JPS561603A - Amplifying circuit - Google Patents

Amplifying circuit

Info

Publication number
JPS561603A
JPS561603A JP7734279A JP7734279A JPS561603A JP S561603 A JPS561603 A JP S561603A JP 7734279 A JP7734279 A JP 7734279A JP 7734279 A JP7734279 A JP 7734279A JP S561603 A JPS561603 A JP S561603A
Authority
JP
Japan
Prior art keywords
voltage
emitter
resistance
output
vbe
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
JP7734279A
Other languages
Japanese (ja)
Other versions
JPS6057767B2 (en
Inventor
Masaharu Morita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54077342A priority Critical patent/JPS6057767B2/en
Publication of JPS561603A publication Critical patent/JPS561603A/en
Publication of JPS6057767B2 publication Critical patent/JPS6057767B2/en
Expired 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
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only

Landscapes

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

Abstract

PURPOSE:To enhance the voltage reduction properties of the amplifying circuit, by setting a fixed voltage drop level between the output point and the emitter of the transistor for differential amplifier and thus obtaining the DC output voltage equal to the application voltage of the common base of the differential amplifier at the output point. CONSTITUTION:The voltage of VCC/N (VCC: power voltage and N: integer) is applied to each base of transistors (TR)26 and 27 forming a differential amplifier. And resistance 43 having resistance value (r) is connected to the emitter of TR27, and one end of resistance 35 having the value of (1+n)r, where (n) is an optional number, is connected to the emitter of TR26 each. Then the other end of resistances 43 and 35 each is made common to be connected to current source 46, thus the current of (2+n)VBE/R flows, where VBE is the base-emitter voltage of the TR forming the current source and R is the resistance each. Then the emitter of TR27 is connected via resistance 38 to the collector of amplifying TR32 as well as to output end point 20, and the voltage drop is set to VBE to obtain the DC output voltage of VCC/N is obtained at point 20. Thus the voltage reduction properties can be enhanced for the amplifying circuit.
JP54077342A 1979-06-19 1979-06-19 amplifier circuit Expired JPS6057767B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54077342A JPS6057767B2 (en) 1979-06-19 1979-06-19 amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54077342A JPS6057767B2 (en) 1979-06-19 1979-06-19 amplifier circuit

Publications (2)

Publication Number Publication Date
JPS561603A true JPS561603A (en) 1981-01-09
JPS6057767B2 JPS6057767B2 (en) 1985-12-17

Family

ID=13631240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54077342A Expired JPS6057767B2 (en) 1979-06-19 1979-06-19 amplifier circuit

Country Status (1)

Country Link
JP (1) JPS6057767B2 (en)

Also Published As

Publication number Publication date
JPS6057767B2 (en) 1985-12-17

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