power stage

At present, the research of the single-stage power factor correction ( PFC) circuits is mostly concentrated on the application of low powers. A zero-current-switching ( ZCS) single-stage AC/ DC converter with high power factor is proposed to use in medium and high power conditions.

目前，对单级功率因素校正电路的研究大多集中在小功率应用领域，为此该文提出一种能够应用于中大功率场合、实现了零电流开关的单级高功率因数AC/DC变换器拓扑。

The power stage of servovalves is spool valve, playing the role of hydraulic pressure amplifier.

电液伺服阀的功率级一般为滑阀, 起液压放大器的作用.

Discussions on 5 Percent Two Stage Drain Problem in Yiyang Power Plant

益阳电厂300MW机组5%串级疏水问题探讨

A drive board, which implements the power stage for motor control and interface for analog and digital signals, for distributed motion control system is designed.

设计了分布式多轴运动控制系统的驱动板，实现了电机控制接口和常用模拟数字信号接口。

The four stages power amplifier is using tree type network for power combination. Four paralleled transistors are matched with load-pull impedance at the last stage for maxium output power.

功率放大器采用4级放大，树状功率合成网络，末级是4个晶体管并联并按负载牵引匹配，在单片上获得尽可能大的功率输出。

The research results can provide a basis for tapping the latent power to develop the thick oil layer at the high water cut stage.

研究结果可以为挖掘高含水期厚油层开发潜力提供依据。

Finally, the power stage hardware and the control circuit are connected together for debugging and experimentation.

最后，将基于DSP软斩波调功并联谐振感应加热电源的主电路和控制电路进行了系统联调实验。

At first three phases which are preheating stage, pressure lifting stage and constant-speed drying stage, the instrument calculates the optimal microwave drying power according to the sample's type and initial mass.

仪器根据被测试样的种类和初始质量，计算试样在预热、压力升高、恒速干燥阶段的最佳微波干燥功率；

RF power of stability and power output are influenced greatly by the heat dissipation of drive stage circuit board and power amplifier stage circuit.

在调试时我们发现驱动级电路板与功率放大级电路板的散热对于射频电源的稳定性与功率输出影响比较大。

During the pile testing of Guichi power plant's first stage engineering, various synthetical tests are engaged in.

贵池发电厂首期工程在试桩中，进行了多项目的综合性试验。

Based on the exergy loss coefficient analysis, we can find that exergy loss mainly occurred in the three-stage thermostatic biogas system and gas engine power generation subsystem.

可以采用对沼渣进行回热回质，减小三级恒温生物质发酵子系统的火用损；

However, Due to the limitations of the single-stage converter, when the bus voltage is high and wide input voltage range, the single-stage converter is not suitable for multi-output low power switching power supply.

但是由于单级变换器自身的局限性，当电源母线电压宽输入范围时，单级变换器并不适合用作多路输出小功率开关电源的主功率拓扑。

This method is used to calculate the heat distribution and thermal deviation of the final stage reheater of a power boiler, and the calculating results conform to the measuring results.

利用该方法计算了某电厂锅炉末级再热器的流量分配和热偏差情况，与实测结果相吻合。

An detailed model for the charge pump power stage is given to guide the system design.

为了保证系统参数设计的合理性，论文对电荷泵功率级进行了详细的数学模型分析。