1、

Features: Low saturation voltage, excellent dependence of hFE on current, fast switching time.

特点: 低饱和压降, 电流放大线性好, 开关速度快.

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2、
3、

Error voltage vector generated by dead-time, switching devices turn-on and turn-off time are introduced. Weakening methods that consist of decreasing carrier frequency and decreasing direct current bus voltage are educed.

给出因死区时间和开关器件开通、关断时间引起的误差电压矢量,依据误差电压矢量的表达式,采用降低载波频率和减小直流母线电压的方法削弱死区效应。

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4、

User facilities The time switch ( TSW) is a main component for implementing the switching in time swtich SPC.

在时分用户程控交换机中时间接线器(TSW)是实现交换的核心部件。

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5、

By estimation of the rise time of the Fibonacci like charge pump, an optimal switching frequency is suggested to make a compromise between the rise time and the dynamic power dissipation.

通过对Fibonacci型电荷泵上升时间的估算,对减小上升时间和动态功耗进行折中考虑,本文提出优化开关频率的方法。

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6、

What is Time Division Multiplexing ( TDM ) Switching chinesesimple.

什么是时分多路复用 ( TDM ) 交换?

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7、

At the present time, the bottleneck the optical packet switching network is the optical buffer technology.

目前, 光分组交换网络发展的瓶颈是光缓存技术.

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8、

ATM is a new information transfer method which combines the statistios multiplexing and time division switching.

异步转移模式(ATM)是继时分交换和分组交换之后的将统计复用与时分交换融为一体的新一代信息转换方式.

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9、

A new integral-lift-base construction method for a tall antenna mast is presented to remove a hidden peril of switching off shock owing to immersion and to avoid suspending transmission for a long time resulting from the conventional construction method.

为消除电台发射塔基座浸水跳闸隐患,本文研究提出塔桅结构天线基座整体提升的新型简易施工法,以避免拆除铁塔重浇塔基,再安装塔身的常规施工法造成长时间停播的不良后果。

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10、

In this paper, multiple fault detection of line concentrator time switch in SPC switching system is discussed.

本文研究程控数字电话交换机中用户集中器时分接线器(LTSW)的多故障检测。

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11、

The comprehensive switching control is carried out by the control strategy of combining transformer load with transformer temperature and the change rate of temperature. The cyclic operation of cooling unit group is controlled by the principle of accumulated operating time balance.

装置以变压器的负荷、油面温度与温度变化率相结合的控制策略进行冷却器的综合投切控制,以冷却器组的累计运行时间基本均衡为原则进行冷却器组循环控制。

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12、

It Consists of bidirectional switch and zero current switching control technique to achieve on time rectification in the primary circuit. High power factor, high efficency and low THD have been obtained.

电路采用零电流转换方式进行控制,并采用双向开关实现了电路初级的同期整流,从而实现了高功率因子、高效率和低高次谐波的功率因子改善电路。

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13、

The exact measurement on switching time provides reference for optical switches using in different field.

准确测量光开关的转换时间为其应用在不同领域提供了参考。

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14、

Study on measurement technolagy of the frequency switching time

频率捷变时间测量技术的研究

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15、

A new modeling method using the ULN with switching mechanism is studied, where both parameters and time delays are adjusted to model the nonlinear systems.

研究了一种新的带有开关机制的ULN建模方法,不仅对其中的参数而且对时间延迟都进行了调整以适应非线性系统的建模要求。

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