Flyback transformer
AssigneeMurata Manufacturing Co., Ltd.
InventorsKenji Naito, Hisashi Takiguchi, Masaru Omura, Tadao Nagai, Masahiko Kitamoto, Tsuyoshi Umemoto
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Abstract
The number of layers of a secondary winding of a flyback transformer for use in a PWM controlled high-tension voltage generator is increased to six or higher. The distributed capacitance of the flyback transformer is thus decreased, the frequency of ringing is increased, and the pulse width of a flyback pulse is narrowed. The timing of the on-operation of a control FET is expedited, and the input current to the flyback transformer is lowered. A compact and power-saving flyback transformer thus results.
Claims16
A flyback transformer for use in a PWM controlled high voltage generator circuit, comprising a primary and a secondary winding, the secondary winding comprising a layer-wound secondary winding having a number of layers equal to or larger than six.
A method of making a flyback transformer for use in a PWM controlled high voltage generator circuit comprising providing a primary winding and a secondary winding, and forming the secondary winding in a plurality of wound layers wherein the number of layers is equal to or larger than 6.
Dependencies are inferred from the claim text.