JPS56153885A - Transistor circuit - Google Patents

Transistor circuit

Info

Publication number
JPS56153885A
JPS56153885A JP5739180A JP5739180A JPS56153885A JP S56153885 A JPS56153885 A JP S56153885A JP 5739180 A JP5739180 A JP 5739180A JP 5739180 A JP5739180 A JP 5739180A JP S56153885 A JPS56153885 A JP S56153885A
Authority
JP
Japan
Prior art keywords
voltage
base
conduction
transistor
forward voltage
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
JP5739180A
Other languages
Japanese (ja)
Inventor
Yoshizo Niihori
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
Original Assignee
NEC Corp
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5739180A priority Critical patent/JPS56153885A/en
Publication of JPS56153885A publication Critical patent/JPS56153885A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To reduce the difference between the conduction voltage and the base bias voltage to make a stable separating operation possible, by reducing the change of the conduction voltage of the transistor due to temperatures in the transistor circuit for synchronizing separation of the TV receiver. CONSTITUTION:The voltage of constant-voltage element D12 connected to the emitter of transistor TR11 is divided by resistances R12 and R13, and element D11 is connected between this division point and the base. The collector of TR11 is connected to output terminal 13 and load resistance R14. The bias current is supplied to element D12 by resistance R15, and constant-current source 14 is connected to the base of TR11. Therefore, the sum of the voltage, which is divided by resistances R12 and R13, of the forward voltage of element D12 and the forward voltage of element D11 is applied to the base of TR11, and the conduction voltage of TR11 is the sum of the forward voltage of element D12 and the forward voltage between the emitter and the base of TR11. Since these voltages have temperature characteristics very close to each other in the integrated circuit formed on the single semiconductor substrate, the difference between the conduction voltage and the base bias voltage is reduced.
JP5739180A 1980-04-30 1980-04-30 Transistor circuit Pending JPS56153885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5739180A JPS56153885A (en) 1980-04-30 1980-04-30 Transistor circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5739180A JPS56153885A (en) 1980-04-30 1980-04-30 Transistor circuit

Publications (1)

Publication Number Publication Date
JPS56153885A true JPS56153885A (en) 1981-11-28

Family

ID=13054312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5739180A Pending JPS56153885A (en) 1980-04-30 1980-04-30 Transistor circuit

Country Status (1)

Country Link
JP (1) JPS56153885A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745477A (en) * 1986-07-07 1988-05-17 Rca Corporation Antijitter arrangement for synchronizing pulse separator
US5323171A (en) * 1989-05-26 1994-06-21 Seiko Epson Corporation Power circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745477A (en) * 1986-07-07 1988-05-17 Rca Corporation Antijitter arrangement for synchronizing pulse separator
US5323171A (en) * 1989-05-26 1994-06-21 Seiko Epson Corporation Power circuit

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