JPS5481750A - Active filter circuit network - Google Patents

Active filter circuit network

Info

Publication number
JPS5481750A
JPS5481750A JP15022877A JP15022877A JPS5481750A JP S5481750 A JPS5481750 A JP S5481750A JP 15022877 A JP15022877 A JP 15022877A JP 15022877 A JP15022877 A JP 15022877A JP S5481750 A JPS5481750 A JP S5481750A
Authority
JP
Japan
Prior art keywords
transfer function
adder
delivery line
output terminal
alpha1
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
JP15022877A
Other languages
Japanese (ja)
Other versions
JPS5755323B2 (en
Inventor
Hiroshi Suzuki
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
Original Assignee
NEC Corp
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15022877A priority Critical patent/JPS5481750A/en
Publication of JPS5481750A publication Critical patent/JPS5481750A/en
Publication of JPS5755323B2 publication Critical patent/JPS5755323B2/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
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Abstract

PURPOSE:To reduce the effect on the filter performance due to the variation of element, by providing the delivery line having the specific transfer function between the input terminal and the adder and between the adder and output terminal, and further, providing the feedback delivery line having the specific transfer function from the output terminal to the adder. CONSTITUTION:The delivery line 3 having the transfer function -alpha1/p (where; p=jw and alpha1 is a constant determining the transfer function) is provided between the signal input terminal 1 and the differential adder 3, and the delivery line 4 having the transfer function h(p<2>+q)/p<2>+alpha1p+b1 (where; h, q, alpha1, and b1 are the constant determining the transfer function) is provided between the adder 3 and the signal output terminal 2. Further, the delivery line 32 having the transfer function -alpha2/p (where; alpha2 is the constant determining the transfer function) is provided between the output terminal 2 and the input side of the adder 33, and the output signal is fed back to the input side of the adder 33 via the feedback path 10. Further, the effect on the filter performance due to the variation in the element in the range permitted in manufacturing the active filter circuit network can be reduced.
JP15022877A 1977-12-13 1977-12-13 Active filter circuit network Granted JPS5481750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15022877A JPS5481750A (en) 1977-12-13 1977-12-13 Active filter circuit network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15022877A JPS5481750A (en) 1977-12-13 1977-12-13 Active filter circuit network

Publications (2)

Publication Number Publication Date
JPS5481750A true JPS5481750A (en) 1979-06-29
JPS5755323B2 JPS5755323B2 (en) 1982-11-24

Family

ID=15492336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15022877A Granted JPS5481750A (en) 1977-12-13 1977-12-13 Active filter circuit network

Country Status (1)

Country Link
JP (1) JPS5481750A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267072B1 (en) 1994-11-11 2001-07-31 Nippondenso Co., Ltd. Indicating instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267072B1 (en) 1994-11-11 2001-07-31 Nippondenso Co., Ltd. Indicating instrument

Also Published As

Publication number Publication date
JPS5755323B2 (en) 1982-11-24

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