Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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27/00
Details of transformers or inductances, in general
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H01F27/34
Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
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H01F27/38
Auxiliary core members; Auxiliary coils or windings
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H01F27/385
for reducing harmonics
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