Leakage current suppression circuit and AC-to-DC power supply incorporating the same
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United States of America Patent
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Mar 27, 2018
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app pub date -
Jan 5, 2016
filing date -
Apr 24, 2015
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Abstract
A leakage current suppression circuit is adapted for use with an AC-to-DC power supply that includes a bridge rectifier converting an AC input voltage into a DC voltage and outputting the DC voltage through a first output terminal and a grounded second output terminal thereof, a DC-to-DC converter converting the DC voltage into a predetermined DC output voltage and outputting the DC output voltage through a first output end and a grounded second output end thereof, and a capacitor coupled to the second output terminal of the bridge rectifier at one terminal thereof. The leakage current suppression circuit includes a first impedance unit and a second impedance unit each coupled in parallel between the other terminal of the capacitor and ground.
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