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GB1360292A - Differential amplifier circuit - Google Patents

Differential amplifier circuit

Info

Publication number
GB1360292A
GB1360292A GB4442272A GB4442272A GB1360292A GB 1360292 A GB1360292 A GB 1360292A GB 4442272 A GB4442272 A GB 4442272A GB 4442272 A GB4442272 A GB 4442272A GB 1360292 A GB1360292 A GB 1360292A
Authority
GB
United Kingdom
Prior art keywords
transistor
transistors
base
differential amplifier
capacitor
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.)
Expired
Application number
GB4442272A
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
Publication of GB1360292A publication Critical patent/GB1360292A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply

Landscapes

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

Abstract

1360292 Transistor amplifying circuits HITACHI Ltd 26 Sept 1972 [27 Sept 1971] 44422/72 Heading H3T In a differential amplifier comprising transistors T1, T2 with the collector to emitter path of a further transistor T3 as common emitter impedance, the base biases on the transistors T1, T2 are derived from a further transistor T7, in emitter follower connection over resistors R4 and R9 and R7. The input is applied to the base of transistor T1, over capacitor C3. An output stage comprising complementary transistors T4, T5 is driven from the collector circuit of transistor T1, negative feedback being applied from the output terminal to the base of transistor T2 by means of resistors R6, R7 and D.C. blocking capacitor C2. Transistor T6 comprising a current generator provides a D.C. path for transistor T5. The arrangement provides for the rapid charging of capacitors C2, C3 and decoupling capacitor C1, and also prevents a "pop" signal being produced, on switching on. Fieldeffect transistors may alternatively be used.
GB4442272A 1971-09-27 1972-09-26 Differential amplifier circuit Expired GB1360292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7468571A JPS5435057B2 (en) 1971-09-27 1971-09-27

Publications (1)

Publication Number Publication Date
GB1360292A true GB1360292A (en) 1974-07-17

Family

ID=13554312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4442272A Expired GB1360292A (en) 1971-09-27 1972-09-26 Differential amplifier circuit

Country Status (5)

Country Link
JP (1) JPS5435057B2 (en)
DE (1) DE2247471A1 (en)
FR (1) FR2155389A5 (en)
GB (1) GB1360292A (en)
NL (1) NL7213031A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2022949A (en) * 1978-05-15 1979-12-19 Tokyo Shibaura Electric Co Bias circuit for a linear amplifier
US6040740A (en) * 1997-04-09 2000-03-21 Lsi Logic Corporation Audio transient suppression device

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364255A1 (en) * 1973-12-22 1975-07-10 Renker Gmbh CHEMICALLY MODIFIED CLAYS AND THE PROCESS FOR THEIR PRODUCTION
JPS50122849A (en) * 1974-03-14 1975-09-26
JPS5810885B2 (en) * 1974-04-19 1983-02-28 日本電気株式会社 Enzanzou Fukuki no Shiyunji Danzoku Cairo
JPS51123038A (en) * 1975-04-18 1976-10-27 Matsushita Electric Ind Co Ltd Impedance conversion circuit
JPS51112153A (en) * 1975-03-27 1976-10-04 Nec Corp Amplifier circuit
JPS51155035U (en) * 1975-06-03 1976-12-10
JPS5235948U (en) * 1975-09-04 1977-03-14
JPS6010445B2 (en) * 1975-09-27 1985-03-18 松下電器産業株式会社 transistor power amplifier
JPS5840847B2 (en) * 1975-11-13 1983-09-08 株式会社日立製作所 Taisuuuzoufukuki
JPS6034284B2 (en) * 1975-11-14 1985-08-08 新白砂電機株式会社 amplifier circuit
JPS6034285B2 (en) * 1975-11-14 1985-08-08 新白砂電機株式会社 amplifier circuit
JPS6013324B2 (en) * 1976-02-25 1985-04-06 株式会社日立製作所 Direct-coupled power amplifier circuit
JPS52140738U (en) * 1976-04-19 1977-10-25
JPS586408B2 (en) * 1976-11-19 1983-02-04 松下電器産業株式会社 amplifier
JPS6115621Y2 (en) * 1976-11-20 1986-05-15
JPS5367333A (en) * 1976-11-27 1978-06-15 Nec Corp Shock noise reduction circuit for amplifier
JPS5380152A (en) * 1976-12-25 1978-07-15 Matsushita Electric Ind Co Ltd Voice circuit
JPS5823011B2 (en) * 1977-05-19 1983-05-12 株式会社東芝 differential amplifier
JPS6127210Y2 (en) * 1977-05-31 1986-08-14
JPS6033616Y2 (en) * 1977-05-31 1985-10-07 株式会社東芝 Amplifier
JPS5852728Y2 (en) * 1977-07-07 1983-12-01 松下電器産業株式会社 Click prevention circuit
JPS5852727Y2 (en) * 1977-07-07 1983-12-01 松下電器産業株式会社 Click prevention circuit
JPS54157540U (en) * 1978-04-24 1979-11-01
JPS54158143A (en) * 1978-05-15 1979-12-13 Toshiba Corp Amplifier circuit
JPS5531324A (en) * 1978-08-29 1980-03-05 Fujitsu Ltd Transient noise preventing circuit
JPS55136709A (en) * 1979-04-12 1980-10-24 Pioneer Answerphone Mfg Corp Alternating current amplifier
JPS55143807A (en) * 1979-04-27 1980-11-10 Toshiba Corp Bias circuit of linear amplifier
JPS55143806A (en) * 1979-04-27 1980-11-10 Toshiba Corp Bias circuit of linear amplifier
CA1169390A (en) * 1980-12-29 1984-06-19 Eiichiro Kawasaki Welding wire container
DE3114042A1 (en) * 1981-04-07 1982-10-21 Siemens AG, 1000 Berlin und 8000 München INTEGRATED SEMICONDUCTOR CIRCUIT WITH A COUPLED, NON-INVERTING OPERATIONAL AMPLIFIER
JPS57146414U (en) * 1981-11-12 1982-09-14
JPS58191710U (en) * 1982-06-15 1983-12-20 日本コロムビア株式会社 negative feedback amplifier
JPH0680987B2 (en) * 1985-09-30 1994-10-12 関西日本電気株式会社 Power amplifier shock noise prevention circuit
JPH07112139B2 (en) * 1986-07-09 1995-11-29 松下電器産業株式会社 Amplifier integrated circuit
JP2585249B2 (en) * 1987-03-06 1997-02-26 株式会社東芝 Shock noise prevention circuit for audio amplifier.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4525366Y1 (en) * 1968-12-11 1970-10-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2022949A (en) * 1978-05-15 1979-12-19 Tokyo Shibaura Electric Co Bias circuit for a linear amplifier
US6040740A (en) * 1997-04-09 2000-03-21 Lsi Logic Corporation Audio transient suppression device

Also Published As

Publication number Publication date
NL7213031A (en) 1973-03-29
FR2155389A5 (en) 1973-05-18
JPS5435057B2 (en) 1979-10-31
DE2247471A1 (en) 1973-04-19
JPS4841653A (en) 1973-06-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees