JPS56106406A - Audio amplifier - Google Patents

Audio amplifier

Info

Publication number
JPS56106406A
JPS56106406A JP894980A JP894980A JPS56106406A JP S56106406 A JPS56106406 A JP S56106406A JP 894980 A JP894980 A JP 894980A JP 894980 A JP894980 A JP 894980A JP S56106406 A JPS56106406 A JP S56106406A
Authority
JP
Japan
Prior art keywords
supplied
amplifier
current
converted
output
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
JP894980A
Other languages
Japanese (ja)
Inventor
Kazuo Yamaguchi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP894980A priority Critical patent/JPS56106406A/en
Priority to US06/228,960 priority patent/US4389620A/en
Priority to AU66675/81A priority patent/AU533327B2/en
Priority to DE19813102988 priority patent/DE3102988A1/en
Priority to NL8100440A priority patent/NL8100440A/en
Priority to FR8101746A priority patent/FR2474787A1/en
Priority to GB8102693A priority patent/GB2069786B/en
Publication of JPS56106406A publication Critical patent/JPS56106406A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To avoid the effect of nonlinear distortion and thus enhance the characteristics, by using the current mode for process and transmission of an internal signal.
CONSTITUTION: Each of the signals which are converted into the current signals from the voltage singals by the amplifiers 6, 10, 11, 14 and 15 is supplied to the switch means 8 and then processed in the current mode to be transmitted successively. The output of the tone control circuit 21 is supplied to the variable resistor 27 provided to the output side of the circuit 21. The resistor 27 is inserted into the input terminal of the power amplifier 28 of the next stage so as to vary the resistance value itself. Thus the gain is controlled for the amplifier 28. The current signal supplied to the amplifier 28 is converted there into the voltage signal to be delivered to the output terminal 29.
COPYRIGHT: (C)1981,JPO&Japio
JP894980A 1980-01-29 1980-01-29 Audio amplifier Pending JPS56106406A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP894980A JPS56106406A (en) 1980-01-29 1980-01-29 Audio amplifier
US06/228,960 US4389620A (en) 1980-01-29 1981-01-27 Current transfer amplifier
AU66675/81A AU533327B2 (en) 1980-01-29 1981-01-28 Current amplifier
DE19813102988 DE3102988A1 (en) 1980-01-29 1981-01-29 POWER AMPLIFIER
NL8100440A NL8100440A (en) 1980-01-29 1981-01-29 POWER AMPLIFIER.
FR8101746A FR2474787A1 (en) 1980-01-29 1981-01-29 CURRENT TRANSFER AMPLIFIER
GB8102693A GB2069786B (en) 1980-01-29 1981-01-29 Signal transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP894980A JPS56106406A (en) 1980-01-29 1980-01-29 Audio amplifier

Publications (1)

Publication Number Publication Date
JPS56106406A true JPS56106406A (en) 1981-08-24

Family

ID=11706916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP894980A Pending JPS56106406A (en) 1980-01-29 1980-01-29 Audio amplifier

Country Status (1)

Country Link
JP (1) JPS56106406A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008147571A (en) * 2006-12-13 2008-06-26 Nippon Seiki Co Ltd Angle detection apparatus
JP2019528649A (en) * 2016-09-14 2019-10-10 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Filter circuit with programmable gain and frequency response

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54854A (en) * 1977-06-03 1979-01-06 Sharp Corp Multi-function analog signal process circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54854A (en) * 1977-06-03 1979-01-06 Sharp Corp Multi-function analog signal process circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008147571A (en) * 2006-12-13 2008-06-26 Nippon Seiki Co Ltd Angle detection apparatus
JP2019528649A (en) * 2016-09-14 2019-10-10 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Filter circuit with programmable gain and frequency response

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