JPS548922A - Gain control circuit for chroma signal - Google Patents

Gain control circuit for chroma signal

Info

Publication number
JPS548922A
JPS548922A JP7517377A JP7517377A JPS548922A JP S548922 A JPS548922 A JP S548922A JP 7517377 A JP7517377 A JP 7517377A JP 7517377 A JP7517377 A JP 7517377A JP S548922 A JPS548922 A JP S548922A
Authority
JP
Japan
Prior art keywords
chroma signal
control circuit
gain control
differential amplifier
picking
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
JP7517377A
Other languages
Japanese (ja)
Inventor
Yasuta Tomuro
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 JP7517377A priority Critical patent/JPS548922A/en
Publication of JPS548922A publication Critical patent/JPS548922A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To stabilize the DC voltage level of the chroma signal, by commonly picking up the collector output of the first Tr of the second differential amplifier and the second transistor Tr of the first differential amplifier, and by connecting it to the power supply via the load resistor.
COPYRIGHT: (C)1979,JPO&Japio
JP7517377A 1977-06-23 1977-06-23 Gain control circuit for chroma signal Pending JPS548922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7517377A JPS548922A (en) 1977-06-23 1977-06-23 Gain control circuit for chroma signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7517377A JPS548922A (en) 1977-06-23 1977-06-23 Gain control circuit for chroma signal

Publications (1)

Publication Number Publication Date
JPS548922A true JPS548922A (en) 1979-01-23

Family

ID=13568535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7517377A Pending JPS548922A (en) 1977-06-23 1977-06-23 Gain control circuit for chroma signal

Country Status (1)

Country Link
JP (1) JPS548922A (en)

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