Apparatus and method for fabricating a low voltage winding for a toroidal transformer
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United States of America Patent
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Sep 20, 1988
Issued Date -
N/A
app pub date -
May 6, 1987
filing date -
Feb 6, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A winding apparatus and method for fabricating a multifilar low voltage winding for a toroidal transformer is disclosed. The method and apparatus use a wire storage magazine (18) and a wire winding shuttle (20) which rotate about a semitoroidal winding mandrel (38) to wind a multifilar low voltage winding (48) on the winding mandrel having a greater radial depth of turns at the radially inward leg of the winding than at the radially outward leg of the winding. The multifilar winding can be wound with a group of conductors in a single pass over the winding mandrel, or wound one conductor at a time using multiple passes over the winding mandrel, or wound using multiple passes over the winding mandrel with some intermediate number of conductors being wound during each pass.
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