发明名称 |
Switching power supply capable of reducing low-frequency secondary-side common-mode voltage |
摘要 |
The invention discloses a switching power supply capable of reducing a low-frequency secondary-side common-mode voltage. The power supply mainly has two common-mode filtering circuit devices to prevent an AC voltage and an AC current from coupling to a secondary side of a transformer. Thus, the electrical safety and the quality in use of the associated electronic apparatus can be enhanced, a potential difference between the electronic apparatus and the ground may be greatly reduced, and an AC hum of a speaker coupled to an output of the power supply may be reduced or even eliminated.
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申请公布号 |
US7554825(B2) |
申请公布日期 |
2009.06.30 |
申请号 |
US20060607977 |
申请日期 |
2006.12.04 |
申请人 |
JENTEC TECHNOLOGY CO., LTD. |
发明人 |
CHUANG YUAN-CHENG;CHEN CHUN-TEH;LIN YING-CHIEH;SHIEH JENN-JONG |
分类号 |
H02M3/24 |
主分类号 |
H02M3/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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