JPH0235487B2 - - Google Patents

Info

Publication number
JPH0235487B2
JPH0235487B2 JP56035862A JP3586281A JPH0235487B2 JP H0235487 B2 JPH0235487 B2 JP H0235487B2 JP 56035862 A JP56035862 A JP 56035862A JP 3586281 A JP3586281 A JP 3586281A JP H0235487 B2 JPH0235487 B2 JP H0235487B2
Authority
JP
Japan
Prior art keywords
signal
transistor
terminal
switching
circuit
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.)
Expired - Lifetime
Application number
JP56035862A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57150207A (en
Inventor
Terufumi Hino
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP3586281A priority Critical patent/JPS57150207A/ja
Publication of JPS57150207A publication Critical patent/JPS57150207A/ja
Publication of JPH0235487B2 publication Critical patent/JPH0235487B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP3586281A 1981-03-11 1981-03-11 Electric signal level controlling circuit Granted JPS57150207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3586281A JPS57150207A (en) 1981-03-11 1981-03-11 Electric signal level controlling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3586281A JPS57150207A (en) 1981-03-11 1981-03-11 Electric signal level controlling circuit

Publications (2)

Publication Number Publication Date
JPS57150207A JPS57150207A (en) 1982-09-17
JPH0235487B2 true JPH0235487B2 (ko) 1990-08-10

Family

ID=12453790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3586281A Granted JPS57150207A (en) 1981-03-11 1981-03-11 Electric signal level controlling circuit

Country Status (1)

Country Link
JP (1) JPS57150207A (ko)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124934A (en) * 1981-01-26 1982-08-04 Mitsubishi Electric Corp Signal switching device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124934A (en) * 1981-01-26 1982-08-04 Mitsubishi Electric Corp Signal switching device

Also Published As

Publication number Publication date
JPS57150207A (en) 1982-09-17

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