JPS57129592A - Waveform varying circuit - Google Patents

Waveform varying circuit

Info

Publication number
JPS57129592A
JPS57129592A JP1606781A JP1606781A JPS57129592A JP S57129592 A JPS57129592 A JP S57129592A JP 1606781 A JP1606781 A JP 1606781A JP 1606781 A JP1606781 A JP 1606781A JP S57129592 A JPS57129592 A JP S57129592A
Authority
JP
Japan
Prior art keywords
diode
inverted input
input terminal
terminal
variable resistor
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
JP1606781A
Other languages
Japanese (ja)
Inventor
Manabu Suzuki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP1606781A priority Critical patent/JPS57129592A/en
Publication of JPS57129592A publication Critical patent/JPS57129592A/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
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/28—Arrangements for convergence or focusing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To obtain a waveform which is free from distortion, by connecting the joints of two diodes which are connected in the forward direction and in series to the output terminal of an operational amplifier and forming a feedback circuit at an inverted input terminal of the operational amplifier with the other terminal of each diode via a variable resistor. CONSTITUTION:The cathode of a diode 2a is conected to an inverted input terminal of an operational amplifier 1 via a variable resistor 3a. While the anode of the diode 2a is connected to an output terminal of the amplifier 1. At the same time, the cathode of a diode 2b is connected to the output terminal of the amplifier 1, and the anode is connected to the above-mentioned inverted input terminal via a variable resistor 3b. Then an input AC voltage is applied to the inverted input terminal along with the application of the AV voltage obtained by attenuating the input AC voltage. As a result, a converted waveform containing no distortion is obtained at the center point between the diodes 2a and 2b.
JP1606781A 1981-02-05 1981-02-05 Waveform varying circuit Pending JPS57129592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1606781A JPS57129592A (en) 1981-02-05 1981-02-05 Waveform varying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1606781A JPS57129592A (en) 1981-02-05 1981-02-05 Waveform varying circuit

Publications (1)

Publication Number Publication Date
JPS57129592A true JPS57129592A (en) 1982-08-11

Family

ID=11906218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1606781A Pending JPS57129592A (en) 1981-02-05 1981-02-05 Waveform varying circuit

Country Status (1)

Country Link
JP (1) JPS57129592A (en)

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