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The winding is made of two separate wires wound in opposing directions along an insulating form and connected in parallel at the ends. Since there are the same number of turns of wire in either direction, the magnetic fields of the two wires cancel each other out, so the coil has little inductance;
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One disadvantage is that because the two lengths of resistive wire are connected in parallel, four times the length of wire (twice the length for each coil) is needed to make a given resistance, compared to when a single coil is used.
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and since adjacent turns of the two wires are at approximately the same voltage, there is little parasitic capacitance between the turns.
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that are used at high frequencies, where inductance and capacitance are unwanted.
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47:. Its advantage is that the resulting coil of wire has low values of
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K. Padmanabhan, Electronic
Components, Laxmi Publications,
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40:pattern used in winding wire on forms to make
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134:This electronics-related article is a
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59:are used to make wirewound RF
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55:. Ayrton–Perry windings of
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185:Electromagnetic coils
53:parasitic capacitance
30:William Edward Ayrton
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49:parasitic inductance
26:Ayrton–Perry winding
20:Ayrton-Perry winding
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75:See also
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