balanced transformerless amplifier
JPS58126192U (en) * 1982-02-18 1983-08-27 大日機工株式会社 industrial robot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS568911A (en) * 1979-07-05 1981-01-29 Toko Inc Btl amplifier
JPS5877310A (en) * 1981-11-02 1983-05-10 Pioneer Electronic Corp Balanced transformerless amplifier
JPH0440886B2 (en) * 1981-11-02 1992-07-06 Pioneer Electronic Corp
JPS58126192U (en) * 1982-02-18 1983-08-27 大日機工株式会社 industrial robot

Also Published As

Publication number Publication date
JPS6058602B2 (en) 1985-12-20

Similar Documents

Publication Publication Date Title
US3444476A (en) Direct coupled amplifier with feedback for d.c. error correction
GB1479008A (en) Amplifier circuit
GB714811A (en) Electric signal translating devices employing transistors
US4748420A (en) Quadcomp amplifier
GB1493472A (en) Composite transistor circuit
US3304513A (en) Differential direct-current amplifier
KR100284965B1 (en) Differential amplifier
GB1286602A (en) Improvements in or relating to differential amplifiers
JPS6472605A (en) Feedback amplifier
GB700243A (en) Electric signal translating circuits employing transistors
ES418979A1 (en) Switching circuit
ES429228A1 (en) Feedback amplifier
GB755367A (en) Improvements in or relating to negative-feed-back transistor amplifiers
JPS5478956A (en) Amplified output circuit
ES8200801A1 (en) Variable-gain differential amplifier
KR900002089B1 (en) Amplifier circuit
GB1453620A (en) Transistor amplifier
JPS5634213A (en) Signal muting circuit in bridge amplifier
GB1535823A (en) Amplifier circuit
GB1080459A (en) Differential amplifiers
US3379986A (en) Direct coupled transistorized class "b" power amplifier
JPS5547714A (en) Variable gain amplifying circuit
GB1289705A (en)
JPS55115708A (en) Push pull amplifier
SU1539962A1 (en) Operational amplifier