下变换器 meaning in English

down-converter

Chaotic switching signal obtained from chua ' s circuit was used to control buck dc / dc converter . by compared the power spectrum of input current between chaotic modulations and classical pwm , it demonstrate that chaotic switching modulations have good effect on spreading power spectrum , which can be used to reduce the level of emi and to improve emc of smps
通过对四种混沌调制模式下变换器输入电流与周期pwm模式下输入电流频谱的分析比较表明，混沌调制技术在扩展频谱方面有良好的效果，可以用于降低开关模式电源的电磁干扰( emi )水平，改善电磁兼容性( emc ) 。
Based on the analysis and comparison of the peak current - injection mode and average current mode control strategies , the method of designing average current control mode pi regulator is obtained . the digital simulation of the converter has been done with the help of matlab software . the good transient and stable character of the converter is attained while rated load
在分析与比较峰值电流模式与平均值电流模式控制策略的基础上，给出平均值电流模式pi调节器的设计方法，利用matlab软件对变换器进行了数字仿真，证实了变换器在额定功率范围内动、静态特性良好；过载情况下变换器具有自动限流、保护主功率器件的特性。