变换器

Under direction of the theory,mixed series一parallel type resonant converter' s small signal...

在这一理论指导下，推导出混合串并联型谐振变换器小信号电路模型。

With development of power electronic technology, power converters have been used widely in switching power supply, motor-driven an...

随着电力电子技术的发展，功率变换器在开关电源、电机驱动控制、电网的无功补偿和谐波治理等领域得到广泛的应用。

With development of power electronic technology, power converters have been used widely in switching power supply, motor-driven and controlled, compensate of transmission-line system of electric power and harmonious wave manage.

随着电力电子技术的发展，功率变换器在开关电源、电机驱动控制、电网的无功补偿和谐波治理等领域得到广泛的应用。

MPT control technique is easy to realize, with great robust ness and good transient performance.

MPT控制方法易于实现，控制系统具有良好的瞬态特性和鲁棒性，可以应用于各种拓扑结构的开关变换器。

The principle and implementation of the control technique are introduced, and the operation, characteristics and small-signal model of MPT controlled buck converter are also studied.

介绍了MPT控制方法的原理和实现方式，详细阐述了MPT控制Buck变换器的工作特性、控制规律和小信号模型，并进行了分析对比、仿真和实验研究。

Then, the multiple reflection viewpoint is used in nonreciprocal transmission lines, so the theory of small reflections for nonreciprocal trans mission lines is studied in a different way, the accuracy of the theory of small reflections is also verified, which can provide a theoretical basis for designing multi-section transformer.

将多次反射观点应用于非互易传输线，从而用不同的方法对非互易传输线的小反射理论进行了研究，并进一步对小反射理论的准确性进行了验证，从而为多节变换器的设计提供理论依据。

Some design guide lines are discussed based on the structure of the system. The mutual inductance coupling model of the system is introduced. The circuit impedance is analyzed.

针对非接触感应电能传输系统的构成，讨论了非接触感应电能传输系统的设计准则，介绍了变换器的互感等效电路模型，并进行了阻抗分析。

Difference between the traditional ideal model and the actual nonideal converter is a problem that cannot be ignored to model switching converters.

传统的理想模型和实际电路之间的偏差是开关变换器建模不可忽视的问题。

It proposes the control-output transfer function of the nondeal Buck converter using circuit average method, the model in Pspice 10.0, the open-loop and gain of the voltage control loop simulations of the system. A prototype of output power 15W has been made up, and the experimental results are agreed with the simulative results.

用电路平均建模法推导出非理想Buck变换器控制-输出的传递函数，在PSpice10.0环境下建立了仿真模型，对系统进行了开环和电压控制环路增益仿真，并在研制的15W实验样机上进行了系统的实验测试。

The output voltage characteristic of MC was analyzed based on the modulation vector approach.

基于调制矢量的概念分析矩阵变换器的输出电压特性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。