找到约 5684 条相关结果
... 。Performance improvement of Pulse Width Modulation （PWM） rectifier brings about a complicated structure, which ... signal. Finally, the three-phase three-level 380V PWM rectifier is utilized as an example, fault inj...
... 的结构及其工作原理,分析了电流PWM像素驱动电路对OLED像素 ... on the OLED micro display in the current PWM pixel driving circuit. In the paper, a brief ...
... and effectiveness of the new type constant frequency PWM generation circuit. The circuit has certain applicability to ...
... 各个电力半导体器件的通断进行PWM调制，使输入电流成为接近正弦且与电源电压同相的PWM波形，从而得到接近1的功率因数 ... 主要对电压型三相半桥式PWM整流电路进行分析，在此基础上对PWM整流技术加以探讨，对PWM整流装置的维护和 ...
... This paper introduces the research status quo of PWM rectifier and research purpose and meaning.With three ... the main circuit of three-phase voltage source PWM rectifier topology structure,expounds its basic working principle ...
... 的方法。通过产生一定频率的PWM信号,在不改变频率的前提下 ... . By generating a certain frequency PWM signal, the duty ratio of PWM wave was regulated without changing the ...
... PCA）模块编程实现了变周期PWM信号的产生，通过达林顿晶体管阵列 ... based on C8051F340 single chip microcomputer. Variable period PWM signal is generated by programmed PCA module and ...
... to measure the input signal, we can get PWM signal by processing that is amplification, rectifier and ... transforming circuit using pulse width modu- lation （PWM） function, microprocessor can calculated the input analog ...
... 污染。上世纪90年代出现的PWM整流器以脉宽调制为其基础 ... 应用在国民经济的各个领域。根据PWM系统的四象限运行特点发现，在PWM整流情况下，只要交流侧电源 ... 研究了如下内容：首先建立了PWM整流侧系统的数学模型，引入 ... 滑模控制的新算法。使用PWM整流技术来设计有源电力滤波器 ...
... 问题，本文介绍了三相电压型PWM整流器LCL滤波器的设计原理，分析了LCL滤波器参数对三相电压型PWM整流器电网侧电流总的谐波畸变系数 ... ，出现了以脉宽调制（PWM）控制为基础的各类变流器， ... 变流装置，而三相电压型PWM整流器（三相VSR）能够同时控制 ...
