| 摘要 |
A reduced noise power converter is provided with a transformer having primary, secondary, and auxiliary windings (22, 24, and 46). An electrostatic shield (26) having a shield termination (32) is disposed between the primary and secondary windings. The auxiliary winding has the opposite polarity of the primary winding, and is coupled between the shield termination and the input voltage source (12). By appropriate selection of the number of turns of the auxiliary winding, noise coupled from the primary side to the secondary side through the stray device capacitance (34) is neutralized.
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