IT1126357B - Circuito integrato a semiconduttori di potenza monolitico acustico e impianto acustico impiegante tale circuito - Google Patents

Circuito integrato a semiconduttori di potenza monolitico acustico e impianto acustico impiegante tale circuito

Info

Publication number
IT1126357B
IT1126357B IT27452/79A IT2745279A IT1126357B IT 1126357 B IT1126357 B IT 1126357B IT 27452/79 A IT27452/79 A IT 27452/79A IT 2745279 A IT2745279 A IT 2745279A IT 1126357 B IT1126357 B IT 1126357B
Authority
IT
Italy
Prior art keywords
circuit
semiconductors
sound system
acoustic power
integrated circuit
Prior art date
Application number
IT27452/79A
Other languages
English (en)
Other versions
IT7927452A0 (it
Inventor
Kunio Seki
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 IT7927452A0 publication Critical patent/IT7927452A0/it
Application granted granted Critical
Publication of IT1126357B publication Critical patent/IT1126357B/it

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
    • H03F3/3083—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type
    • H03F3/3086—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal
    • H03F3/3088—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal with asymmetric control, i.e. one control branch containing a supplementary phase inverting transistor
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Stereophonic System (AREA)
IT27452/79A 1978-11-24 1979-11-20 Circuito integrato a semiconduttori di potenza monolitico acustico e impianto acustico impiegante tale circuito IT1126357B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14419978A JPS5571400A (en) 1978-11-24 1978-11-24 Monolithic power ic and acoustic unit

Publications (2)

Publication Number Publication Date
IT7927452A0 IT7927452A0 (it) 1979-11-20
IT1126357B true IT1126357B (it) 1986-05-21

Family

ID=15356511

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27452/79A IT1126357B (it) 1978-11-24 1979-11-20 Circuito integrato a semiconduttori di potenza monolitico acustico e impianto acustico impiegante tale circuito

Country Status (8)

Country Link
US (1) US4321428A (it)
JP (1) JPS5571400A (it)
DE (1) DE2946986A1 (it)
GB (1) GB2036493B (it)
HK (1) HK37185A (it)
IT (1) IT1126357B (it)
MY (1) MY8500829A (it)
SG (1) SG63684G (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404527A (en) * 1980-11-03 1983-09-13 General Motors Corporation Bridge audio amplifier including low level fade control
US4550427A (en) * 1981-03-30 1985-10-29 Thomas Jefferson University Artificial larynx
US4517528A (en) * 1981-10-31 1985-05-14 Sansui Electric Co., Ltd. Amplifier circuit driven by ground isolated power supply
JPS62188874U (it) * 1986-05-20 1987-12-01
JP2690300B2 (ja) * 1986-10-15 1997-12-10 三菱電機株式会社 ダイバシティ半導体集積回路
JPH0732520B2 (ja) * 1987-03-10 1995-04-10 三洋電機株式会社 ステレオ型音響装置の音場拡大回路
JP2884651B2 (ja) * 1989-12-29 1999-04-19 ヤマハ株式会社 音響装置
JP3167319B2 (ja) * 1990-10-25 2001-05-21 パイオニア株式会社 アイソレータ回路
US5194824A (en) * 1992-01-23 1993-03-16 Intel Corporation 5V Rail-rail unity gain amplifier driving high capacitive load
DE4203353A1 (de) * 1992-02-06 1993-08-12 Philips Patentverwaltung Tonsignal-verstaerker
US5512857A (en) * 1994-11-22 1996-04-30 Resound Corporation Class AB amplifier allowing quiescent current and gain to be set independently
US5973368A (en) * 1996-06-05 1999-10-26 Pearce; Lawrence G. Monolithic class D amplifier
SG71047A1 (en) * 1997-09-27 2000-03-21 Majeel Lab Pte Ltd Amplifier circuit employing floating error cancellation
US7006643B2 (en) * 2001-06-08 2006-02-28 Logitech Europe S.A. Differential audio amplification system
US7202749B2 (en) * 2004-09-27 2007-04-10 Broadcom Corporation AC coupling technique for improved noise performance and simple biasing
JP2010161482A (ja) * 2009-01-06 2010-07-22 Audio Technica Corp フィルター回路
JP5666249B2 (ja) * 2010-11-04 2015-02-12 アルパイン株式会社 音声出力装置
JP2018137566A (ja) * 2017-02-21 2018-08-30 株式会社村田製作所 電力増幅回路

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134141B (de) * 1959-06-13 1962-08-02 Nordmende Potentiometer zur Lautstaerkeregelung fuer Geraete zur stereophonischen Klangwiedergabe
FR1459777A (fr) * 1965-05-24 1966-06-17 Labo Cent Telecommunicat Générateur de tension variable à potentiel de référence flottant
US3542953A (en) * 1967-08-29 1970-11-24 Baldwin Co D H Amplifiers powered from a single power supply and driven contraphasally
GB1204617A (en) * 1968-04-10 1970-09-09 Cossor Ltd A C Circuit providing a floating output
US3577090A (en) * 1969-08-25 1971-05-04 Shell Oil Co Fast settling, stable amplifier circuit
CA997000A (en) * 1969-12-29 1976-09-14 Allen L. Limberg Multiplex decoding system
US3757047A (en) * 1970-05-21 1973-09-04 Sansui Electric Co Four channel sound reproduction system
CA942198A (en) * 1970-09-15 1974-02-19 Kazuho Ohta Multidimensional stereophonic reproducing system
DE2125398C3 (de) * 1971-05-21 1974-04-04 Sansui Electric Co. Ltd., Tokio Klangwiedergabesystem
FR2142880B3 (it) * 1971-06-25 1974-04-05 Penna Marius
GB1370108A (en) * 1971-12-15 1974-10-09 Plessey Co Ltd Semiconductor circuit arrangements
JPS4837602B1 (it) * 1972-07-04 1973-11-12
GB1454894A (en) * 1972-09-07 1976-11-03 Emi Ltd Loudspeakers and circuit arrangements therefor
DE2253987C3 (de) * 1972-11-03 1979-10-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Audioverstärker für zweikanalige Wiedergabe
GB1467059A (en) * 1973-05-24 1977-03-16 Rca Corp Stabilized amplifier
GB1530795A (en) * 1975-10-31 1978-11-01 Gen Electric Co Ltd Audio-frequency amplifier arrangements
DE2618030C3 (de) * 1976-04-24 1982-01-21 Dipl.Ing. Ulrich Knick Elektronische Meßgeräte GmbH & Co, 1000 Berlin Schaltung mit integrierten Operationsverstärkern und erhöhter Ausgangsstrombelastbarkeit
US4081757A (en) * 1976-11-19 1978-03-28 Altec Corporation Parallel power amplifier circuits

Also Published As

Publication number Publication date
DE2946986A1 (de) 1980-06-04
IT7927452A0 (it) 1979-11-20
HK37185A (en) 1985-05-24
GB2036493B (en) 1983-09-07
GB2036493A (en) 1980-06-25
JPS5571400A (en) 1980-05-29
MY8500829A (en) 1985-12-31
SG63684G (en) 1985-03-15
US4321428A (en) 1982-03-23

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