JPS5459862A - Acoustic amplifier - Google Patents

Acoustic amplifier

Info

Publication number
JPS5459862A
JPS5459862A JP12662277A JP12662277A JPS5459862A JP S5459862 A JPS5459862 A JP S5459862A JP 12662277 A JP12662277 A JP 12662277A JP 12662277 A JP12662277 A JP 12662277A JP S5459862 A JPS5459862 A JP S5459862A
Authority
JP
Japan
Prior art keywords
resistance
terminal
input terminal
connection
capacity
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
JP12662277A
Other languages
Japanese (ja)
Other versions
JPS6122484B2 (en
Inventor
Ryuichi Kioka
Masanobu Shinoda
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.)
NEC Corp
NEC Engineering Ltd
Original Assignee
NEC Corp
NEC Engineering Ltd
Nippon Electric Co 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 NEC Corp, NEC Engineering Ltd, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12662277A priority Critical patent/JPS5459862A/en
Publication of JPS5459862A publication Critical patent/JPS5459862A/en
Publication of JPS6122484B2 publication Critical patent/JPS6122484B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

PURPOSE:To prevent the shock of the switch-on by securing the rise of identical potential for both non-inverse input terminal and the inverse input terminal. CONSTITUTION:The breeder circuit in which 1st and 2nd resistance 7 and 9 connected between power trminal 5 and earth terminal 6 are connected in series is provided, along with differential input acoustic amplifier 14 containing non-inverse input terminal 1 connected electrically to connection 2 between resistance 7 and 9 plus 3rd resistance 11 connected between output terminal 4 and inverse input terminal 3. In addition, the following units are added to prevent the shock caused by the switch-on: 4th resistance 10 connected between terminal 3 of amplifier 14 and common terminal 6; the serial circuit of 1st capacity 13; 2nd capacity 12 connected between terminal 6 and connection 2 of resistance 7 and 9; and in-phase amplifier 15 in which the input terminal is connected to connection 2 of resistance 7 and 9 and the output is connected to the connection of resistance 10 and capacity 13 with multiplication of DC gain 1. Thus, the shock of the switch-on can be prevented.
JP12662277A 1977-10-20 1977-10-20 Acoustic amplifier Granted JPS5459862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12662277A JPS5459862A (en) 1977-10-20 1977-10-20 Acoustic amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12662277A JPS5459862A (en) 1977-10-20 1977-10-20 Acoustic amplifier

Publications (2)

Publication Number Publication Date
JPS5459862A true JPS5459862A (en) 1979-05-14
JPS6122484B2 JPS6122484B2 (en) 1986-05-31

Family

ID=14939744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12662277A Granted JPS5459862A (en) 1977-10-20 1977-10-20 Acoustic amplifier

Country Status (1)

Country Link
JP (1) JPS5459862A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736010U (en) * 1980-08-09 1982-02-25
JP2008199665A (en) * 2008-04-25 2008-08-28 Ricoh Co Ltd Constant voltage circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736010U (en) * 1980-08-09 1982-02-25
JP2008199665A (en) * 2008-04-25 2008-08-28 Ricoh Co Ltd Constant voltage circuit

Also Published As

Publication number Publication date
JPS6122484B2 (en) 1986-05-31

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