本开关电源具有宽范围的交流输入电压。
This specification describes a full range AC input voltage switching power .
应该在最大交流输入电压270伏和轻载，空载下测试。
Note: The power supply shall be test at max AC voltage (270Vac) and min load or no load.
可用于全球范围，能够接受交流输入电压90-264伏特。
For worldwide usage the adapter accepts AC input voltage of 90 - 264 volts.
文章对一种只检测交流输入电压而不需要检测输出直流电压的简化单相pfc变换器进行了理论分析和研究。
It theoretically analyzed and studied a simple DC voltage sensorless single APFC converter by detecting an AC line voltage in the paper.
当交流分量的频率增加时，直流仪表的响应就会变得不够快，直到在某一频率时，仪表只能显示出输入电压的平均值。
As the frequency of the AC component increases, the DC meter response decreases, until at some frequency only the average input voltage will be displayed.
如果输入端的交流电压很大，其一部分信号被整流，于是在被测的直流信号中产生了误差。
If the AC voltage at the input is large, part of this signal is rectified, producing an error in the DC signal being measured.
主电路参数主要有交流输入侧电感值、直流输出侧电容值、给定的直流输出侧电压等。
The main circuit parameters mainly contain AC-side input inductor, DC-side output capacitor, given output voltage of the DC-side.
本发明电路结构简单，输出的交流电的波形为纯正弦波，输出的电压和频率稳定，不会随输入电压和负载的变化而变化。
The circuit of the invention is simple, the wave output is pure sine wave, voltage and frequency output is stable, they do not change with input voltage and load.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
仿真和实验结果表明该系统能够有效抑制三相整流电路交流侧输入电流的谐波，降低输出电压纹波，减小整机体积。
The simulation and experimental results show that this system can restrain harmonics of three-phase rectifier of AC-side input current, reduce the output voltage ripple and decrease the volume.
从本质上来讲，功率因数校正的目的是使用电设备的输入端口对交流电网呈“纯阻性”，保证输入电流和电网电压随时成正比。
In essence, the aim of PFC is to make the input terminal of electrical equipment appear resistive to the AC line, and insure that the input current be proportional to the instantaneous line voltage.
该CTR系列产品提供具有UL认证的交流额定输出功率为每通道25安培，在600伏交流电，交流或直流输入控制下，零电压或随机打开，具有IP20触摸安全构造和内部散热器。
The CTR series offers UL approved AC output ratings of 25 amps per channel at 600 VAC, AC or DC input control, zero voltage or random turn on, and IP20 touch safe construction with integral heat sink.
当输入电压为正弦交流电压时，非晶薄带磁感应效应变化幅度的不重复性误差很小，且受温度和湿度的影响小。
The non-repeatability error and influence induced by temperature and humidity are small when the input voltage is sinusoidal.
由于LED电流的稳定性，这些设计使输入交流电压的范围扩大，其有利于多标准交流供电设计；
Because of the stability of LED current, these designs provide an expanded input-ac-voltage range, which may be useful for a multistandard ac-powered gadget;
当输入交流电压为额定值的下限时，输出电压负载满载，最大输入交流电流2.5A。
5Arms max At any input voltage and rated, DC output rated load.
当输入交流电压为额定值的下限时，输出电压负载满载，最大输入交流电流2.5A。
5Arms max At any input voltage and rated, DC output rated load.
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