Pincushion correction transformer
First Claim
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1. A pincushion correction transformer comprising:
- an E core having a central leg and first and second outer legs, all of said legs being connected in magnetic circuit at their ends only by first and second core segments to define a two window magnetic core;
a first winding on said first leg;
a second winding on said first leg connected to said first winding in equal and opposite phase to provide a vertical correction winding;
first and second electrical terminals coupled to said interconnected first and second windings;
a third winding around said central leg and serving as a control winding for said transformer;
third and fourth electrical terminals coupled to said third winding;
a fourth winding around said second outer leg serving as a horizontal correction winding;
fifth and sixth electrical terminals connected to said fourth winding.
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Abstract
For use in the deflection circuitry of a cathode ray tube, such as with a television receiver picture tube, a single pincushion correction transformer providing both vertical and horizontal correction. The transformer includes an E core having a control winding provided around the central leg, a horizontal correction winding provided on one outer leg and a pair of phase opposed windings on the other leg to minimize cross modulation and sensitivity to stray magnetic fields.
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Citations
10 Claims
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1. A pincushion correction transformer comprising:
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an E core having a central leg and first and second outer legs, all of said legs being connected in magnetic circuit at their ends only by first and second core segments to define a two window magnetic core; a first winding on said first leg; a second winding on said first leg connected to said first winding in equal and opposite phase to provide a vertical correction winding; first and second electrical terminals coupled to said interconnected first and second windings; a third winding around said central leg and serving as a control winding for said transformer; third and fourth electrical terminals coupled to said third winding; a fourth winding around said second outer leg serving as a horizontal correction winding; fifth and sixth electrical terminals connected to said fourth winding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification