JPS5459861A - Acoustic amplifier ciruit - Google Patents

Acoustic amplifier ciruit

Info

Publication number
JPS5459861A
JPS5459861A JP12662177A JP12662177A JPS5459861A JP S5459861 A JPS5459861 A JP S5459861A JP 12662177 A JP12662177 A JP 12662177A JP 12662177 A JP12662177 A JP 12662177A JP S5459861 A JPS5459861 A JP S5459861A
Authority
JP
Japan
Prior art keywords
terminal
input terminal
amplifier
resistance
power source
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
JP12662177A
Other languages
Japanese (ja)
Other versions
JPS6233766B2 (en
Inventor
Ryuichi Kioka
Masanobu Shinoda
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
NEC Engineering Ltd
Original Assignee
NEC Corp
NEC Engineering Ltd
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, NEC Engineering Ltd, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12662177A priority Critical patent/JPS5459861A/en
Publication of JPS5459861A publication Critical patent/JPS5459861A/en
Publication of JPS6233766B2 publication Critical patent/JPS6233766B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • H03C7/025—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices
    • H03C7/027—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices using diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To reduce greatly the effect of the power source ripple by applying the signal which features the same phase and nearly same level as the power source ripple signal to be applied to the non-inverse input terminal of the differential input acoustic amplifier to the inverse input terminal of the acoustic amplifier as well. CONSTITUTION:The breeder circuit in which 1st and 2nd resistance 7 and 8 connected between power terminal 5 and common terminal 6 are connected in series is provided, along with differential input acoustic amplifier 14 containing non-inverse input terminal 1, inverse input terminal 3 and output terminal 4 plus 3rd resistance 11 connected between terminal 4 and 3. In addition, the connecting means provided between input terminal 1 of amplifier 14 and connection 2 of registance 7 and 8 in the breeder circuit, i.e., 1st capacity 13 between terminal 6 and connection 2 between resistance 7 and 8 is provided with in-phase amplifier 14' in which the input terminal is connected to connection 2 between resistance 7 and 8 and the output terminal is connected to input terminal 3 of amplifier 14 via the serial circuit of 4th resistance 10 and 2nd capacity 12. Thus, the effect of the power source ripple can be reduced greatly.
JP12662177A 1977-10-20 1977-10-20 Acoustic amplifier ciruit Granted JPS5459861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12662177A JPS5459861A (en) 1977-10-20 1977-10-20 Acoustic amplifier ciruit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12662177A JPS5459861A (en) 1977-10-20 1977-10-20 Acoustic amplifier ciruit

Publications (2)

Publication Number Publication Date
JPS5459861A true JPS5459861A (en) 1979-05-14
JPS6233766B2 JPS6233766B2 (en) 1987-07-22

Family

ID=14939720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12662177A Granted JPS5459861A (en) 1977-10-20 1977-10-20 Acoustic amplifier ciruit

Country Status (1)

Country Link
JP (1) JPS5459861A (en)

Also Published As

Publication number Publication date
JPS6233766B2 (en) 1987-07-22

Similar Documents

Publication Publication Date Title
JPS5394162A (en) Power amplifier
JPS5459861A (en) Acoustic amplifier ciruit
JPS5261945A (en) Transistor circuit
JPS6411404A (en) Double balance type mixer circuit
JPS53126844A (en) Output amplifier
JPS5459862A (en) Acoustic amplifier
JPS5537046A (en) Subscriber's circuit
JPS6465921A (en) Waveform shaping circuit
JPS55154817A (en) Gradient signal generating circuit
JPS54157066A (en) Pulse width modulation output amplifying circuit
JPS54100211A (en) Active 2-4 line converter circuit
JPS554130A (en) Schmitt circuit
JPS53131458A (en) Constant voltage circuit
JPS5593311A (en) Loudness circuit unit
JPS5363956A (en) Power amplifier
JPS53105163A (en) Current amplifier circuit
JPS55614A (en) Frequency characteristic adjustment circuit
JPS5247715A (en) Earplug type handset equipped with an input-output separator
JPS5568729A (en) Input circuit with input level decision
JPS5466053A (en) Balance-unbalance converter
JPS5434665A (en) Astable multivibrator
JPS562711A (en) Ripple eliminating circuit
JPS5635590A (en) Frequency converting circuit
JPS5325337A (en) Amplifier circuit
JPS5768662A (en) Voltage converting circuit