input current

In variable-frequency drives of AC motor, it needs to control the relevant variables to ensure three-phase equilibrium of the sinusoidal input current in order to keep the electromagnetic torque of AC motor constant.

异步电机的变频调速，需要控制相关变量，保证异步电机输入三相平衡的正弦电流，这样才会合成恒定的电磁转矩。

With only one set of control system, single-stage PFC converter can realize the input current shaping and the fast regulation of output voltage. It especially fits low-power occasion well because of the advantage of simple structure and low cost.

单级PFC变换器仅用一套控制电路，同时实现输入电流整形和输出电压快速调节，具有结构简单、成本低等优点，特别适合小功率场合的应用。

It is a single-stage converter operated at discontinuous conduction mode ( DCM) of an input current, and it combines the technique of current resonant and PFC. It has characteristics of easy control, input current automatically following input voltage, and higher power factor.

这种变换器工作在输入电流不连续导电方式（DCM），综合了电流谐振技术与PFC技术，具有控制简单、输入电流自动跟踪输入电压、功率因数较高的特点。

It reduces the high hypo syntony wave output part included in the converted input current.

减少了变频器输入电流中包含的高次谐波成份的输出.

The active power at mains is dependent on input current modulation index, input filter parameters, input current displacement and load resistance, so are reactive power and input power factor;

输入端有功功率、无功功率和输入功率因数都与输入电流调制度、输入滤波器参数、输入电流位移和负载电阻大小有关；

Measurement of input current harmonic wave and methods of reducing harmonic wave

输入电流的谐波检测计算与降谐处理方法

Insulation transformer output current and input current completely separated.

绝缘变压器使输出电流与输入电流完全分离.

Analysis and compensation of input current dead-zone in three-phase single-stage full-bridge PFC converter

三相单级全桥PFC变换器输入电流死区分析与补偿

Compared to conventional single-stage topology, input current is well corrected and power factor appropriates to 1.

与传统 单级 结构相比,新拓扑输入电流校正效果明显,功率因数接近1.

In order to solve the harmonic pollution of rectifier circuit in the power electronic devices, we must reduce the THD of input current in rectifier, increase its power factor.

为了解决电力电子装置中的整流电路所带来的谐波污染问题，必须减小整流电路输入电流的总谐波畸变率，提高它的功率因数。

Harmonic Analysis and Parameters Design of PWM Rectifier Input Current

PWM整流器的输入电流谐波分析及参数确定

There are no double frequency phenomena between the output displacement and input current with bias magnetic field, and double frequency phenomena without bias magnetic field.

当驱动磁场频率小于200Hz时，有偏置磁场时致动器的输出位移与输入电流之间无倍频现象，无偏置磁场时有倍频现象。

Large control range: 3-32 VDC with input current limiter.

大的控制电压范围: 3-32VDC,有输入电流限制器.

A single-stage PFC converter combines the PFC stage and a DC/ DC converter into one stage with a shared switch and controller. implements the input current shape and provide tight output regulation.

单级PFC变换器把PFC级和DC/DC级集成在一起，共用开关管和控制电路，同时实现输入电流的整形和对输出电压的调节。

The instrument used for the measuring electrode is a high precise multi-channel system constructed with a Σ-AADC as the core, a high input impedance amplifier and a low input current multiplexer.

对于硫属玻璃电极，我们以高精度的∑-△ADC为核心，配以高输入阻抗低噪声的仪表放大器和低漏电流模拟开关构成了多路高精度电极测量系统。

The dynamic range of the device is high enough to enable an output swing of around 220 mV for 200 μ A input current, while the power dissipation is only 76 mW.

在输入电流为200μA时，其输出电压的动态摆幅达到220mV，功耗仅为76mW。

The influence factors of input current distortion rate , such as : the values of inductor, hySteresis hod.

讨论了不同电感 、 不同滞环大小及不同死区对输入电流畸变率的影响.

Harmonic Elimination Input Current for a Three-phase High Power Arc Welding Inverter

三相大功率焊接逆变电源的网侧电流谐波抑制

Three-phase rectifier, often used in high power applications, its input current is greater impact on the grid.

三相整流器，往往应用于高功率场合，其输入电流对电网的影响也更大。

The paper gives two kinds of approaches to measure the ripple current in input current of DC-DC converter or DC-AC inverter.

文中叙述了直流直流变换器或直流交流逆变器输入电流中纹波电流的二种测量方法。

Furthermore, to improve the power factor, a novel design can considerably minimum THD of the AC input current by increasing the switch-on time near the zero-crossings of the line voltage.

另外芯片内部还特别加入了一个优化电路，可以增大功率开关管在交流输入电压过零时的导通时间，优化输入交流电流的THD，进一步改善功率因数。

Harmonic Analysis of Input Current to Rectifier Side of Inverters

变频器整流侧输入电流的谐波分析

It adopts the techingue of active current wave-shaping to control continuous conduction of input current. Its switching-cycle is constant, and its conduction time is modulated according to the slope of input current.

它采用有源电流波形整形技术，控制输入电流连续导通，其控制开关的周期是固定的，导通时间的大小是根据输入电流的斜率进行调控。

For the continuous input current, the converter can be used in power factor correction, and the realization is simple.

由于该变换器的输入电流连续，该变换器适合于功率因数校正电路，且实现较为简单。