| 摘要 |
A noise reduction circuit for AC power, AC power neutral lines, and DC power. In a first embodiment for use with AC power, the invention operates by subtracting the error voltage from an incoming AC signal boosted in voltage by a small boost transformer. In a second embodiment, the present invention reduces noise in AC power neutral lines by effectively operating as a power corrector and reduces unwanted noise on the neutral line at all frequencies without introducing unwanted current in the ground line. In a third embodiment, the invention reduces noise in DC power supplies.
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