JPS572185A - Color output circuit of color television picture receiver - Google Patents

Color output circuit of color television picture receiver

Info

Publication number
JPS572185A
JPS572185A JP7627180A JP7627180A JPS572185A JP S572185 A JPS572185 A JP S572185A JP 7627180 A JP7627180 A JP 7627180A JP 7627180 A JP7627180 A JP 7627180A JP S572185 A JPS572185 A JP S572185A
Authority
JP
Japan
Prior art keywords
color
resistance
output amplifier
output
bias
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
JP7627180A
Other languages
Japanese (ja)
Inventor
Hideaki Shima
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP7627180A priority Critical patent/JPS572185A/en
Publication of JPS572185A publication Critical patent/JPS572185A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To ensure an extremely simple adjustment for the white balance or the like, by constituting a circuit in such way that both the drive and bias adjustments of a color output can be done independently with each variable resistance. CONSTITUTION:A series resistance of color bias controlling variable resistances VR12, VR22 and VR32 is inserted between the earth and the emitter of each of color output amplifying transistors TRQ1-Q3. At the same time, color drive controlling variable resistances VR11, VR21 and VR31 are inserted between points of connection b1-b3 of emitters a1-a3 of the TRQ1-Q3 plus voltage dividing resistances R15 and R16, R25 and R26, and R35and R36. Thus a bridge circuit is obtained. As a result, only the working bias point of a cathode electrode KR of a CRT can be shifted with the gain of an R output amplifier kept as it is by controlling e.g. the resistance VR12. On the other hand, the working bias point of the R output amplifier has virtually no fluctuation and only the gain of the R output amplifier varies in case when the resistance VR11 is adjusted.
JP7627180A 1980-06-05 1980-06-05 Color output circuit of color television picture receiver Pending JPS572185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7627180A JPS572185A (en) 1980-06-05 1980-06-05 Color output circuit of color television picture receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7627180A JPS572185A (en) 1980-06-05 1980-06-05 Color output circuit of color television picture receiver

Publications (1)

Publication Number Publication Date
JPS572185A true JPS572185A (en) 1982-01-07

Family

ID=13600568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7627180A Pending JPS572185A (en) 1980-06-05 1980-06-05 Color output circuit of color television picture receiver

Country Status (1)

Country Link
JP (1) JPS572185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0613307A1 (en) * 1993-02-16 1994-08-31 Thomson Consumer Electronics, Inc. Circuit for compensating the blue phosphor roll off at high drive levels in a projection television system
JP2008246332A (en) * 2007-03-29 2008-10-16 Kubota Corp Septic tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0613307A1 (en) * 1993-02-16 1994-08-31 Thomson Consumer Electronics, Inc. Circuit for compensating the blue phosphor roll off at high drive levels in a projection television system
JP2008246332A (en) * 2007-03-29 2008-10-16 Kubota Corp Septic tank

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