查询词典 control signal

Based on two kinds of control strategies of VSR under unbalanced grid condition,the introduction of a new VSR control strategy featuring undamped -oscillation that simplifies the controller structure and effectively improves VSR"s performance under unbalanced grid condition.· A systematic description of the state switching in trilogic PWM signal generation of three-phase CSR by using the conversion between bilogic and trilogic switching functions.· Referenced to the CSR"s trilogic PWM signal generation, an approach to achieve low-stress natural commutation of switching devices by reshuffling the vector composition sequence, resulting reduced switching loss.

在研究了两类电网不平衡时的VSR控制策略基础上，提出了一种新型的基于无阻尼振荡控制器的VSR不平衡控制策略，在简化控制结构的同时，有效地改善了电网不平衡时的VSR控制性能；·通过二、三值逻辑开关函数间的转换，系统地描述了三相CSR三值逻辑PWM信号发生中的状态切换；·结合三相CSR三值逻辑PWM信号发生规律，提出了通过调整矢量合成顺序而使功率管获得自然换相的低电压应力SVPWM控制，从而有效地降低了功率管的开关损耗。

Sections of mainstreet as an example,dosigns control of the inter section of pedestrian crossing the street on the downstream signal cordination;adjusting difference to control the time of pedestrian crossing the street,consequently,signal lamp can build in the street.

本文以长春市亚泰大街部分路段为例，提出了行人过街的上下游信号交叉口协调控制的设计方案。

This system consists of a power unit, a four-electrode probe, a constant current drive unit, pre-amplifier and filter units, a signal generator unit, and data acquisition and control units, where the signal generator unit, and the data acquisition and control units are carried out utilizing DAQ card (PCI-6024E) which is mounded inside a PC.

本系统硬体方面主要包括下列几个部份：电源电路单元、四端电极单元、定电流驱动单元、前置放大与滤波单元、信号产生单元、和资料撷取与控制单元等。

In order to conduct optimized signal control at roundabout and improve the service level, two methods of signal design for cross roundabouts are compared, one is the multi-approach going combined with circulating road control, the other is each phase for entrance. After the.

为了对环形交叉口进行合理信号配时设计，提高信号控制环形交叉口服务水平，对&多进口道放行协同环道控制&和&单口放行控制&两种较为常用的环形交叉口信号控制设计方法进行了比较分析。

The introductive robot arm of this text can output two lines pulses by the PLC, driving the horizontal stalk, and the perpendicular stalk to drive the electrical engineering actuator respectively, to control the robot arm precision of the horizontal stalk and perpendicular stalk at the fixed position, tiny move switch input the position signal to the PLC.The direct current motor drags along to begin the claw and bedrocks to revolve, the position signal from revolve the code dish and near to the switch feedback to host of PLC;The electromagnetism valve control the machine hand open and close, thus carry out the function of the machine hand precision work.

本文介绍的机械手是由PLC输出两路脉冲，分别驱动横轴、竖轴步进电机驱动器，控制机械手横轴和竖轴的精确定位，微动开关将位置信号传给PLC主机；直流电机拖动手爪和底盘旋转，位置信号由旋转码盘和接近开关反馈给PLC主机；电磁阀控制气开阀的开关来控制机械手手爪的张合，从而实现机械手精确运动的功能。

Baseband signal can control by serial each that one-chip computer produce phase place , DDS of generator control and bring in realizing, and the phase locking ring of the integration can produce the signal carrier within AD9856 chip, its frequency is set up through the interface of the outside one-chip computer.

基带信号可以由单片机产生的串行码元控制DDS发生器的相位控制端来实现，而AD9856芯片内部集成的锁相环可以产生载波，其频率也是通过外部单片机的接口来设置。

Total circuit scheme and time sequence of tool design and implementation have been designed on the AIL logging characteristic. The design and analysis for circuit unit have been carry out on the several units such as main control circuit, signal phantom circuit, signal control circuit, amplifier circuit, A/D circuit, transmitter drive circuit and power circuit.

按照AIL的结构特点，进行了仪器总体设计，设计了仪器工作电路原理和工作时序，在此基础上，进行了主控制电路、信号幻像转换电路、信号控制电路、放大电路、A/D转换电路、发射驱动电路、电源电路等单元电路的分析和设计，从而完成了仪器单元电路的设计与实现。

Under the favor of this exhibition, we would like to recommend:ACTRA ATMS,a 3rd generation intelligent transportation management System by Eagle Traffic Control System, which is a very suitable system for China urban traffic control;Long mast traffic signal pole (patent No.972211349)which make traffic signals observed through the extend long arm;Eagle's LED traffic Signal with international quality and domestic price;BEMP-2000 multiple phases controller, an economical and practical controller designed by us for the traffic demands of developing city in China;Intelligent parking meter.

隆重推荐：ACTRA系统-鹰公司新近开发出的第三代智能交通管理系统(非常适合中国交通建设的实际情况)、长伸臂交通信号标志杆(已获国家专利局专利权，专利号972211349)、美国Eagle LED交通信号灯、BEMP2000系列多相位信号机(本公司自行开发，32相位，经济实用)、智能停车收费咪表。

When detecting that the communication between an external processing unit and the CPU gets into a runaway state while the CPU is performing a memory access to the external processing unit in a handshaking method, the runaway detection control unit outputs a pseudo acknowledge signal to the memory access control unit, in place of the normal acknowledge signal.

备有监视设置在微计算机(1)的外部的外部处理单元和存储访问控制装置(11)的通信的失控检测控制装置(12)。失控检测控制装置(12)，当CPU(10)以同步交换方式对外部处理单元存储访问时，在检测出外部处理单元与CPU(10)的通信成为失控状态的情形下，代替标准确认信号(DK23)将拟似确认信号输出到存储访问控制装置(11)。

Dynamic large-signal, DC, and small-signal circuit models including parasitic resistances and current ripples of nonideal synchronous rectifier buck converter operating in CCM are established. Closed-loop modeling of nonideal synchronous rectifier buck converter for voltage-mode control is studied. Transfer functions are obtained. Effects of parasitic components on control loop design of the converter are explored. Systematic simulation analysis is performed. All the results show that it is necessary to include parasitic components of converters into equivalent models.

首次建立了考虑寄生电阻和电流纹波的同步整流 Buck 变换器在连续工作模式下的大信号平均模型、DC 和小信号电路模型，研究了电压控制的闭环建模，导出了传递函数，剖析了变换器的寄生参数对其控制电路设计的影响，进行了小信号特性的仿真研究，进一步阐明了考虑变换器的寄生参数建模的必要性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷