JPS55123274A - Fly-back transformer - Google Patents

Fly-back transformer

Info

Publication number
JPS55123274A
JPS55123274A JP3001879A JP3001879A JPS55123274A JP S55123274 A JPS55123274 A JP S55123274A JP 3001879 A JP3001879 A JP 3001879A JP 3001879 A JP3001879 A JP 3001879A JP S55123274 A JPS55123274 A JP S55123274A
Authority
JP
Japan
Prior art keywords
winding
focus
tension coil
coil
waveform
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
JP3001879A
Other languages
Japanese (ja)
Inventor
Kozo Sato
Kazuo Fujita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3001879A priority Critical patent/JPS55123274A/en
Publication of JPS55123274A publication Critical patent/JPS55123274A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE:To obtain a miniature, lightweight and low-priced transformer with excellent focus tranking characteristics by obtaining a focus voltage from an output part by providing an auxiliary focusing winding to the cathode of a diode connected to a halfway point of a high-tension coil. CONSTITUTION:In addition to 2nd high-tension coil 3-2, one terminal of auxiliary focus winding 7 is connected to lead wire C, the cathode of diode 4-1, and to the other terminal N', focus resistance 5-4 and 5-5 are connected so as to obtain focus voltage EF from a random point of resistances 5-4 and 5-5. Next, voltage waveforms of respective lead wires A-G are shown by VA-VG and the optimum winding value of winding 7 depends upon the state of waveform VC, but when the number of winding of coil 3-2 is one-third to three times those of 1st high-tension coil 3-1 and 3rd high-tension coil 3-3, it is 10-30% of the number of winding of coil 3-2. Then, waveform Vc shows pulses dropping extremely when fly-back pulse VCP is generated, but winding 7 corrects this dropping pulse into a flat voltage as shown by waveform VN'.
JP3001879A 1979-03-16 1979-03-16 Fly-back transformer Pending JPS55123274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3001879A JPS55123274A (en) 1979-03-16 1979-03-16 Fly-back transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3001879A JPS55123274A (en) 1979-03-16 1979-03-16 Fly-back transformer

Publications (1)

Publication Number Publication Date
JPS55123274A true JPS55123274A (en) 1980-09-22

Family

ID=12292097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3001879A Pending JPS55123274A (en) 1979-03-16 1979-03-16 Fly-back transformer

Country Status (1)

Country Link
JP (1) JPS55123274A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05227753A (en) * 1992-02-17 1993-09-03 Mitsubishi Electric Corp Flyback transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05227753A (en) * 1992-02-17 1993-09-03 Mitsubishi Electric Corp Flyback transformer

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