数字集成电路测试内容包括逻辑功能测试、直流参数测试和交流参数测试。
Digital IC test content includes logic functional test, test of DC parameters and test of AC parameters.
最大正向整流电流该参数与灯功率有关，所选二极管的额定电流值至少应是交流母线中峰值电流的3倍以上。
Biggest positive the parameters associated with the lamp power rectifier current, the rated current value of the selected diode should be a peak current in ac bus at least more than 3 times.
在连接交流电源之前，请验证交流电压、相位和频率是否与控制装置外壳门参数板上的相应数据相同。
Verify ac line voltage phase and frequency with the controller data plate on the enclosure door prior to connecting ac power.
论述了交流调谐滤波器的工作原理和固有缺点，说明滤波器参数变化所引起的失谐是导致滤波性能恶化的主要原因。
The principle and the inherent demerits of tuned AC filter are discussed, the detuning due to variation of filter parameters is the main cause of deterioration of filtering performance.
系统采用软件方式实时计算交流传动系统的运行参数，包括变压器、四象限整流器、直流中间回路、逆变器、电机及负载。
Its software is designed to calculate the running parameters of the AC drive system, including transformer, quadrant rectifier, DC circuit, inverter, AC motor and train load.
介绍了交流接触器电气参数自动化测试装置的测试原理和测试方法，并给出了相应的测试结果。
This paper describes the design and principle of automatic testing device for electrical parameters of AC contactor. The testing result is given.
数字式工频交流电参数多用表以i2c总线数字式电位器ad5242为核心，其采样算法有一点、两点及多点。
I2C bus digital potentiometer AD5242 was used as core of digital alternating current parameter multi-function meter, it has a point, two point and multiple point sampling arithmetic.
交流调速中直接转矩控制具有坐标变换运算量小和受电机参数变化影响小的特点。
Direct Torque Control (DTC) has the advantages of less reference frame commutation-computation and less influence by motor parameter variations in AC drives system.
交流采样测量装置作为电网电测量参数的在线测量仪器，具有较好的准确度和稳定性。
Ac sampling measurement unit has better accuracy and stability as the online measuring instrument of the electrical parameters of power network.
感应电机高性能交流调速方法中，电机参数的准确性严重影响着电机控制系统的控制品质。
The precise motor parameters affect the quality of the motor control system seriously in high performance ac drives of induction machine.
在最佳的磁场参数作用下，无论是直流磁场还是交流磁场，堆焊层中硬质相细小且成“六角形”分布，此时堆焊层金属的硬度和磨损量均达到最佳状态。
Regardless of DC or AC magnetic field, the hard phase in weld metal overlay is fine and distributed "the hexagon" in optimum parameters, then hardness and wear extent in weld metal overlay are higher.
介绍交流变频调速技术在龙门刨床电气改造中的应用和总体改造方案及有关参数的设置。
The paper introduces the application, main alteration plan and the setting of relational parameters of technique of alternating current frequency conversion in Longmen planer′s electrical alteration.
本文讨论了直流输电用交流滤波器的选型和参数的优化。
Selection of the type of AC filters used in HVDC Projects and optimization of their parameters are discussed.
论述了以数字控制器DMC300A为核心的数字式交流伺服系统的硬件和软件设计，对设计过程中所涉及到的重要参数给出了设定方法。
The software and hardware of a digital AC servo system using a digital controller DMC300A as the control center is designed. This method to obtain some important parameters is proposed.
介绍了铁合金电炉单片机电力参数的交流采样方法。
It introduces the methods of alternating current sampling for the power parameter of sing chip computer in ferroalloys furnace.
目前，交流电力测功机是进行发动机性能试验的重要装置，其优点在于试验条件容易控制，参数便于采集处理，测量精度较高。
AC electrical dynamometer is an important device for engine test with easy-controlled testing conditions, easy-collected and managed parameters as well as high measuring precision.
击穿破坏电压是交流瓷介电容器最主要的技术参数，也是最难解决的技术难题。
Breakdown voltage is not only a key characteristic of ac ceramic capacitors, but also the most difficult technical barrier.
本文随后对交流滤波器参数整定计算进行了研究。
The following chapter has a thorough research on the parameter calculation of ac filters.
交流在热通道设计中如何合理选择热通道宽度、风口布置、玻璃种类三个关键性参数的设计经验。
The design experience of how to choose three key parameters: the width of thermal channel, the layout of inlet and outlet and the type of glass is discussed.
复合材料交流电性能参数随频率的变化规律表明活化炭黑在聚丙烯基体中已形成导电网络。
The variation of ac electrical properties as a function of frequency shows that the conduction network of carbon black has been formed in the composites.
以直动式B系列交流接触器为例，就其结构的动态特征对设计参数改变的灵敏程度进行分析。
The paper discusses the dynamical characteristic of the B-contactor structure, which is a primary analysis and study of the sensitivity of the design parameter variance.
在计算电缆群载流量时，交流电阻是一个重要的参数，其中邻近效应是计算交流电阻的一部分。
Ac resistance of cable conductor is an important factor to calculate the ampacity of cable bundles, and proximity effect factor is an important parameter to affect ac resistance.
在交流系统受到扰动后它通过跟踪交流系统某些参数的变化来调节直流输送的有功功率，从而达到阻尼整个系统功率振荡的目的。
Following up the change of some parameters in ac systems, it can regulate the active power transmitted by DC link and damp power oscillation in systems.
此测量仪也可测量容量相当的其它交流电动机的电参数。
The test meter also can be used to test electric parameters of other alternatingmotors which has corresponding capacities.
内置整流器和电压调节器的汽车交流发电机，其建压转速是一项重要的性能参数。
The speed of voltage buildup is an important performance parameter for the automotive alternator.
它的主要思想就是在一个周期内用若干个交流信号瞬时值描述该交流信号波形，并计算出有效值及其它有关参数。
Its main ideas are that the AC waves are described through some AC instantaneous values in a period, and then RMS values and other concerned parameters are worked out.
该方法不仅能够同时诊断元件的硬故障和参数偏移故障，而且能够同时运用于直流测试和交流测试。
The presented approach can not only diagnose both catastrophic faults and parametric faults, but also can be applied for both DC test and ac test.
对大规模交直流网络下的高压直流控制保护系统进行参数优化设计，是保证灵活交流输电系统暂态性和稳定性良好的重要手段。
The optimal design of HVDC control and protection parameters in the case of large-scale ac and DC power system network is a valid measure to ensure achieving good transient and stable performance.
对大规模交直流网络下的高压直流控制保护系统进行参数优化设计，是保证灵活交流输电系统暂态性和稳定性良好的重要手段。
The optimal design of HVDC control and protection parameters in the case of large-scale ac and DC power system network is a valid measure to ensure achieving good transient and stable performance.
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