随着开关电源在工业上的广泛应用并且成为主要的电源,电源功率密度不断增大,与此同时,导致电器设备故障的电磁干扰也在增加。例如:大功率的电动机可能影响附近固定电话的安装;使用电脑的同时不能同时使用收音机或电视。因为这些原因,现代的电器设备都需要满足规定的电磁兼容限值要求。实际应用中,通常使用EMC滤波器来解决射频干扰问题。常见的EMC滤波器包含电容和电感等元件。用软 With the switching power supply widely used in industry and becoming the main power source, the power density of the power supply is increasing, meanwhile, the electromagnetic interference that causes the electrical equipment failure also increases. For example: High-power motors may affect the installation of nearby fixed-line phones; you can not use both the radio and the television simultaneously with your computer. For these reasons, modern electrical equipment needs to meet specified electromagnetic compatibility limits. In practice, EMC filters are often used to solve radio frequency interference problems. Common EMC filters include components such as capacitors and inductors. With soft