JPS5544220A - Active filter - Google Patents

Active filter

Info

Publication number
JPS5544220A
JPS5544220A JP11598778A JP11598778A JPS5544220A JP S5544220 A JPS5544220 A JP S5544220A JP 11598778 A JP11598778 A JP 11598778A JP 11598778 A JP11598778 A JP 11598778A JP S5544220 A JPS5544220 A JP S5544220A
Authority
JP
Japan
Prior art keywords
filter
realized
circuit
active filter
elements
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
JP11598778A
Other languages
Japanese (ja)
Other versions
JPS6117369B2 (en
Inventor
Ryoji Azuma
Hiroyuki Hirano
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP11598778A priority Critical patent/JPS5544220A/en
Priority to US06/074,026 priority patent/US4284965A/en
Priority to DE2936507A priority patent/DE2936507C2/en
Priority to GB7931484A priority patent/GB2035739B/en
Publication of JPS5544220A publication Critical patent/JPS5544220A/en
Publication of JPS6117369B2 publication Critical patent/JPS6117369B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

PURPOSE:To obtain the active filter as the band rejection filter reducing the number of elements, by eliminating the buffer amplifiers. CONSTITUTION:The bridged T circuit is equivalent as the circuit B, and the active filter C can be realized without buffer amplifiers, by using R0 at the common connection of the capacitors C0, C0 as the resistor determining the amount of feedback. The transfer function T(s) of this circuit C is as shown in the equation. To constitute the band rejection filter, the resistors can be determined as 1/R1+1/R3= 1/R0, and R4/R2=2. Thus, the resistor R0 at the common connections of C0, C0 can be realized with R1 and R3. Thus, the filter which can reduce the number of elements can be realized and this can be used for graphic equalizer.
JP11598778A 1978-09-11 1978-09-22 Active filter Granted JPS5544220A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11598778A JPS5544220A (en) 1978-09-22 1978-09-22 Active filter
US06/074,026 US4284965A (en) 1978-09-11 1979-09-10 Tone control device
DE2936507A DE2936507C2 (en) 1978-09-11 1979-09-10 Graphic equalizer
GB7931484A GB2035739B (en) 1978-09-11 1979-09-11 Tone control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11598778A JPS5544220A (en) 1978-09-22 1978-09-22 Active filter

Publications (2)

Publication Number Publication Date
JPS5544220A true JPS5544220A (en) 1980-03-28
JPS6117369B2 JPS6117369B2 (en) 1986-05-07

Family

ID=14676061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11598778A Granted JPS5544220A (en) 1978-09-11 1978-09-22 Active filter

Country Status (1)

Country Link
JP (1) JPS5544220A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117147A (en) * 1981-12-29 1983-07-12 東陶機器株式会社 Water supply apparatus
JPS58187014A (en) * 1982-04-26 1983-11-01 Nec Corp Active filter circuit
JPS6013132A (en) * 1983-06-30 1985-01-23 東陶機器株式会社 Toilet bowl washing apparatus
JPS60253632A (en) * 1984-05-29 1985-12-14 東陶機器株式会社 Toilet bowl cleaning apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117147A (en) * 1981-12-29 1983-07-12 東陶機器株式会社 Water supply apparatus
JPS58187014A (en) * 1982-04-26 1983-11-01 Nec Corp Active filter circuit
JPS6013132A (en) * 1983-06-30 1985-01-23 東陶機器株式会社 Toilet bowl washing apparatus
JPH0222173B2 (en) * 1983-06-30 1990-05-17 Toto Ltd
JPS60253632A (en) * 1984-05-29 1985-12-14 東陶機器株式会社 Toilet bowl cleaning apparatus

Also Published As

Publication number Publication date
JPS6117369B2 (en) 1986-05-07

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