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JPS5687905A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS5687905A
JPS5687905A JP16532979A JP16532979A JPS5687905A JP S5687905 A JPS5687905 A JP S5687905A JP 16532979 A JP16532979 A JP 16532979A JP 16532979 A JP16532979 A JP 16532979A JP S5687905 A JPS5687905 A JP S5687905A
Authority
JP
Japan
Prior art keywords
amplifier
input terminal
impedance
terminal
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.)
Granted
Application number
JP16532979A
Other languages
Japanese (ja)
Other versions
JPS6052602B2 (en
Inventor
Tadao 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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP16532979A priority Critical patent/JPS6052602B2/en
Publication of JPS5687905A publication Critical patent/JPS5687905A/en
Publication of JPS6052602B2 publication Critical patent/JPS6052602B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Abstract

PURPOSE: To make low the noise and to obtain an arbitrary frequency characteristics, by forming the amplifier with an operational amplifier for signal, operational amplifier for active input impedance and two-terminal impedance circuit, and inputting a signal source to the operational amplifier for signal.
CONSTITUTION: The output terminal of an operational amplifier 10 for signal is connected to the inverting input terminal via a two-terminal impedance circuit 30 to give a frequency characteristic. The connected point between the circuit 30 and the inverting input terminal of the amplifier 10 is connected to the inverting input terminal of the operational amplifier 20 for the active input impedance, via a resistor R1. Further, the output terminal of the amplifier 20 is connected to the inverting input terminal via a resistor R2, and the output terminal is connected to the noninverting input terminal of the amplifier 10 via a resistor R3. The noninverting input terminal of said amplifier 20 is grounded and the signal source is connected to the noninverting input terminal of the amplifier 10. In such a circuit eO/eS is the gain itself of the amplifier, and the gain is lowered by the attenuation by the input impedance to increase the S/N. Further, an arbitrary frequency characteristics can be given through the impedance β of the circuit 30.
COPYRIGHT: (C)1981,JPO&Japio
JP16532979A 1979-12-18 1979-12-18 amplifier Expired JPS6052602B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16532979A JPS6052602B2 (en) 1979-12-18 1979-12-18 amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16532979A JPS6052602B2 (en) 1979-12-18 1979-12-18 amplifier

Publications (2)

Publication Number Publication Date
JPS5687905A true JPS5687905A (en) 1981-07-17
JPS6052602B2 JPS6052602B2 (en) 1985-11-20

Family

ID=15810258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16532979A Expired JPS6052602B2 (en) 1979-12-18 1979-12-18 amplifier

Country Status (1)

Country Link
JP (1) JPS6052602B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136616U (en) * 1985-02-15 1986-08-25
JPS61136617U (en) * 1985-02-15 1986-08-25

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0341924Y2 (en) * 1985-11-13 1991-09-03
JPS62211901A (en) * 1986-03-12 1987-09-17 株式会社タイセー Resistor for speed control of automobile blower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136616U (en) * 1985-02-15 1986-08-25
JPS61136617U (en) * 1985-02-15 1986-08-25

Also Published As

Publication number Publication date
JPS6052602B2 (en) 1985-11-20

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