core frequency

The core frequency can be frequency-doubled to hundreds of megabytes with utilizing the advantages of integrating phase-locked loop of inner FPGA . A high frequency pulse counter has been designed and the stable pulsed drive scanning motor can be produced by use of frequency splitting of FPGA .

利用FPGA内部集成锁相环，核心频率可以倍频至几百兆的优点，设计了高频脉冲计数器并利用FPGA分频产生稳定的脉冲驱动扫描电机。

Operating conditions and structural parameters have different effect on vortex core precession frequency of cyclone on different axial height .

操作条件和结构参数对旋风分离器不同轴向高度上的涡核进动频率会产生不同的影响。

13 initial events and average of core damage frequency have achieved after ration calculation to the uncertainty of input data .

对输入参数的不确定性进行定量计算后，得到13个初因和各工况的堆芯损坏频率的均值。

At last , according to the analysis of dominant accident sequences and events ' importance , the measures of reducing the Core Melting Frequency are advised .

最后根据对支配性事故序列和各题头事件重要度的分析，提出了降低SGTR事故导致堆芯熔化发生概率应采取的相应措施。

PWM technology is the most widely applied in contravariant circuit and is also the core of frequency conversion technology . Meanwhile it also plays an important role in machine tool , hydraulic pressure location control system and other mechanisms .

PWM技术在逆变电路中的应用最为广泛，也是变频技术的核心，同时在机床，液压位置控制系统等机械装置中也发挥着重要的作用。

Based on the research of principle of asynchronous motor , to devise the systematical structure , to choose reasonable system controlling scheme , and a hardware system which kept the core of frequency convert , touch screen and PLC was designed .

在对变频调速原理研究的基础上，构建了应急调速系统的结构，选择了系统控制方案，设计了以变频器、触摸屏、PLC为核心的硬件系统。

Channel quality evaluation is the core of adaptive frequency hopping system .

信道质量估计是自适应跳频系统的核心技术。

Metallographic structure of helically rolled steel core by medium frequency induction heating

中频感应加热斜轧钢芯的金相组织

The core of a frequency hopping system is the frequency synthesizer , which decides the overall performance of the hopping system .

跳频系统的最重要部件是高性能的频率合成器，它决定了跳频系统的整体性能。

Transponder IC is the core of Radio Frequency Identification ( RFID ) technique , and its analog circuit design is very important .

电子标签芯片是无线射频识别（RFID）技术的核心，其模拟电路的设计十分关键。

Phase looked loop was used as the core equipment of frequency following , on-line adjustment of dead time realized by DSP which depend on the best dead time calculate method .

以锁相环作为频率跟踪的核心器件，根据最佳死区的计算方法，用DSP实现了死区的在线调节。

Quartz-crystal resonators is one of common electronic components which is a core and non-substitutable frequency component in electronic equipment because of its high precision and high stability .

石英晶体谐振器是常见的电子元件。由于其具有高精密、高稳定性等重要特点，是电子设备不可或缺的核心频率器件，是频率器件中是其它产品难以替代的。

The system consists of control unit with advanced MCU and CPLD as core chips , frequency measuring unit based on zero phase technique in π network , USB interface , PC and so on .

该测控系统由高性能单片机和CPLD为核心的系统控制单元、基于π网络零相位测试方法的频率测试单元、USB通信接口和PC机等组成。

According to equivalent of magnetic flux , the permeability and suppression of different combination was got Result recovers that combination of magnetic core with different frequency characteristic of permeability would improve the frequency characteristic of suppression effect .

结果表明将不同频率特性的磁环进行串、并联组合能在一定程度上改善单个磁环磁导率的频率特性，从而改善抑制效果。

And the core loss increases with frequency and field intensity .

铁芯损耗均随频率、磁场强度的增加而增加；

Control of Magnetic Core Losses for High Frequency Power Ferrite

高频功率铁氧体磁芯损耗的控制

Product Feature The charger is standard , its core component is power frequency transformer .

产品特点本充电器为标准充电器，其核心元器件为工频变压器。

Variable Voltage Variable Frequency SPWM inverter is a core component of the frequency power supply .

SPWM逆变器是整个中频电源的核心部件。

After that , bigger radius of hollow core and suitable light frequency can reduce the loss and put the PCFs into use .

发现增大空芯半径、适当选取入射光频率能将这种光纤的损耗降低到实用范围。

It is shown that the MCU core 's maximum clock frequency and instruction execution speed are three times higher than traditional MCS-51 core .

验证结果表明：所设计的微处理器核在最高时钟频率和最高指令执行速度方面均优于传统典型微控制器MCS-8051内核的3倍以上。

The available probabilistic safety analysis study shows that both the occurrence of core meltdown and the frequency of occurrence of outer containment failure are low .

现有概率安全评价指出，常规轻水堆的堆芯熔化频率及安全壳失效，放射性大量释放的频率都是很低的。

High frequency inverter power supply system mainly consists of main circuit , control circuit and drive circuit . The control and drive circuit is the core part of high frequency inverter power supply .

高频逆变电源系统主要由主电路、控制电路和驱动电路组成，其中控制与驱动电路是高频逆变电源的核心部分。

It is shown from FPGA verification and computer simulation that the MCU core 's maximum clock frequency and instruction efficiency are five times higher than those of MCS-51 chips .

验证结果表明，该MCU的最高时钟频率和指令执行效率等指标均优于MCS-51的五倍以上。

This paper described the main module of function generator in detail , which including the core module direct digital frequency synthesizer and the external circuit , such as human-computer interaction and D / A conversion module .

文中详细阐述了函数发生器的直接数字频率合成核心模块以及外围电路诸如人机交互和数模转换等模块的设计，并给出了相应的仿真结果。

The core technology of variable frequency power supply is DC-AC control system . The traditional DC-AC control system usually works out all kinds of logical and arithmetic by the controlled chips such as MCU and DSP which execute instruction in serial .

变频电源的核心技术是逆变控制系统，传统的逆变控制系统通常采用串行执行指令的控制芯片如MCU或DSP来完成各种逻辑和运算的，其实时性太差。

The specific work includes the design and implementation of the receiver module , the transmitter modules , and the comb spectrum signal generator which is the core component of the frequency synthesizer module , and the program design of the frequency synthesizer module as well .

具体工作内容包括：接收模块、发射模块、频率合成模块核心部件梳状谱信号发生器的设计与实现，以及频率合成模块的整体方案设计。

The thesis gives the synthesis and simulation results of IP core and its modules as well . The IP core reaches an operating frequency of 127 MHz .

文中给出了整个IP核及其各模块的综合和仿真结果，IP核的最高运行时钟频率可以达到127Mhz。