JPS57186813A - Parallel amplifying circuit - Google Patents

Parallel amplifying circuit

Info

Publication number
JPS57186813A
JPS57186813A JP56072035A JP7203581A JPS57186813A JP S57186813 A JPS57186813 A JP S57186813A JP 56072035 A JP56072035 A JP 56072035A JP 7203581 A JP7203581 A JP 7203581A JP S57186813 A JPS57186813 A JP S57186813A
Authority
JP
Japan
Prior art keywords
circuit
output
voltage
connecting point
amplifier
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.)
Pending
Application number
JP56072035A
Other languages
Japanese (ja)
Inventor
Ryuichi Fukuda
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia 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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP56072035A priority Critical patent/JPS57186813A/en
Publication of JPS57186813A publication Critical patent/JPS57186813A/en
Pending legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Abstract

PURPOSE: To obtain an output signal having no distortion, by connecting 2 resistances in series between output terminals of the first and second amplifying circuits, and negative-feeding back the voltage in the connecting point between said resistances, to the second amplifier.
CONSTITUTION: An electric power amplifying circuit 2 and 3 contain a driver, respectively, and to an operational amplifier 4, an input of the circuit 2 and output voltage are inputted. Also, the impedance 7 and 8 are connected between output terminals of the circuit 2 and 3, respectively, and an output current i2 and i3 are synthesized and outputted. Also, between the output terminals, a resistance 5 and 6 are connected in series, and the connecting point of the resistance 5 and 6 is connected to an inverted input terminal of the operational amplifier 4. In this way, voltage of this connecting point is negative-fed back to the circuit 3, and equalizes 2 input terminals of the amplifier 4. As a result, an output signal having no distortion can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP56072035A 1981-05-13 1981-05-13 Parallel amplifying circuit Pending JPS57186813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072035A JPS57186813A (en) 1981-05-13 1981-05-13 Parallel amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072035A JPS57186813A (en) 1981-05-13 1981-05-13 Parallel amplifying circuit

Publications (1)

Publication Number Publication Date
JPS57186813A true JPS57186813A (en) 1982-11-17

Family

ID=13477742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072035A Pending JPS57186813A (en) 1981-05-13 1981-05-13 Parallel amplifying circuit

Country Status (1)

Country Link
JP (1) JPS57186813A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044758A (en) * 1973-08-23 1975-04-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044758A (en) * 1973-08-23 1975-04-22

Similar Documents

Publication Publication Date Title
JPS5753112A (en) Sepp power amplifier
JPS5552611A (en) Constant-current circuit
JPS55136708A (en) Voltage current conversion circuit
JPS54101306A (en) Reproduction amplifier circuit for hall head
JPS57135370A (en) Level detecting circuit
JPS5483746A (en) Amplifier circuit
JPS57186813A (en) Parallel amplifying circuit
JPS57141108A (en) Current mode preamplifier
JPS5787216A (en) Amplifying circuit
JPS5680906A (en) Acoustic power amplifier
JPS57154065A (en) Current voltage converter
JPS555552A (en) Dc reproducing circuit
JPS5728407A (en) Amplifying circuit
DE3168657D1 (en) Filter circuit suitable for being fabricated into integrated circuit
JPS57194611A (en) Branching and coupling circuit
JPS6454936A (en) Binary/ternary value converting circuit
JPS5620315A (en) Low-frequency amplifying circuit
JPS566530A (en) Multiinput analog switch circuit
JPS5592028A (en) Signal switching circuit
JPS57173205A (en) Btl amplifier
JPS5735403A (en) Amplifier
JPS55138907A (en) Complementary differential amplifying circuit
JPS5593392A (en) Subscriber circuit
JPS5560314A (en) Protective device for amplifier circuit
JPS55151840A (en) Two-terminal signal generating circuit