The gird side converter is adopted DC voltage stable and unit power factor grid-connected control, and feedback the active power absorbed from the load side to the grid side.

网侧变流器采用直流电压稳定并保证并单位功率因数并网，并将负荷侧吸收的有功功率馈送回电网。

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The three-phase PWM voltage source rectifier presented in this paper owns such features as constant output voltage, running under unit power factor and feedback of the power into the power networks.

三相电压型PWM整流器具有输出电压恒定、能实现单位功率因数运行的特点，甚至可以实现电能回馈电网。

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Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.

在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。

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With its NVIDIA ION-based motherboard, the Pulse delivers the best graphics solution available for low-power, small form factor designs" says Drew Henry, general manager of the desktop GPU business unit at NVIDIA. "By adding the GeForce 9800 GT ECO, gamers can enjoy superior performance in a design that saves both energy and space.

ENGADGET: Maingear introduces eco-friendly, Ion-powered Pulse SFF PC