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JPS5715509A - Power supply circuit for power amplifier - Google Patents

Power supply circuit for power amplifier

Info

Publication number
JPS5715509A
JPS5715509A JP9002180A JP9002180A JPS5715509A JP S5715509 A JPS5715509 A JP S5715509A JP 9002180 A JP9002180 A JP 9002180A JP 9002180 A JP9002180 A JP 9002180A JP S5715509 A JPS5715509 A JP S5715509A
Authority
JP
Japan
Prior art keywords
power supply
supply circuit
power amplifier
power
amplifier
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
JP9002180A
Other languages
Japanese (ja)
Inventor
Yoshiki Iwasaki
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP9002180A priority Critical patent/JPS5715509A/en
Publication of JPS5715509A publication Critical patent/JPS5715509A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To reduce the loss in case of no signal and to operate a power amplifier efficiently, by picking up the upper rank bits of a digital signal and controlling the power supply voltage of the power amplifier.
CONSTITUTION: A m-bit among an n-bit digital signal inputted to an input terminal 13 is applied to a D/A converter 18 to supply to a power supply circuit 20. The power supply circuit 20 supplies DC voltage to a power amplifier 17 as the power supply voltage in synchronizing with the input analog signal waveform.
COPYRIGHT: (C)1982,JPO&Japio
JP9002180A 1980-07-03 1980-07-03 Power supply circuit for power amplifier Pending JPS5715509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9002180A JPS5715509A (en) 1980-07-03 1980-07-03 Power supply circuit for power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9002180A JPS5715509A (en) 1980-07-03 1980-07-03 Power supply circuit for power amplifier

Publications (1)

Publication Number Publication Date
JPS5715509A true JPS5715509A (en) 1982-01-26

Family

ID=13987035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9002180A Pending JPS5715509A (en) 1980-07-03 1980-07-03 Power supply circuit for power amplifier

Country Status (1)

Country Link
JP (1) JPS5715509A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152741A (en) * 1981-03-17 1982-09-21 Onkyo Corp System for regeneration of pcm signal
JPS58141609U (en) * 1982-03-18 1983-09-24 三洋電機株式会社 Amplifier
US4873493A (en) * 1987-02-20 1989-10-10 Victor Company Of Japan, Ltd. Audio amplifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144857A (en) * 1974-10-16 1976-04-16 Hitachi Ltd DENGENDENAT SUSEIGYOGATAZOFUKUKI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144857A (en) * 1974-10-16 1976-04-16 Hitachi Ltd DENGENDENAT SUSEIGYOGATAZOFUKUKI

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152741A (en) * 1981-03-17 1982-09-21 Onkyo Corp System for regeneration of pcm signal
JPS58141609U (en) * 1982-03-18 1983-09-24 三洋電機株式会社 Amplifier
US4873493A (en) * 1987-02-20 1989-10-10 Victor Company Of Japan, Ltd. Audio amplifier

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