JPS5449053A - Signal converter circuit - Google Patents

Signal converter circuit

Info

Publication number
JPS5449053A
JPS5449053A JP11578377A JP11578377A JPS5449053A JP S5449053 A JPS5449053 A JP S5449053A JP 11578377 A JP11578377 A JP 11578377A JP 11578377 A JP11578377 A JP 11578377A JP S5449053 A JPS5449053 A JP S5449053A
Authority
JP
Japan
Prior art keywords
current
decreases
equal
deltai
emitter
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
JP11578377A
Other languages
Japanese (ja)
Other versions
JPS618603B2 (en
Inventor
Akira Yamakoshi
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 JP11578377A priority Critical patent/JPS5449053A/en
Publication of JPS5449053A publication Critical patent/JPS5449053A/en
Publication of JPS618603B2 publication Critical patent/JPS618603B2/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
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3083—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type
    • H03F3/3086—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal
    • H03F3/3094—Phase splitters therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Processing Of Color Television Signals (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To reduce asymmetrical distortion by forming a negative feedback path, for example, when a single end signal is converted into a differential signal by the use of a current mirror. CONSTITUTION:Diode D1 is connected to the current path of transistor Q2 and fed back to Q3 and diode D2 of bias circuit 2 via feedback path l. At half the positive cycle of input signal current (i) to terminal 3, positive current (i1') which is (DELTAi) greater than the peak value of negative current (i1) flowing to Q1 flows to Q2 and another equation is satisfied. On the other hand, current (i1'') of Q3 becomes equal to 1/2 i1' and also equal to 1/3i+1/2DELTAi. Since (i) equals to (i1)+(i1''), the current flowing to Q1 through the action of the feedback loop decreases and the decrement of the voltage between the base and emitter of Q1 also decreases. The increment of the voltage between the base and emitter of Q2, therefore, decreases and (DELTAi) is reduced. As a result, currents i1 and i1' of Q1 and Q2 are controlled to be equal, thereby making it possible to obtain signals Sa and Sb with a little asymmetrical distortion.
JP11578377A 1977-09-27 1977-09-27 Signal converter circuit Granted JPS5449053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11578377A JPS5449053A (en) 1977-09-27 1977-09-27 Signal converter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11578377A JPS5449053A (en) 1977-09-27 1977-09-27 Signal converter circuit

Publications (2)

Publication Number Publication Date
JPS5449053A true JPS5449053A (en) 1979-04-18
JPS618603B2 JPS618603B2 (en) 1986-03-15

Family

ID=14670944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11578377A Granted JPS5449053A (en) 1977-09-27 1977-09-27 Signal converter circuit

Country Status (1)

Country Link
JP (1) JPS5449053A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040963A (en) * 1983-08-17 1985-03-04 Nec Corp Electric current detecting circuit
JPS6369305A (en) * 1986-09-11 1988-03-29 Seikosha Co Ltd Current amplifier circuit
JPS6369304A (en) * 1986-09-11 1988-03-29 Seikosha Co Ltd Current amplification type differential current converting circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040963A (en) * 1983-08-17 1985-03-04 Nec Corp Electric current detecting circuit
JPS6369305A (en) * 1986-09-11 1988-03-29 Seikosha Co Ltd Current amplifier circuit
JPS6369304A (en) * 1986-09-11 1988-03-29 Seikosha Co Ltd Current amplification type differential current converting circuit

Also Published As

Publication number Publication date
JPS618603B2 (en) 1986-03-15

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