In order to reduce the equipment size, sometimes the large-scale forging pump press commonly used high intensity of pressure (about 35 megabars), also uses 100 megabars above ultrahigh voltage.

为减小设备尺寸，大型锻造水压机常用较高压强（35兆帕左右），有时也采用100兆帕以上的超高压。

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In conventional CMOS charge pump circuits, the pumping high voltage is limited by MOS threshold voltage, so that it can not use less cascade stages to pull up a high voltage which we want to generate.

在传统的CMOS电荷泵电路中，电荷泵输出的电压受MOS管的阈值电压限制，所以当要求电荷泵的输出电压较高时，则不得不连很多阶来达到要求。

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The paper mainly introduces the application that the high voltage inverter in the oil field pump and joint electricity effect is clear, and possesses application and dissemination value.

本文叙述了高压变频器在油田注水泵上的应用，节电效果明显，具有推广应用价值。

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