JPS5443447A - Click preventing circuit - Google Patents

Click preventing circuit

Info

Publication number
JPS5443447A
JPS5443447A JP10958877A JP10958877A JPS5443447A JP S5443447 A JPS5443447 A JP S5443447A JP 10958877 A JP10958877 A JP 10958877A JP 10958877 A JP10958877 A JP 10958877A JP S5443447 A JPS5443447 A JP S5443447A
Authority
JP
Japan
Prior art keywords
fixed time
click
switching
rise
signal
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
JP10958877A
Other languages
Japanese (ja)
Inventor
Noriji Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10958877A priority Critical patent/JPS5443447A/en
Publication of JPS5443447A publication Critical patent/JPS5443447A/en
Pending 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 secure an automatic passage of the signal after blocking the click through cut-off of the amplifier circuit for a fixed time by having switching with the switching signal which is delayed for a fixed time by the rise of the two positive and negative power sources. CONSTITUTION:FFT1 functioning as a semiconductor switch is provided between the input terminal and amplifier 12, and positive and negative bias supply circuit 142 and 143 are installed to the base electrode of FET1. Here, the rise of plus power voltage +B is made slower than that of minus power voltage -B, and switching is given with the switching signal which is delayed for a fixed time compared with the rise of +B. As a result, amplifier 11 and 12 are cut off for a fixed time to block the click, and then the signal can pass automatically.
JP10958877A 1977-09-12 1977-09-12 Click preventing circuit Pending JPS5443447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10958877A JPS5443447A (en) 1977-09-12 1977-09-12 Click preventing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10958877A JPS5443447A (en) 1977-09-12 1977-09-12 Click preventing circuit

Publications (1)

Publication Number Publication Date
JPS5443447A true JPS5443447A (en) 1979-04-06

Family

ID=14514060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10958877A Pending JPS5443447A (en) 1977-09-12 1977-09-12 Click preventing circuit

Country Status (1)

Country Link
JP (1) JPS5443447A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115940A (en) * 1984-07-03 1986-01-24 Nippon Funmatsu Gokin Kk Method for obtaining colored iron sintered alloy
JPS61122976A (en) * 1984-11-19 1986-06-10 Matsushita Electric Ind Co Ltd Pick up driving device
JPH0193906A (en) * 1987-10-05 1989-04-12 Rohm Co Ltd Audio amplifying circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115940A (en) * 1984-07-03 1986-01-24 Nippon Funmatsu Gokin Kk Method for obtaining colored iron sintered alloy
JPS61122976A (en) * 1984-11-19 1986-06-10 Matsushita Electric Ind Co Ltd Pick up driving device
JPH0570230B2 (en) * 1984-11-19 1993-10-04 Matsushita Electric Ind Co Ltd
JPH0193906A (en) * 1987-10-05 1989-04-12 Rohm Co Ltd Audio amplifying circuit
JPH0666593B2 (en) * 1987-10-05 1994-08-24 ローム株式会社 Audio amplifier circuit

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