... 方向电源 directional traffic power source 方向转接器 directional switch 防护变压器 protective transformer ...
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fast bi-directional switch 快速双向开关
fast bi directional switch 快速双向开关
silicon bi-directional switch 硅双向开关
fsimply becauset bi-directional switch 火速双向开关
Three-phase Buck bi-directional switch rectifier 三相Buck型双向开关整流器
bi-directional static switch 双向静态开关
directional control switch connector 转向控制开关接头
Based on many modulation techniques are compared,we decieded to use the direct space vector modulation method. Through theoretical analysis of the commutation and structure characteristic of bi-directional switch, We choosed the four-step commutation which is achieve security.
本文在分析了矩阵变换器的数学基础、工作原理和特点的基础上,对现有矩阵变换器的控制算法:Venturini直接法、瞬时电压法、空间矢量调制法进行了比较,最终确定采用直接空间矢量调制算法;在对已有的换流策略深入研究的基础上,根据双向开关的特点,选择了易于实现且较为稳妥的半软开关换流法。
参考来源 - 基于矩阵变换器的异步电动机直接转矩控制系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
For example, a transistor is a controllable switch, but it is directional between the collector and emitter, and it has interactive control between the base and emitter.
例如，晶体管是可控的开关，但它在集电极和发射极之间是定向的，并且在基极和发射极之间是配合控制的。
A proportional directional valve however will be controlled by an electrical device more like a dimmer switch.
一个比例方向阀是由与一个与调光开关非常象的电设备控制的。
Drag onto the page to add a thyristor, bi-directional triode-type, triac-gated switch.
拖到绘图页后，可以添加可控硅、三端双向可控硅开关、三端双向可控硅门开关。
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