H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 27/34 (2006.01) H01F 27/32 (2006.01)
Patent
CA 2320792
The present invention relates to a transformer comprising a coil having an insulated wire formed into a plurality of turns defining a layer and a resistive element wrapped around the outer surface of the layer. The resistive element couples one of the plurality of turns with another of the plurality of turns. The resistive element not only increases the series capacitance of the transformer, but also increases the series conductance of the transformer circuit. The increase in the series resistance increases the dampening of the switching resonance.
L'invention concerne un transformateur comprenant une bobine dotée d'un fil isolé se présentant sous la forme de plusieurs spires définissant une couche, et d'un élément résistif enveloppant la surface extérieure de la couche. L'élément résistif couple une des pluralités de spires avec une autre pluralité de spires. L'élément résistif n'augmente pas seulement la capacité en série du transformateur mais également la conductance en série du circuit de transformateur. L'augmentation de la résistance en série augmente l'amortissement de la résonance de commutation.
Hopkinson Philip J.
Rettew Richard R.
Fetherstonhaugh & Co.
Square D. Company
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