电源噪声 meaning in English
power supply noise
Examples
- Using an lc circuit as a power supply filter can actually multiply the power supply noise at the filter " s resonant frequency . use inductor with low q to overcome this
使用lc电路作为电源滤波器能精确地在滤波器的谐振频率点处乘以电源噪声，使用低q电感来应对。 - Rc oscillator ’ s frequency is 1khz . the voltage reference of ic is 2 . 2v , which can keep stabilization when the power supply is bigger than 2 . 3v . in that case circuits can insulate yawp from power supply
在稳压源电路设计中,采用了运算放大器负反馈的形式,使参考电压源为2 . 2v ,并在电源大于2 . 3v时保持稳定,隔离了电源噪声。 - Firstly , the current testing localization in the detection of electric bow is analyzed and the new system ' s whole construction developed in this thesis is introduced ; in the 2rd chapter , the embedded 110v dc power supply is analyzed and constructed , and with experiments , some dissonant results such as the fluctuation of output pwm ( pulse width modulation ) pulses , the power noise added to output voltage , and the drop of output voltage have been analyzed and the problems have been broken down one by one ; in chapter 3 , stepping motor ' s drive has been systematically dissertated , and combing stepping motor ' s subdivided drive technology , the author develops an intelligent mini - step driving circuit using a main - sub microprocessor structure , which is validated in the hybrid stepper based system ; in the 4th chapter , liquid crystal driving and displaying technology is specified in detail , with one sort of lcd modules ( tlm12864h ) , the author develops an feasible circuit for the new testing system , designs a menu mode based program struc ture and brings here some programming codes using franklin c51 programming language ; in chapter 5 , the above built system is used in the electric bow ' s practical detection , and the differentiating rate of this system is analyzed
论文首先分析了目前机车受电弓检修方式存在的局限并概述了本论文研制的受电弓测试系统的体系架构；第二章对系统内置110v直流控制电源进行了分析和设计，结合试验对输出pwm振荡、输出电源噪声大、输出电压下跌等现象进行了分析并提出解决措施；第三章论述了步进电机的驱动，结合步进电机微步驱动技术研制了基于上下位单片机组的混合式步进电机智能驱动电路，并在试验中得以验证；第四章详述了液晶驱动及显示技术，利用一款液晶显示模块tlm12864h研制出本系统用液晶显示电路，设计了菜单式的程序结构并以franklinc51编程方式给出部分子程序代码；第五章则将以上构建的整个系统应用在机车受电弓的实测中，并对测试分辨率进行了分析。 - A kind way of current sharing composed of the droop method and the master - slaver method based on thermal stress and the random of the master is given , in this system an extra controller is attached ; all the software and hardware on can fieldbus communication part have accomplished , which guaranteed the communication of the charger high reliability and high real - time . the source and types of the noise from switching power are analyzed and some methods are introduced to restrain noise and strengthen the system performance of interference rejection
提出了一种外加控制器基于热应力均流的主从可转换均流方法；对系统中can总线通信部分的软硬件进行了设计，保证了系统通信的实时性和可靠性；对开关电源噪声来源与种类进行了分析，介绍了一些抑制噪声和增强系统抗干扰性能的措施。