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JPS5546639A - Video amplifier circuit - Google Patents

Video amplifier circuit

Info

Publication number
JPS5546639A
JPS5546639A JP11976478A JP11976478A JPS5546639A JP S5546639 A JPS5546639 A JP S5546639A JP 11976478 A JP11976478 A JP 11976478A JP 11976478 A JP11976478 A JP 11976478A JP S5546639 A JPS5546639 A JP S5546639A
Authority
JP
Japan
Prior art keywords
control electrode
signals
luminance signal
band component
delay line
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
JP11976478A
Other languages
Japanese (ja)
Inventor
Jiyouji Yoshioka
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 Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
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 Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP11976478A priority Critical patent/JPS5546639A/en
Publication of JPS5546639A publication Critical patent/JPS5546639A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To make it possible to obtain an excellent color picture by compensating the lowering of a high-band component of a video amplifier circuit, by providing a luminance signal amplifying transistor, parallel resonance circuit and delay line.
CONSTITUTION: The 1st control electrode of each electron gun of color CRT is applied with R, G and B signals. A parallel resonance circuit composed of earth capacity CX of the common-connected 2nd control electrode of each electron gun and inductance LX as a load on luminance signal amplifying transistor Q is tuned nearly to an upper-limit frequency of a video signal band, and its output high-band component is applied to the 2nd control electrode out of polarity with three primary color signals of the 1st control electrode group. In addition, signals applied to the 1st and 2nd control electrode groups are given a fixed phase difference through delay line DL2, thereby removing overshoots of three primary signals. As a result, the gradient of the raise of a CRT current can be compensated by the high-band component of the luminance signal.
COPYRIGHT: (C)1980,JPO&Japio
JP11976478A 1978-09-28 1978-09-28 Video amplifier circuit Pending JPS5546639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11976478A JPS5546639A (en) 1978-09-28 1978-09-28 Video amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11976478A JPS5546639A (en) 1978-09-28 1978-09-28 Video amplifier circuit

Publications (1)

Publication Number Publication Date
JPS5546639A true JPS5546639A (en) 1980-04-01

Family

ID=14769594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11976478A Pending JPS5546639A (en) 1978-09-28 1978-09-28 Video amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5546639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689663A (en) * 1985-09-27 1987-08-25 Rca Corporation Television receiver with display driver amplifier and input video filter having inversely related bandwidths

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689663A (en) * 1985-09-27 1987-08-25 Rca Corporation Television receiver with display driver amplifier and input video filter having inversely related bandwidths

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