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English: Superior Power products, in addition to within the whole framework of an international universal AC input , a variety of constant-current output, up to 95% efficiency 、 small size , with a short-circuit / over load / over voltage / over temperature protection and so on, also has a built-in active PFC function. This series of products are more efficient, longer life, and energy-saving more pronounced.

公司简介::久嘉电源系列产品,除具有国际通用全范围内交流输入,多种恒流大电流输出,效率高达95%、体积小,带短路/过负载/过电压/过温度保护等特点外,还具有内置主动式 PFC 功能,该系列产品效率更高、寿命更长、节能更明显。

An apparatus simulating the discharge in AC PDP cell is thus designed. It consists of a driving power, discharge cell and vacuum system. Measuring are made possible on the working voltage and stability of dielectric protective film made from different materials with a variety of different processes. The secondary electron emission property can thus be properly reflected. Examinations are also the gas species, mixture composition ratio and pressure, discharge gap, etc., with reference to the discharge characteristics in AC PDP.

该装置由驱动电源、放电室及真空系统组成,能够模拟AC PDP的工作条件和过程,可用来测量AC PDP工作过程中用不同材料、方法及工艺制成的保护膜的工作电压、稳定性等,从而衡量保护膜的二次电子发射性能,还可用来测量AC PDP放电单元内所充气体的种类、混合比例、压力以及放电间隙的距离等参数对AC PDP放电特性的影响。

The dimmer control circuit comprises: three-end bidirectional controllable silicon switch element, comprising grid and turned on by trigger signal of the grid, connecting to AC power supply through lamp load; and a first variable resistor, possessing adjustable resistance and regulating lamp brightness by following modes: changing resistance value of the first variable resistor, changing phase of the trigger signal corresponding to AC voltage waveform, prolonging or shortening turning-on time bucket of three-end bidirectional controllable silicon switch element, thereby changing current provided to the lamp load.

一种调光器及调光控制电路,该调光控制电路包括:三端双向可控硅开关元件,其通过灯负载连接到交流电源,其中,三端双向可控硅开关元件具有栅极,并且由输入到所述栅极的触发信号开启;以及第一可变电阻器,其具有可调节的电阻值,其中,通过以下方式来调节灯负载的亮度:改变第一可变电阻器的电阻值,改变所述触发信号相对于交流电压波形的相位,延长或缩短所述三端双向可控硅开关元件的开启时间段,从而改变了提供给所述灯负载的电流。

Aiming at the features of the mute circuit of PVW2000 series video-recorder with power on, illustrates their general principles, offers the inner circuit to the power on pulse generator M51957BL, the parameters for the main parts and the reference voltage for every key points in different conditions.

针对PVW 2 0 0 0系列录像机中开机静音电路的特点,对其基本原理进行了详细的分析,给出了电源检测元件M5 195 7BL的内部电路、各主要元件的参数以及不同状态下电路中各关键点的参考电压,指出了系统内不同单元开机静音电路的差异及电路故障的排除方法。

Based on the developed variable polarity TIG welding power supply ,it establishes variable polarity TIG welding arc multi-information measuring and processing system by adopting memory oscilloscope,high speed video-recorder?spectrograph?welding arc dynamic analyzer and computer.

以研制的变极性TIG 焊接电源为实验平台,采用记忆示波器、高速摄像仪、光谱分析仪、焊接电弧动态分析仪,建立起变极性TIG焊接电弧多信息测试分析系统,同时采集焊接电流、电弧电压、电弧形态和电弧光谱等重要信息,并基于VisualC++语言开发的软件系统对采集的各种信息进行融合及分析。

This text introduce a sort of new pattern soft switch PFC circuit .First, analyze the develop course of the on-off power supply. Second, relate the harm of humorous wave to the commonality electricity net. Third, present the topology and the principium chart of the soft switch PFC and analyze it .At last ,set the parameter and simulates the converter of with matlab simulation. more over ,get the hold of well voltage and current wave , minish the spoilage of the circuit, enhance the efficience of the circuit, meet the demand of the miniaturization and viridity.

本文引入了一种新型的软开关PFC电路,首先分析了开关电源的发展历程,然后讲了谐波给公共电网造成的危害,再给出了这种软开关PFC的电路拓扑及原理图并对其工作原理进行了分析,最后对其参数进行设置在MATLAB软件进行了仿真,并得到了良好的电压电流波形,而且减小了电路的损耗,提高了电路的效率,实现了小型化,绿色化的要求。

This dissertation researched and developed a DC voltage amplification driver for the IDM.

本文主要研究开发了适用于驱动IDM的电压型直流放大式驱动电源。

You must ensure that each power source does not exceed the maximum voltage rating of the servos.

您必须保证,各个电源不超出伺服机的最大电压规定值。

Volatile voltage, an exchange of purification or UPS, a single AC voltage stabilizer can be

扰特大、或是电压动荡不定,有条件的用户配交流净化电源或UPS,无条件的用户配一台交流稳压器)。

This new control method can achieve zero voltage regulation of the converter output voltage, i.

PSPICE8.0的计算机仿真和试验研究结果表明,这种新型非线性闭环控制策略具有快速的动态响应,对电源输入电压与负载电流的扰动具有优良的抑制能力,抗干扰能力强,无需乘法器或除法器、控制电路简单、性价比高。

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