1) wideband A/D-D/A converter
宽带A/D-D/A变换
2) broadband A/D changing
宽带A/D转换
3) broadband A/D/A
宽带A/D/A
4) A/D and D/A Transforming
A/D和D/A变换
5) D/A transducer
D/A变换器
1.
Using coder,D/A transducer and frequency converting speed regulator makes up the automatic control system of rope machine's wire ranging apparatus.
利用编码器、D/A变换器、变频调速装置 ,构成制绳机排线自动控制系统 ,将原间歇位移随动控制系统改为连续位移自动控制系统 ,可以解决制绳机钢丝绳收线排布不均的问
6) d-q transformation
d-q变换
1.
The inductive parameters and models in the d-q circuit are derived firstly in the paper by a unified expression for calculating inductances of AC machines and double d-q transformations respectively.
本文首先借助电感参数统一计算公式和双d-q变换,求得了双绕组同步电机众多电感参数的表达式和d-q轴等效模型,取得与文献相同的结论。
2.
By use of d-q transformation, in this control method a three phase AC system is transformed into rotating orthogonal coordinate system and under the transformed coordinate system the compensating current of active power filter is controlled by PI controller to make it trace the reference current.
该控制方法利用d-q变换将三相交流系统变换到旋转的正交坐标系,采用比例积分调节器控制有源电力滤波器的补偿电流,使其跟踪参考电流。
3.
A method of harmonic and reactive currents detection based on d-q coordinates transformation for three-phase voltage and current is proposed, which separates the responding components after d-q transformation to realize the current detection.
该方法通过对三相电压与电流进行d-q变换后对相应的分量进行分离的方法实现对谐波与无功电流的检测。
补充资料：宽带和窄带业务
宽带业务是相对窄带业务而言的，一般来说，对于速率低于2Mb/s的通信业务统称窄带业务，如电话网、N-ISDN所提供的业务。对于高于2Mb/s的通信业务，如帧中继业务、视频点播、ATM业务、TV会议等称为宽带通信业务。 目前投入应用的宽带接入技术主要有两种：ADSL和FTTX＋LAN。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条