发明名称 POWER SUPPLY APPARATUS AND ELECTRONIC DEVICE HAVING THE POWER SUPPLY APPARATUS
摘要 A power supply to improve an EMI characteristic and an electronic device having the power supply. The power supply includes a power converter to convert an alternating current (AC) power applied from outside to a direct current (DC) power, a ground portion to supply a ground power to the power converter and a noise attenuator to reduce noise by blocking a harmonic current generated by a driving of the power converter from passing through the ground portion. Accordingly, the stable ground power can be supplied to the internal elements by avoiding the potential change of the ground power and the noise caused by the flow of the harmonic current can be reduced by shortening the harmonic current path. Therefore, the EMI characteristic can be improved.
申请公布号 US2011013430(A1) 申请公布日期 2011.01.20
申请号 US20100889677 申请日期 2010.09.24
申请人 SAMSUNG ELECTRONICS CO., LTD 发明人 LEE SEUNG-HAK
分类号 H02M1/12 主分类号 H02M1/12
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