The design eliminates the use of the large-valued filter capacitors you usually find in a switching regulator, because there is no need to smooth out high-frequency ripple in the LED current.
这种设计去除了通常在开关电源附近的大滤波电容，因为没有必要对LED电流的高频谐波进行平滑处理。
It features in low torque ripple, low flux ripple and fixed switching frequency.
它具有开关频率恒定，转矩和磁链波动小等特点。
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。
With electrode thickness increases, passband ripple becomes smaller, center frequency moves toward lower frequency.
当电极厚度增加时，通带的涟波会变小，中心频率会降低。
It has been shown that the designed DC switching mode converter has a stable output voltage frequency, small ripple, high operating frequency and low power consumption.
结果表明，所设计的直流开关型变换器集成模块输出电压稳定、纹波小、工作频率，高、功耗低，且体积小。
The results indicate that the proposed controller is capable of maintaining the torque switching frequency constant and reducing the torque ripple, particularly at low speed.
结果表明提出的控制器可以保持开关频率恒定，并降低了转矩脉动，尤其在低速时。
A hydraulic pump is considered as a pressure and flow ripple source for the hydraulic system, and its mathematical model in frequency domain is studied.
本文对液压系统中的流量压力脉动源一液压泵的频域数学模型作了研究。
Have high frequency and high ripple current characteristics.
具耐高频率及高纹波电流之特性。
The simulation results show that the improved control system significantly reduces the torque ripple, current ripple and effectively decreases the inverter switching frequency.
仿真结果表明：改进后系统使逆变器开关频率减小，损耗降低，转矩有明显的改善。
Synchronous rectification produces a ripple frequency twice that of the excitation frequency and thus is easier to remove with a lowpass filter.
同步稳压产生两倍激励频率纹波频率，因此更容易被低通滤波器去除。
The high frequency noise contains current ripple noise and thermal noise.
高频噪声包括电流纹波与热噪声。
The high turn-on frequency permission selects the small superficial ceramics electric capacity, may save the board level area, reduce the cost and to reduce the output voltage ripple.
高的开关频率允许选用小的表面瓷陶电容，可节省板级面积、降低成本和减小输出电压纹波。
At present power converters of DC driving system make power supply outputs a high-frequency pulsating current, which is from zero to the armature current. This large ripple damages batteries.
目前国内外电动车直流驱动功率变换器使储能电源输出电流从零到电机电枢电流高频脉动，不利于延长动力电池的使用寿命。
Small loss at high frequency, high ripple current. Used in s correction of horizontal deflection current in TVs.
高频低损耗，高纹波电流。适用于电视机水平偏转电流校正电路。
Finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3k is to be adopted, as it is used in SPWM.
文中还提出了抑制谐波电流和脉动转矩的方法，如在SPWM生成中，采用较大的3的整数倍调制比。
Fixed switching frequency and low torque ripple are obtained using space vector modulation.
使用空间矢量调制固定开关频率和低转矩脉动。
Advantages are: high frequency and low impedance, good heat endurance, high withstand voltage, impulsion resistance of high ripple current, and long service life etc.
本发明所得电解液可使铝电解电容器获得高频低阻抗、耐热性好、耐压高、耐高纹波电流冲击、长寿命等优点。
Advantages are: high frequency and low impedance, good heat endurance, high withstand voltage, impulsion resistance of high ripple current, and long service life etc.
本发明所得电解液可使铝电解电容器获得高频低阻抗、耐热性好、耐压高、耐高纹波电流冲击、长寿命等优点。
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