公开(公告)号：US20090010032A1

公开(公告)日：2009-01-08

申请号：US12155854

申请日：2008-06-11

申请人： Weber Chuang ,  Charles Huang ,  Jack Lee ,  Jenn-Jong Shieh

发明人： Weber Chuang ,  Charles Huang ,  Jack Lee ,  Jenn-Jong Shieh

IPC分类号： H02M7/06

CPC分类号： H02M1/14 ,  H02M1/44 ,  H02M3/335

摘要： A switching power supply capable of reducing secondary-side noise mainly has at least one decoupling device for guiding the secondary-side noise to at least a terminal of an AC power supply. Thus, the secondary-side high-frequency noise can be reduced, and the quality in using the electronic apparatus product, which is electrically connected to the output of the switching AC-to-DC power supply, can be greatly enhanced.

摘要翻译： 能够减少二次侧噪声的开关电源主要具有至少一个去耦装置，用于将次级侧噪声引导至交流电源的至少一端。 因此，可以降低二次侧高频噪声，并且可以大大提高与电源连接到开关AC-DC电源的输出的使用电子设备产品的质量。

公开(公告)号：US07554825B2

公开(公告)日：2009-06-30

申请号：US11607977

申请日：2006-12-04

申请人： Yuan-Cheng Chuang ,  Chun-Teh Chen ,  Ying-Chieh Lin ,  Jenn-Jong Shieh

发明人： Yuan-Cheng Chuang ,  Chun-Teh Chen ,  Ying-Chieh Lin ,  Jenn-Jong Shieh

IPC分类号： H02M3/24

CPC分类号： H02M3/335 ,  Y10T307/544

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.

摘要翻译： 本发明公开了一种能够降低低频二次侧共模电压的开关电源。 电源主要具有两个共模滤波电路装置，以防止交流电压和交流电流耦合到变压器的次级侧。 因此，可以增强电子安全性和相关联的电子设备的使用质量，电子设备和地面之间的电位差可以大大降低，并且耦合到电源的输出端的扬声器的AC嗡嗡声可以 减少甚至消除。

公开(公告)号：US20070127275A1

公开(公告)日：2007-06-07

申请号：US11607977

申请日：2006-12-04

申请人： Yuan-Cheng Chuang ,  Chun-Teh Chen ,  Ying-Chieh Lin ,  Jenn-Jong Shieh

发明人： Yuan-Cheng Chuang ,  Chun-Teh Chen ,  Ying-Chieh Lin ,  Jenn-Jong Shieh

IPC分类号： H02M1/12

CPC分类号： H02M3/335 ,  Y10T307/544

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.

摘要翻译： 本发明公开了一种能够降低低频二次侧共模电压的开关电源。 电源主要具有两个共模滤波电路装置，以防止交流电压和交流电流耦合到变压器的次级侧。 因此，可以增强电子安全性和相关联的电子设备的使用质量，电子设备和地面之间的电位差可以大大降低，并且耦合到电源的输出端的扬声器的AC嗡嗡声可以 减少甚至消除。