当这些线圈被调节到合适的操作频率，电流就可以通过一个开关控制器转换给这些线圈。
The coils all get tuned to the right operating frequency and electricity is transferred to them using a switch-mode controller.
在这个例子里，你必须以和中子星，旋转相同的频率，对其进行开关。
In this case, you have to open and close it with exactly the same frequency as the rotation of the neutron star.
该文系统地讨论二极管工作在开关特性下所组成电路的频率变换的工作原理。
This paper tries to discuss the work principle of frequency transformation on the circuit where diodes work on on-off speciality.
首先就是开关频率。
继电器往往会以开关时间规定一个重复率，或者说是工作频率，使用时需低于该值。
A repetition rate, or operating frequency, lower than that allowed by the switching times is often specified for a relay.
文中提出了一种新型的开关频率固定的转矩控制器。
In this paper a new torque controller with fixed switching frequency is proposed.
发现在二维耦合腔结构中，可以实现信号自泵浦和泵浦-信号两种类型的双稳态开关，且后者具有使泵浦和信号在频率和空间相分离的优点。
It shows that the self-pumping type and pump-probe types bistable switching can both be realized in the same structure, and the latter can separate the pump and signal in frequency and space.
该电路具有既能将负载电流限制在设定值以内，又能控制限流工作时功率管的开关频率等特点。
This circuit has both characters of restricting the current within the giving value and limiting the switching frequency of MOSFET operating on current limited condition.
主要研究适用于高开关频率变频器驱动的感应电动机数学模型。
Inductive motor mathematics model suitable for high switching frequency inverter drive is described in this paper.
保证过电流保护的同时，还提高了开关频率，减小了输出谐波。
The switch frequency is increased and the output harmonic is decreased while the overcurrent protection is ensured.
它具有开关频率恒定，转矩和磁链波动小等特点。
It features in low torque ripple, low flux ripple and fixed switching frequency.
仿真和实验结果证实了该逆变器具有开关频率固定，输出电压波形质量好，非线性负载适应能力强等优点。
The simulation and experimental results illustrate advantages of the inverter:fixed switching frequency, high output-voltage performance, and strong nonlinear load adaptability, etc.
选择了合适的逆变频率，降低IGBT模块的开关损耗。
Through choosing suitable frequency of inverter, switching losses of domestic IGBT modules are reduced.
该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。
It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.
在这些情况下，可向开关加入滤波器来改变信号的频率带宽，或者从发射到DUT的信号中消除有害频率的杂散信号。
In these cases, filters can be added to the switch to modify the signal frequency bandwidth, or spurious signals at unwanted fre quencies can be eliminated from the signal to the DUT.
提出了基于载波组合相移技术的电流型电力有源滤波器，在较低的开关频率下实现了等效的高频载波效果。
With this technique, the effect of equivalent high switching frequency converter has been obtained with low switching frequency converter.
该装置采用多重化技术，成功的解决了容量和开关频率的矛盾。
With the multiplex technology, the contradiction between device capacity and switching frequency is solved successfully.
但其存在浮动电容器的电压失配问题，尤其在低开关频率时尤为显著。
But the unbalance of the floating capacitor voltage can be a problem, especially at low switching frequencies.
在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。
The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.
采用滞环比较器的直接功率控制系统的开关频率不固定，是实用化过程中需要解决的一个技术问题。
The switch frequency of the direct power control system using hysteresis comparator is not fixed, which is a technical issue in practical needing be solved.
同时，高速交流传动机车广泛采用高开关频率器件的脉宽调制（PWM）逆变器，使得逆变器输出脉冲具有陡上升沿。
Meanwhile, PWM inverters using high switching frequency device that shortens the rise time of PWM output pulse have been widely applied in high-speed AC driving locomotive.
对空间电压矢量方法进行了改进，在不改变系统输出特性的前提下，使开关频率降低了50%。
Maintaining the output character of the system, the voltage space vector control was improved which made the switching frequency decrease 50%.
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。
In high voltage and high power fields, multilevel inverter has significant advantages, such as less distorted output, lower switching frequency, etc.
分析表明，采用合适电容值的低等效寄生电阻的滤波电容，并提高开关频率，可减小输出电压跌落。
The analyses show that using a low equivalent series resistance (ESR) capacitor with a carefully determined value and raising switching frequency can decrease output voltage fall.
提出一种新颖的开关频率优化配置的PWM控制方案。
An optimized switching frequency PWM control strategy is presented in this paper.
它具有大电流、高电压、开关频率高、高可靠性、结构紧凑、低损耗的特点。
It has characteristics of large current, high power, high voltage, high switch frequency, proven reliability, low losses and so on.
利用变量分离法推导出桥模式RFMEMS开关的频率方程组。
The frequency equation of RF MEMS switches was derived by separation of variable.
传统的直接转矩控制存在着转矩脉动大，低速性能差、开关频率不固定等问题。
The traditional direct torque control system has existed large torque fluctuation, poor performance of low speed region, inconstant switch frequency, etc.
传统的直接转矩控制存在着转矩脉动大，低速性能差、开关频率不固定等问题。
The traditional direct torque control system has existed large torque fluctuation, poor performance of low speed region, inconstant switch frequency, etc.
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