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beam switching frequency 射束开关频率
Hysteresis control has disadvantage of unstable switching frequency. 滞环控制方法存在开关频率变化不定的缺点。
The AD7730 also scales the ACX switching frequency in accordance with the output update rate. ad7730和ACX的整流频率比率也符合最新的输出校正频率。
LCL filter can reduce the switching frequency ripple of the three-phase pulsewidth modulation (PWM) rectifier. 摘要采用LCL滤波可以有效地减小PWM整流器开关频率及其倍数的高次谐波。
A constant 1.2 MHz switching frequency, with current-mode control scheme, provides stable low-noise operation at high load conditions. 恒定的1.;2 MHz开关频率及电流模式控制配置可确保高载荷条件下稳定的低噪音操作。
A high switching frequency is chosen to minimize the size of the passive filtering components, further assisting in cost reduction. 选择一个较高的开关频率,以最小化被动过滤元件的尺寸,进一步降低成本。
This paper also investigated the influence of the zero vector and PWM switching frequency on the acoustic noise radiated by induction machine. 选择适当的PWM开关频率能有效地降低电机的噪声·
To reduce the current harmonics around switching frequency of the three-phase pulse width modulation (PWM) rectifiers,an LCL filter has been adopted. 此外,文中对LCL滤波的三相PWM整流器数学模型进行了详细的分析,并从理论和仿真两方面证明了LCL滤波器的优越性能。
In high voltage and high power fields, multilevel inverter has significant advantages, such as less distorted output, lower switching frequency, etc. 在高压大容量应用场合,多电平逆变电路具有显着的优势,比如输出谐波少、开关频率低等。
The computer simulation and experimental results were demonstrated to verity the influence of PWM switching frequency on torque ripple. 通过仿真和实验验证了PWM开关频率对转矩脉动的影响，为减小转矩脉动和驱动系统的设计提供了理论依据。
We draw a conclusion that the induced eddy-currents under common gradient fields and switching frequency of several thousand Hz aren t strong... 人体在常用的梯度场和几千赫兹的切换频率下感应出的电流不足以引发心室震颤,但是,梯度场切换频率的提高可能会引发心室震颤。
It is analytically deduced that the switching frequency is inversely proportional to the number of the bridge to satisfy the same THD request. 通过分析得出：在满足相同谐波含量要求的情况下，开关频率与桥路数成反比。
magnetron type beam switching tube 磁控管型电子束开关管
To reduce the current harmonics around switching frequency of the three-phase pulsewidth modulation(PWM)rectifiers, a LCL filter is adopted. 为了减少PWM整流器开关频率附近高次谐波的含量,采用三次LCL滤波器。
Therefore, a LRC filter is designed and the harmonic of switch frequency is eliminated effectively. 为此设计了LRC滤波器,有效地抑制了输出电流中开关频率处的谐波成分。
Esemi-automatic headlamp beam switch 手动或自动前照灯远近光选择开关
To decrease direct serial number and switching frequency of electronic devices,and simplify the main circuit topology,a module-cascade based BTB HVDC-flexible system is proposed. 从降低电力电子器件直接串联数目、器件开关频率和简化主电路拓扑结构3个方面出发,提出一种基于模块级联的背靠背柔性直流输电结构。
She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
The SVM-DTC achieves the best performances and has constant switch frequency,but it uses more complex scheme and depends on motor parameters. SVM-DTC的性能最好,开关频率恒定,但它的结构较为复杂且依赖电机参数。