JPH0526816Y2 - - Google Patents

Info

Publication number
JPH0526816Y2
JPH0526816Y2 JP1985158313U JP15831385U JPH0526816Y2 JP H0526816 Y2 JPH0526816 Y2 JP H0526816Y2 JP 1985158313 U JP1985158313 U JP 1985158313U JP 15831385 U JP15831385 U JP 15831385U JP H0526816 Y2 JPH0526816 Y2 JP H0526816Y2
Authority
JP
Japan
Prior art keywords
circuit
inverting input
operational amplifier
variable
frequency characteristic
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
JP1985158313U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6266416U (en]
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 filed Critical
Priority to JP1985158313U priority Critical patent/JPH0526816Y2/ja
Priority to US06/919,351 priority patent/US4849709A/en
Publication of JPS6266416U publication Critical patent/JPS6266416U/ja
Application granted granted Critical
Publication of JPH0526816Y2 publication Critical patent/JPH0526816Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H03G5/12—Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
JP1985158313U 1985-10-16 1985-10-16 Expired - Lifetime JPH0526816Y2 (en])

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985158313U JPH0526816Y2 (en]) 1985-10-16 1985-10-16
US06/919,351 US4849709A (en) 1985-10-16 1986-10-16 Variable frequency characteristic circuit for a vehicular sound device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985158313U JPH0526816Y2 (en]) 1985-10-16 1985-10-16

Publications (2)

Publication Number Publication Date
JPS6266416U JPS6266416U (en]) 1987-04-24
JPH0526816Y2 true JPH0526816Y2 (en]) 1993-07-07

Family

ID=15668901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985158313U Expired - Lifetime JPH0526816Y2 (en]) 1985-10-16 1985-10-16

Country Status (2)

Country Link
US (1) US4849709A (en])
JP (1) JPH0526816Y2 (en])

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553103A (en) * 1982-06-29 1985-11-12 British Telecommunications RC-Active filters
JPS59140524U (ja) * 1983-03-08 1984-09-19 日本ビクター株式会社 周波数特性補正回路
JPS6035625U (ja) * 1983-08-17 1985-03-12 パイオニア株式会社 グラフィックイコライザ回路

Also Published As

Publication number Publication date
JPS6266416U (en]) 1987-04-24
US4849709A (en) 1989-07-18

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