High frequency pulse width modulation power control systems can be realized using semiconductor switches.

高频脉冲宽度调制电力控制系统，可以实现用半导体开关。

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However, the present domestic wind power control systems are mainly purchased from abroad, with poor universality and compatibility.

我国目前现有的控制系统通常是和风机设备一起自国外引进，通用性和兼容性比较差。

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The platform is a powerful online development tool. It is suitable for research and development of many kinds of digital motor control systems and digital power control systems.

该平台具有强大的在线开发功能，适合于各种数字化电机控制系统和数字化电源控制系统的研究和开发。

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The electro electric systems business markets transformers, switchgears, circuit breakers, power electronics and control systems and others.

FORBES: Hyundai Heavy Industries

The company designs and manufactures switchgear, motor control and power management systems.

BBC: Bradford Switchgear and Instrumentation jobs 'at risk'

Pick a model with sizable knobs and buttons for the audio and climate control systems along with power-operated mirrors to help reduce the amount of grip strength needed and reduce pain associated with turning or twisting motions.

FORBES: Best New-Cars (And Features) For Senior Drivers