In this paper, the voltage voltage controlled SPWM adapted to the ripple of the DC power supply is presented and is applied in the practical inverter with satisfactory results.

本文提出一种能够适应电源纹波的电压电压控制SPWM电路并将其应用于实际系统，取得了较好的效果。

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This is called the knee voltage or cut-in voltage.

这被称为膝电压或插入电压。

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While it is charging, a voltage comparator constantly compares the voltage across the capacitor to a reference voltage.

当充电时，一个电压比较器就不断地将通过电容器的电压和一个参照电压进行比较。

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If there were no voltage on the plates, we would expect everything to be over here in some negative value falling.

如果板子上没有速度，这些可能都在这,都是负值下降的。

麻省理工公开课 - 固态化学导论课程节选

And I am able to vary the voltage on the plates making this for argument's sake negative and this for argument's sake positive.

我可以改变两个板子上的电压,为了论证，这个是负电,这个是正电。

麻省理工公开课 - 固态化学导论课程节选

So essentially, they regulate this action potential, and they do so by helping to establish and then control the voltage gradient within the cells.

总之本质上，它们负责调节动作电位,它们做到这一点通过协助制造,并控制细胞内的电位梯度。

麻省理工公开课 - 化学原理课程节选

Main.net's system skips the high-voltage lines, injecting data into the grid further downstream, on medium-voltage (4, 000 to 25, 000 volts) lines.

FORBES: Technology

Their job is to convert high-voltage alternating current from the mains into low-voltage direct current for mobile phones, laptops, iPods and other electronic gadgets.

ECONOMIST: How a boring gadget saved $2 billion-worth of electricity

High voltage is the best way to transmit power (the higher the voltage, the smaller the loss), but high voltage is not usually what the user wants.

ECONOMIST: Power transmission