The high power DC source is a useful equipment in industry production.
大功率直流电源在工业生产中是一种常用的设备。
This thesis mainly focuses on the control strategy of a new cascade multilevel converter with single DC source.
本文对一种新型单电源级联多电平拓扑的控制策略进行了研究。
Continuous input current is ensured, which mitigates the impact on DC source and improves DC voltage utilization.
同时该拓扑还保证了输入电流连续，减小了对直流源使用寿命的影响，提高了直流侧电压利用率。
Output amplitude in both modes can be controlled by varying the DC source voltage or by varying the pulse-width (pulse-width modulation, PWM).
两种形式的输出幅度可以通过改变直流电源电压或通过改变脉冲宽度(脉宽调制pwm)来控制。
Note that dc and cc are prefixes to work properties to indicate the source of specification.
注意dc和cc是作品属性的前缀，用来表明规范的来源。
Having initially connected the ornithopter using a DC power source, they realized that the device could lift 1.5 grams of payload, which was roughly the mass of the batteries required for flight.
起初给扑翼机接上一个直流电源之后，他们发现这个装置的有效载荷为1.5g，这大概可以勉强提起飞行所需的电池。
The use of DC electricity is another source of static electric fields, e.g. rail systems using DC, and televisions and computer screens with cathode ray tubes.
使用直流电是产生静电磁场的另一个原因，例如铁路系统使用直流电，电视和计算机屏幕带有阴极放射管。
Switching power supply or DC power to AC power through it will be a stable DC voltage source.
开关电源把直流电源或交流电源通过它可以获得一个稳定的直流电压源。
DC current or voltage source. Magnitude of AC component can be specified.
直流电流源或电压源。可指定交流分量的大小。
The two most popular programs are Direct Connect by NeoModus (at neomodus.com) and an open-source variation of it called DC++, available at sourceforge.net.
两个最受欢迎的程序是由“新方法”（NeoModus）公司（网站地址neomodus.com）推出的“直接连接”（Direct Connect）和该程序的开放源码变本，即被称作DC++的程序，这两个程序都可以在sourceforge.net上找到。
The mixer receives its power from an external DC voltage source.
该混频器接收来自外部直流电压源动力。
Thick diamond films were deposited by DC plasma jet using methane as carbon source.
以甲烷为碳源气体，用直流等离子射流法制备了金刚石膜。
The DC equation and source drain capacitance formula of the models are given and the application range of three circuit simulation programs is analysed.
在给出多种模型DC方程和源漏电容公式的同时，对三种电路模拟程序的应用范围进行了分析。
DC standard voltage source is a kind of metrology standard instrument with high accuracy.
直流标准电压源是一种高准确度的计量标准仪器。
Because the clamp effect of DC voltage source, AC side output the rectangular wave voltage waveform, and it has nothing to do with the load impedance Angle.
由于直流电压源的钳位作用，交流侧输出电压波形为矩形波，并且与负载阻抗角无关。
It OS easy to adjust, its step precision is high, and can be used for a standard DC voltage source for electronic instrument.
该电源具有调整方便、步进精度高等特点，可作为电子仪器直流标准电压源。
The PGA consists of the differential amplifier with variable source degeneration resistor and the DC-offset correction circuit.
该可编程增益放大器采用源极反馈电阻可变的差分放大器结构，且带有直流漂移校正电路。
Meanwhile, the PWM generated methods of a universal DC voltage source inverter are applied to the cycloconverter after the synchronous process.
同时也提出将用于通用型直流电压源逆变器的PWM波生成方法，经过同步处理后，可以应用到该交-交变频器中。
There are DC off-sets in the compensated source current of the traditional APF with one-cycle control due to the existent ripple and the peak current detection.
传统的单周期控制有源电力滤波器以峰值电流检测的控制方式和纹波电流的存在导致补偿后的电源电流中含有直流分量。
There are DC off-sets in the compensated source current of the APF with one-cycle control under bipolar modulation.
采用双极调制方式单周控制APF补偿后的电源电流中存在直流分量。
AC current or voltage source. DC offset can be specified.
交流电流源或电压源。可指定直流偏移。
Pulsed arc welding power source by thyristor DC chopper consists of common DC arc welding power source and DC chopper.
采用晶闸管直流斩波器的脉冲弧焊电源是由普通的直流弧焊电源，附加晶闸管直流斩波器组成的。
To describe the operating principle and control, this paper focuses on an example: a Z-source inverter for dc-ac power conversion needed in fuel cell applications.
以应用于燃料电池逆变功率变换的阻抗源逆变器为例，分析了其工作原理和控制方法。
The results show that the ceramic coating obtained under the condition of DC impulse source is more compact than that of AC impulse source.
结果表明：直流脉冲电源条件下取得的陶瓷膜比交流脉冲电源条件下取得的陶瓷膜更致密，因而具有更佳的耐腐蚀性；
In this paper, a 16 stages digital controlled DC stabilized voltage source based on LM317 is designed. Selection and realization of the adjustable resistance in this source is introduced.
以三端稳压集成电路LM317为基础，设计了一种16级数控直流稳压电源，介绍了该电源中可调电阻的选取与实现。
The switch may be coupled between the rechargeable battery and a DC power source and capable of moving between conducting and non-conducting states.
该开关可以连接在可充电电池和一个直流电源之间并且能够在导通和非导通状态之间转换。
The design of a DC sputtering power source was presented.
介绍一种大功率直流溅射恒流电源的设计。
This derices can be used for course experiments of welding power source and property evaluation of the DC welder.
从而解决了《弧焊电源》课程实验和直流焊机动特性评定中存在的问题。
交流电流源或电压源。
This paper analyses and studies the methods for measuring inductance of the iron core DC reactor of CO_2 arc welding power source.
本文对CO_2焊接电源直流铁芯电抗器电感值的测试方法进行了分析研究，指出现有的方法测试误差较大。
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