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- switching frequency modulation 开关频率调制
- 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。
- 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。
- 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。
- The paper presents the effectiveness of EMI suppression of switching converters with a chaotic frequency modulation scheme (CFMS). 探讨了混沌频率调制技术在开关变换器中抑制电磁干扰的实际效果。
- Frequency modulation does not allow static to creep in. 频率调制不允许静电干扰混入。
- Switching Power Supply has three kinds of control circuits: Pulse Width Modulation (PWM), Pulse Frequency Modulation (PFM), Pulse Width and Frequency Modulation (PWM-PFM). 开关电源有三种控制方式：脉冲宽度调制(PWM)、脉冲频率调制(PFM)、脉冲宽度频率调制(PWM-PFM)。
- Frequency modulation is not possible with polychromatic light. 多色光不可能调制频率。
- The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency. 以空间矢量调制方法来获得逆变器的开关信号，实现了小的转矩脉动和恒定的开关频率。
- 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 figure below illustrates a simple frequency modulation architecture. 下面的图表列举了一个简单的调频结构体系。
- When variable structure control (VSC) theory is used to design the pulse-width modulation (PWM) control system, the main problem is that the switching frequency of the VSC is inconsistent. 摘要用变结构控制(VSC)理论设计脉宽调制(PWM)控制系统时，存在的主要困难是VSC的开关频率不恒定。
- 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。
- A method of representing data in magnetizable surface storage; for example,"modified frequency modulation". 在磁表面存储技术中一种表示数据的方法，例如改进型调频制。
- A large proton synchrotron,uses frequency modulation of an electric field to accelerate protons. 一种大的质子同步加速器,用电域的调频加速质子。
- 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。
- A method of representing data in magnetizable surface storage;for example, " modified frequency modulation" . 在磁表面存储技术中一种表示数据的方法，例如改进型调频制。
- 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·
- American engineer and inventor whose improvements to radio communication included the development of frequency modulation(1933). 阿姆斯壮，奈尔·奥尔登生于1930美国宇航员，他森身为阿波罗11号指挥官，成为第一个登上月球的人（1969年7月20日）
