公开(公告)号：US20130320950A1

公开(公告)日：2013-12-05

申请号：US13612520

申请日：2012-09-12

申请人： Hong-Yuan JIN ,  Jia-Le DAI ,  Hong-Jian GAN ,  Jian-Ping YING

发明人： Hong-Yuan JIN ,  Jia-Le DAI ,  Hong-Jian GAN ,  Jian-Ping YING

IPC分类号： H02M1/14

CPC分类号： H02M1/44 ,  H02M1/15 ,  H02M2001/0035 ,  Y02B70/16

摘要： A control method for reducing audio noise is disclosed. The method includes the steps of: providing an input power source; providing a power source converter having a component with a mechanical resonant frequency, coupled to the input terminal or the output terminal of the power source converter; providing an output capacitor and a load connected in parallel therebetween; making the power source converter operate in a burst mode; and controlling the electrical energy transferred from the input terminal to the output terminal of the power source converter during an operating period of every burst cycle, so as to reduce the audio noise of the power source converter.

摘要翻译： 公开了一种用于降低音频噪声的控制方法。 该方法包括以下步骤：提供输入电源; 提供具有耦合到所述电源转换器的输入端子或输出端子的具有机械谐振频率的部件的电源转换器; 提供输出电容器和并联连接的负载; 使电源转换器以突发模式工作; 并且在每个脉冲串周期的操作期间控制从输入端子传递到电源转换器的输出端子的电能，以便降低电源转换器的音频噪声。