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New silicon carbide semiconductor research and development will enable the development of switching power supply into a new stage.

新型的碳化硅半导体器件的研发将会使开关稳压电源的发展进入一个新的阶段。

On the basis of the general analysis of the cardinal principle of the current mod...

在对电流三态调制的基本理论进行一般性分析的基础上，提出了几种典型的电流三态调制开关功放，并做了较为细致的论述。

A new method of multi and step_speed change by using PLC controlled switching model converter was introduced,it was developed to update the technology in doffer drive system of A186D high_speed carding machine.

介绍了一种采用PLC的开关量输入、输出模块控制变频器进行多级有级调速的方式，该技术可用于A186D型高速梳棉机道夫传动系统的技术改造，获得了较高的性价比与经济效益。

In addition to the cardioid directivity, it also allows to record in omni or bidirectional mode with a simple switch and thus adapting it to different recording situations.

除了心型指向型之外，通过扳动开关可以选择全指向型和8字型。因此，这款话筒可以适合多种录音环境。

In general a transmitter is used to send the information on the position of the joysticks, or switches on a radio carrier wave.

在一般的发射台是用来传送的资料上的立场的摇杆，或开关在一个电台载波。

Based on the finger's kinematics and dynamics, joint position tracking and fingertip position tracking in Cartesian space are realized respectively by tracking linear actuator position.

使用直线式电位计检测驱动器的直线位置，基于线性霍尔传感器测量电机的位置和速度，基于光电开关实现极限位置的检测和保护。

Based on a low swing, low crossing point current switch driver and central symmetry Q2 random walk pMOS current source layout routing methods, a 1.8V 10 bit 120MS/s CMOS current-steering digital-to-analog converter IP core is implemented in a TSMC 0.18μm CMOS process.

采用低摆幅低交叉点的高速CMOS电流开关驱动器结构和中心对称Q^2随机游动对策拓扑方式的pMOS电流源阵列版图布局方式，基于TSMC0.18μm CMOS工艺实现了一种1.8V10位120MS/s分段温度计译码电流舵CMOS电流舵D/A转换器IP核。

Based on 8051 production of centralized control of wireless switches its power management system.

详细说明：基于8051制作的无线方式集中控制其电源开关的管理系统。

First one is a centralized master switch that acts as heart of whole monitoring and control system.

第一个是一个集中的总开关，作为核心的整个监测和控制系统。

Firstly, oscilloscope control system based on GPIB technique is presented with friendly operation environment to the HIFU system, and it uses multithreading technique in programming to realize real-time recording and display of the signal; Secondly, temperature collection and data recording system is designed, which also could get real-time recording and display of the 16 channel temperature signal, and it's believed to be of great use for further experiments of the HIFU system; Thirdly, multiple ultrasonic phased array's phase shifter is designed,which could provide 8-bit phase control in a range of frequency where the centrical frequency is 1MHZ. Fourthly, the module of serial communication is realized to insure the communication between devices and computer, including both synchronous and asynchronous communication, which enables the system to transfer data reliably and stably; Finally, the module of digital quantity control is accomplished, which provide for upper application the consistent solution to the control of exterior devices via digital interface. It can get or set the devices state using interrupt mode to receive input signal or send output signal.

主要有以下几个方面：设计了基于GPIB的示波器控制系统，给课题的研究工作提供了一个良好的环境，它采用了多线程编程的方法，能够较好的实时显示当前波形并记录数据；设计了温度采集和数据记录系统，能够对16路温度信号进行并行同步的实时采集，用于HIFU剂量学研究中温度场检测和医疗评价；设计了相控阵相位延时电路并且通过调试，满足了课题的相位控制的要求，在中心频率为1MHZ左右的频率范围内都能够达到8-bit相位控制；实现了串口通讯模块，为各项设备与计算机之间的通讯提供保证，它提供同步和异步的通讯能力，使系统能够可靠稳定的传输数据；建立了数字量控制模块，为上层应用程序提供一致的方法使用数字接口控制外部仪器，它使用中断的方式来接收输入或输出设定的开关量信号，从而得到或设定各种仪器的状态。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。