摘要
开关电源广泛应用于各种电子设备中,其开关控制信号频谱分量丰富,谐波分量幅度较高,对电子设备中电子电路和与之相连的电网造成很大的干扰。频率抖动技术利用调频信号的频谱扩展将开关控制信号的能量均匀分布于较宽的频带范围内,有效地降低了谐波信号的幅度,减少了对电路的干扰。
Switching mode power supply is widely used in various electronic equipments,its switching control signal has rich spectrum component and high harmonic component,which causes great interference to electronic circuit and power network connected with it.The frequency modulation technology uses the spectrum expansion of the frequency modulation signal to distribute the energy of the switch control signal uniformly in a wide frequency band,which reduces the amplitude of the harmonic signal,eventually the interference to the circuit is reduced.
作者
王翠珍
丁国臣
邵红
杨晓霞
WANG Cuizhen;DING Guochen;SHAO Hong;YANG Xiaoxia(Qingdao Branch of Naval Aviation University,Qingdao 266041,China)
出处
《通信电源技术》
2021年第8期1-3,6,共4页
Telecom Power Technology
关键词
开关电源
开关信号
频谱分量
谐波
频率抖动
switching mode power supply
switching signal
spectrum component
harmonic
frequency modulation
