Operating principle of power factor compensating device for 8k electric locomotive is briefly described as well as its parameter selection, switching on and off control.

本文概述了8 K机车功率因数补偿装置的工作原理、参数选择及投切控制。

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These devices feature an excellent combination of fast switching, ruggedized device design, low on-resistance, and cost effectiveness.

这些器件具有快速开关的优化组合，加固设备的设计，低电阻，和成本效益。

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The single-chip switching mode power supply based on TOP221Y device is introduced in the paper. The performance characteristic and operation principle is analyzed.

介绍了基于TOP221Y器件设计实现的单片开关电源，分析了其基本的性能特点和工作原理。

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Given that Windows Phone is all about the glance and go nature, having to spend a few moments thinking about switching the device on, or turning it and then switching it on, reduces the effectiveness of the software.

FORBES: Is The HTC Windows Phone 8X A Worthy Signature Smartphone?

The two controls on top are all you need to get the essential jobs done with this device, a button for switching it on and off (and taking stills) and the sliding record switch -- this set-up also means you can physically feel if it's recording, even when you can't see it.

ENGADGET: ION Air Pro POV camera: shoot on the piste, upload to the cloud, we go hands-on (video)

The new software works by suspending Skype's activity on an Windows 8 device within a minute of the user switching to another application.

BBC: Skype slashes battery use for Windows 8 system launch