EP0189213A2 - Transformateur-ligne à enroulements séparés par diodes - Google Patents

Transformateur-ligne à enroulements séparés par diodes Download PDF

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Publication number
EP0189213A2
EP0189213A2 EP86100992A EP86100992A EP0189213A2 EP 0189213 A2 EP0189213 A2 EP 0189213A2 EP 86100992 A EP86100992 A EP 86100992A EP 86100992 A EP86100992 A EP 86100992A EP 0189213 A2 EP0189213 A2 EP 0189213A2
Authority
EP
European Patent Office
Prior art keywords
diode
resistor
winding
line transformer
split 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.)
Withdrawn
Application number
EP86100992A
Other languages
German (de)
English (en)
Other versions
EP0189213A3 (fr
Inventor
Erich Dr. Kettner
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.)
Nokia Deutschland GmbH
Original Assignee
Standard Elektrik Lorenz AG
Nokia Graetz GmbH
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 Standard Elektrik Lorenz AG, Nokia Graetz GmbH filed Critical Standard Elektrik Lorenz AG
Publication of EP0189213A2 publication Critical patent/EP0189213A2/fr
Publication of EP0189213A3 publication Critical patent/EP0189213A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

Definitions

  • the invention relates to a diode split line transformer according to the preamble of claim 1.
  • Such a diode split line transformer is known from DE-OS 31 22 589, in which the focusing filter capacitor is connected directly to the diode of the partial winding. It has been found that this filter capacitor has a disturbing influence due to its parallel connection to the winding capacitance by reducing the frequency of the desired harmonics.
  • the invention is based on the object of specifying a diode split line transformer in which the tuning of the high-voltage winding is improved.
  • the diode split line transformer has a primary winding A with the connections 1 0 and 12.
  • the terminal 12 of the primary winding A is connected to a switch of a line output stage, not shown, and the operating voltage U Batt is present at the terminal 10.
  • a capacitor K1 is also connected to ground from terminal 10.
  • An auxiliary winding B with connections 5 and 6 is arranged on the secondary side of the diode row transformer, which supplies an auxiliary voltage with a relatively low voltage value. Additional auxiliary windings can also be provided.
  • the high-voltage winding W on the secondary side is divided into three partial windings W1, W2 and W3.
  • the individual partial windings W1, W2 and W3 are connected to one another by diodes D1 and D2.
  • a further diode D3 is connected to the free connection of the partial winding W3 and the high voltage U h can be taken from its cathode.
  • the focusing filter capacitor K and three resistors of a resistor arrangement are connected via the resistor R.
  • the two external resistors are adjustable and the focusing voltage U fo or the screen grid voltage Ug 2 can be taken from their grinder.
  • the connection 8 of the high-voltage winding W connected to the partial winding W1 is connected to the ground potential.
  • Resistor R decouples the parallel connection of focusing filter capacitor K and resistor arrangement from the series connection from partial winding W1 and diode D1.
  • the resistance R has a value of approximately 300 to 400 kOhm. This decoupling enables a better tuning of the high-voltage winding W, and this results in a reduction in the internal resistance of the high-voltage source.
  • the better tuning of the high-voltage winding W is achieved by reducing the frequency-determining capacitance in the high-voltage winding.
  • the focusing voltage is better screened by the low-pass filter formed from the resistor R and the filter capacitor K.
  • the winding 2 shows the windings of the diode split line transformer, which are plugged into one another and then inserted into an insulating material housing (not shown).
  • the winding 2 is the primary winding A and the auxiliary winding B.
  • 3 denotes the bobbin having a number of winding chambers, on which the partial windings of the high-voltage winding W are wound.
  • the diodes D1 to D3 connected between the partial windings of the high-voltage winding W are arranged on the circumference of the coil former 3.
  • the resistor R is likewise arranged below the diode D1 on the circumference of the coil former 3, which is connected to the focusing filter capacitor K via an insulated line 4.
  • the resistor R can also be arranged on the substrate of the resistor arrangement.
  • resistor R can also be structurally combined with this bleeder resistor B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Dc-Dc Converters (AREA)
EP86100992A 1985-01-25 1986-01-24 Transformateur-ligne à enroulements séparés par diodes Withdrawn EP0189213A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853502371 DE3502371A1 (de) 1985-01-25 1985-01-25 Diodensplit-zeilentransformator
DE3502371 1985-01-25

Publications (2)

Publication Number Publication Date
EP0189213A2 true EP0189213A2 (fr) 1986-07-30
EP0189213A3 EP0189213A3 (fr) 1988-11-09

Family

ID=6260684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100992A Withdrawn EP0189213A3 (fr) 1985-01-25 1986-01-24 Transformateur-ligne à enroulements séparés par diodes

Country Status (6)

Country Link
EP (1) EP0189213A3 (fr)
AU (1) AU5221786A (fr)
DE (1) DE3502371A1 (fr)
DK (1) DK36586A (fr)
ES (1) ES8705733A1 (fr)
FI (1) FI860218A7 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291575A3 (en) * 1987-05-20 1989-06-07 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Horizontal deflection transformer
DE3902219A1 (de) * 1989-01-26 1990-08-02 Electronic Werke Deutschland Kammer-spulenkoerper fuer den hochspannungstransformator eines fernsehempfaengers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432718A (en) * 1967-10-19 1969-03-11 Rca Corp Television focus voltage supply
US3495126A (en) * 1968-05-22 1970-02-10 Rca Corp Voltage supply
JPS5482121A (en) * 1977-12-14 1979-06-30 Hitachi Ltd Direct current high voltage generator
DE3122589A1 (de) * 1981-06-06 1983-01-05 Standard Elektrik Lorenz Ag, 7000 Stuttgart Zeilentransformator fuer fernsehgeraete

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291575A3 (en) * 1987-05-20 1989-06-07 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Horizontal deflection transformer
DE3902219A1 (de) * 1989-01-26 1990-08-02 Electronic Werke Deutschland Kammer-spulenkoerper fuer den hochspannungstransformator eines fernsehempfaengers

Also Published As

Publication number Publication date
AU5221786A (en) 1986-07-31
DE3502371A1 (de) 1986-07-31
FI860218A0 (fi) 1986-01-17
ES551245A0 (es) 1987-05-01
FI860218L (fi) 1986-07-26
EP0189213A3 (fr) 1988-11-09
ES8705733A1 (es) 1987-05-01
DK36586A (da) 1986-07-26
DK36586D0 (da) 1986-01-24
FI860218A7 (fi) 1986-07-26

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Inventor name: KETTNER, ERICH, DR.