半导体制冷片多个并联使用时，需要低压大电流的电源提供直流工作电压，为此我们设计了1。
When semiconductor chilling plate is used in parallel connection mode, a DC power supply with a low voltage and high current has to be available.
它们都工作在300千赫兹，直流母线电压400伏特，输出功率120瓦特，输出电压16伏特。
All of them have been operation at 300 kHz, bus voltage of 400 V, output power of 120 W, output voltage of 16 V.
论述WB型直流电压变送器的工作原理、完成转换的各个模块电路的作用及变送器总电路的特点。
The work principle of the WB-type DC voltage transmitter, the functions of each conversion module and the characteristic of the whole circuit of the transmitter are elaborated in this paper.
结果表明，所设计的直流开关型变换器集成模块输出电压稳定、纹波小、工作频率，高、功耗低，且体积小。
It has been shown that the designed DC switching mode converter has a stable output voltage frequency, small ripple, high operating frequency and low power consumption.
有源滤波器能否按其工作原理实现预期的谐波抑制效果，除了主电路设计合理之外，在很大程度上还依赖于保持直流侧电压的恒定。
Whether the hybrid active power filter could get desirable effects of harmonic suppression depends on the constancy of DC-side voltage besides the correct design of the main circuit.
概述了在轨道交通系统中选用直流熔断器的目的及选用方法，包括额定电压、额定电流的选择，与断路器的配合工作。
The object of using DC fuse in tunnels and way of selection were expounded, including the selection of rated voltage and current, and the coordination of circuit breakers.
内部的功率因数校正（PFC）电路以临界导通模式（CCM）工作，可获得高功率因数、低总谐波失真（THD）及直流电压调整。
PFC circuitry operates in critical conduction mode(CCM)and provides for high PF, low THD and DC bus regulation.
为了进一步提高UPQC的性能，将有源功率因数校正(APFC)技术引入UPQC直流储能单元的直流电容电压控制，详细阐述了其工作原理，并给出了仿真实验结果。
To enhance the performance of UPQC, active power factor correction (APFC) technology is introduced into the DC energy storage unit of UPQC for capacitive voltage control.
储能电容器的工作过程是在高压直流条件下进行较长时间充电，然后在很短的时间放电，从而在负载上形成高电压、大电流的脉冲。
As the storage capacitor charged under DC and discharges in a short time, which form a high voltage and large current pulse.
直流辉光放电过程中需要控制的三个重要工作参数为放电电流、放电电压和放电室内氩气气压。
There are three important parameters in the DC glow discharge process, the discharge current, discharge voltage and argon pressure in discharge source.
交流系统中，工作电压不大于额定电压1.1倍，直流系统中，工作电压不大于额定电压1.5倍。
In AC system, working voltage not more than 1.1 times of rated voltage. In DC system, working voltage not more than 1.5 times of rated voltage.
最后，通过仿真分析和对50V/20A样机的调试实验，验证了零电压零电流移相控制PWM三电平直流变换器的工作原理。
Finally, the operation principle of Zero-voltage and Zero-current-switching PWM three-level converter is validated by the simulation analyze and the debugging experiment of 50V/20A sample device.
最后，通过仿真分析和对50V/20A样机的调试实验，验证了零电压零电流移相控制PWM三电平直流变换器的工作原理。
Finally, the operation principle of Zero-voltage and Zero-current-switching PWM three-level converter is validated by the simulation analyze and the debugging experiment of 50V/20A sample device.
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