JPS56745A - Transistor logic circuit - Google Patents

Transistor logic circuit

Info

Publication number
JPS56745A
JPS56745A JP7586979A JP7586979A JPS56745A JP S56745 A JPS56745 A JP S56745A JP 7586979 A JP7586979 A JP 7586979A JP 7586979 A JP7586979 A JP 7586979A JP S56745 A JPS56745 A JP S56745A
Authority
JP
Japan
Prior art keywords
power supply
potential
variation
resistances
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.)
Pending
Application number
JP7586979A
Other languages
Japanese (ja)
Inventor
Masahiro Ueda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7586979A priority Critical patent/JPS56745A/en
Publication of JPS56745A publication Critical patent/JPS56745A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/082—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using bipolar transistors
    • H03K19/086—Emitter coupled logic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To make stable the output voltage against the variation of positive power supply, by providing the circuit controlling the load current of differential pair transistor TR, in the emitter coupled logic ECL using positive power supply. CONSTITUTION:The current control circuit C to pick up the current according to the voltage variation of the positive power supply Vcc is constituted with TRQ6 connected to the common points P of the load resistances R1, R1, R3 of the differential amplifier circuit A, resistance Rc, and base bias resistances R4, R5 of TRQ6. Further, by selecting the value of resistances R4, R5, R3, Rc to satisfy the relation of equation, the change in the flowing-out current Ic at the connection P against the variation of the power supply Vcc is operated so that the voltage at point P is not subjected to the positive potential to make stable the potential at the point P. Accordingly, the potential of output O and inversion O' in the circuit B is made stable.
JP7586979A 1979-06-15 1979-06-15 Transistor logic circuit Pending JPS56745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7586979A JPS56745A (en) 1979-06-15 1979-06-15 Transistor logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7586979A JPS56745A (en) 1979-06-15 1979-06-15 Transistor logic circuit

Publications (1)

Publication Number Publication Date
JPS56745A true JPS56745A (en) 1981-01-07

Family

ID=13588689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7586979A Pending JPS56745A (en) 1979-06-15 1979-06-15 Transistor logic circuit

Country Status (1)

Country Link
JP (1) JPS56745A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01259622A (en) * 1988-04-11 1989-10-17 Hitachi Ltd Logical circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01259622A (en) * 1988-04-11 1989-10-17 Hitachi Ltd Logical circuit

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