This article introduces the fundamental of direct current regulator, and designed a low - voltage power which can inspire the laser instrument.

介绍了直流稳压电路的基本原理，并设计了能激发激光器的低压电源。

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For compensating reactive power and harmful currents in low voltage power system, the paper proposed two control schemes for STATCOM, which are indirect-current control and direct-current control.

本文针对低压配电网络的无功补偿和有害电流滤除问题，提出采用间接和直接电流控制两种STATCOM方案。

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The direct-current leakage test is implemented by using the microampere shielded in low-voltage, and the leakage current increasing of generator stator winding abnormally is detected.

采用低压屏蔽法对发电机定子绕组进行直流泄漏试验，发现泄漏电流异常增大。

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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.

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