电流变换器

With reference to this fact, two new feedforward methods are presented in this thesis.

最后，本论文对电流型控制DC/DC 变换器的混沌现象进行了分析。

Taking zero-current switching quasi-resonant SEPIC power converter as controlled object, this dissertation designs an on-line adjustable modification factor α PID controller.

针对零电流开关准谐振 SEPIC 功率变换器为控制对象，设计了一种α因子在线自调整模糊 PID 控制器。

The ZCS condition for lagging switches under wide load range is provided by a secondary auxiliary circuit, and an unbalanced-voltage-division flaw which inheres in ZVS half-bridges in series hybrid DC-DC converter is overcome in the proposed converter, consequently the converter is more practical.

利用副边的辅助电路在宽负载范围内实现了滞后管的零电流软开关，并克服了以前出现的ZVS半桥串联混合式直流变换器所存在的2个半桥分压不均衡的固有缺点，从而使该类拓扑更加实用。

This paper presents a half-bridge switching power supply in which a intelligent intergraded chip named UC3825 is used.

利用 UC3825芯片构成了 PWM 控制的半桥变换器，文中给出了电压补偿网络和电流保护等重要的外围电路的工程设计方法。

If unbalances were very sharp it would be necessary to use three single phase SMES, whose converter s could use either current or voltage source indistinctly.

倘若不平衡非常严重，就必须采用三个单相SME，这些变换器可以是电流源的，也可是电压源的，且是等同的。

Then, stability boundary is obtained through the critical condition of inductor current conduction mode of the forward converter. The nature of this instability phenomenon is analyzed and considered as border collision bifurcation, and its mechanism is further discussed.

根据Forward变换器电感电流导电模式的临界条件得到了相应的稳定性边界，并对低频不稳定现象的边界碰撞分岔本质进行分析和讨论。

Firstly, the reasons of lower power factor and high harmonic are analyzed in the conventional laser power supply, and the need of load characteristic of the laser is also thought. So the new type high performance power supply of DPSSL which is constituted of two convertors is obtained. The principle of the main circuit, control method and protective circuit are described.

本文首先通过对传统激光电源中功率因数低、谐波电流大等缺点的分析，再结合半导体泵浦源的特性要求，提出了一种基于两级变换器的新型高性能半导体泵浦固体激光器电源。

The prototype was completed, and the simulation and experiment results show that the permanent magnet synchronous motor system of matrix converter based on the hybrid modulation has good control performance and high input power factor.

原理样机试验结果表明，采用空间矢量SPWM电流控制的矩阵变换器-永磁同步电机系统不仅达到了良好的矢量控制，而且也提高了输入侧的性能。

The operation of RCD clamped flyback converter based on peak current control are presented,and the design criterion of the key parameters such as RCD clamp circuit is proposed.

本文论述了峰值电流控制RCD箝位反激变换器的原理，并首次提出了RCD箝位等关键电路参数设计准则。

The steady state of CDR converter is analyzed. The equivalent circuits and corresponding formulas are proposed in each mode of overall 12 modes.

对倍流整流的全桥移相变换器作了稳态分析，给出了12个运行模态的等效电路和电压电流公式。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷