Apparatus for generating high voltage for cathode-ray tube
AssigneeHitachi, Ltd.
InventorsIsamu Kimura, Takumi Hayashi
Life of this patent
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Abstract
A high voltage generator suitably applied to the television receiver has a secondary winding divided into three or more units of different numbers of turns by a plurality of diodes. Each secondary winding unit has a different distance from the primary winding, so that the winding units are tuned to different high harmonics of the fifth or higher resonance orders, or some of the winding units to the same harmonic of fifth or high order and the remaining to harmonics.
Claims12
An apparatus for generating a high voltage for the cathode-ray tube comprising a primary winding, a secondary winding divided into a plurality of winding units by a plurality of diodes, and means for tuning said plurality of winding units to at least two high harmonics of different odd-numbered orders including the fifth-order harmonics and another high harmonics of a different order by differentiating the winding density distribution of said primary winding on the one hand and the number of turns of each of said winding units of said secondary winding on the other.
A high voltage generator for a cathode-ray tube of a television receiver comprising a primary winding, a secondary winding divided into a plurality of winding units by a plurality of diodes, and means for tuning at least one of said plurality of winding units to a resonance order of at least the fifth-order harmonic and tuning at least another of said plurality of winding units to an odd-numbered resonance order higher than said fifth-order harmonic, said means for tuning providing a different number of turns in each of said secondary winding units and adjusting the winding density distribution of said primary winding relative to said different number of turns.
Dependencies are inferred from the claim text.