The useful power in ac circuit also depends on the current and voltage in the circuit.
交流电路中的有用功率还取决于该电路中的电流和电压。
These connectors are used for the connection of DC Circuit or AC Circuit of the module of electronic equipments.
该插头插座可供连接电子设备内组件间的直流或交流电路。
The utility model relates to a contactor used for controlling the switching on and the switching off of an ac circuit.
本实用新型系用于控制交流电路通、断的接触器。
Purpose: it can be used as shunt and load resistor in DC or ac circuit of electric facility and electron instrument widely.
用途：可广泛用于各种电气设备和电子仪器的直流或交流电路中作分流或负载电阻等。
However, when analyzing AC circuit, it is important to consider the magnitude as well as the direction of phasor quantities.
不过，在分析交流电路时，重要的是不仅要考虑相量的幅值，还要考虑相量的方向。
Railway applications - Electric equipment for rolling stock - Part 4: electrotechnical components - Rules for AC circuit-breakers.
铁路设施。机车车辆用电气设备。第4部分：电工元件。交流断路器规则。
Often in ac circuit by air damping model time relay, it is to use the principle of air through orifices throttling to obtain delay action.
在交流电路中常采用空气阻尼型时间继电器，它是利用空气通过小孔节流的原理来获得延时动作的。
AC Milliammeter, Model J0414, is suitable for the laboratories of middle schools and polytechnic schools to measure current intensity in the AC circuit.
J 0414型交流毫安表适用于中学、中专等实验室测量交流电路中的电流强度。
The electric secondary AC circuit detection method can check secondary circuits such as the transformer and the bus differential protection of a transformer substation.
本发明可实现对变电站的变压器、母差保护等二次回路的检验。
In the fifth semester, we learned fundamental knowledge of semiconductors, AC circuit amplifier, and the switching among logic circuit, analog circuit and digital circuit.
在第五学期我们学了半导体基础知识、交流放大电路、逻辑电路、模拟电路和数字电路的转换。
This paper provides a mathematical model of real-time calculation for the simple AC circuit, and designs a programming scheme to fulfill this model in computer with Java language.
该算法利用三个不同的采样起点通过校正的方法来消除衰减分量对计算结果的影响，同时利用递推原理减少计算量，从而实现对短路电流的实时计算。
The single core armored cable in the list are only suitable for use for DC circuit. If used for AC circuit, non-magnetic material or armored by reducing magnetic loss structure must be used.
表中单芯铠装电缆仅适用于直流线路，如用于交流则必需采用非磁性材料或减少磁损耗结构的铠装。
A continuity tester injects an AC signal into the conductors of a cable to find circuit faults.
一个连续性测试器给电缆导线注入交流信号，从而找到电路故障。
High power factor at ac input can be achieved by controlling the switch of capacitor charge circuit.
通过对电容器充电回路开关管进行控制，实现交流输入端的高功率因数。
A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.
该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。
For AC voltage measurement, an RMS converter circuit or a precision rectifier circuit convert the AC signal into a DC voltage.
对于交流电压测量﹐利用有效值转换电路或精密整流器电路将交流信号转换成直流电压。
The article presents L6598 inner structure, its lead functions, unit circuit operation philosophy and its circuit in the wide range AC/DC adapter.
文中介绍了L6598内部结构、引脚功能、单元电路工作原理及其在宽范围AC/DC适配器中的应用电路。
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.
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。
Novel circuit structure and topologies family of uninterruptible AC switching power supplies with high power factor are proposed.
提出了一类新颖的不间断高功率因数交流开关电源电路结构与拓扑族。
If there is an ac potential difference between the shield and the measuring instrument, there may be capacitive currents flowing through the measuring circuit that will add interference.
如果屏蔽和测量仪器之间存在一个交流电势差，则可能有电容性电流通过测量电路，增大干扰。
This paper introduces the principle and characteristic of the air-core coil current transformer, designs AC-sampling and processing circuit, and introduces the process of software detail.
介绍了空心线圈电流互感器的工作原理和特点，设计了适于此种互感器的交流采样和处理电路，详细介绍了软件的处理过程。
This article introduced emphatically the control strategy, position detection and identification, drive technique as well as main circuit of permanent magnet Ac servo system.
重点介绍了永磁交流伺服系统的控制策略，位置检测和辨识、主电路和驱动技术等关键技术。
Purpose: Used in circuit of DC or low frequency AC.
用途：用于直流或低频交流电路中。
The resonant tank coupled to the switching circuit receives the first AC signal and generating a second AC signal for powering a load.
谐振回路耦合至开关电路，接收第一交流信号并产生第二交流信号以给负载供电。
Auxiliary signal generator (AC) is a part of many control circuit of ion trap mass spectrograph.
辅助信号发生器(简称ac)就是离子阱质谱众多控制电路中的一部分。
A scheme of bidirectional thyristor phasing trigger composed by ICs is presented, and the trigger circuit fit for AC voltage regulator of inductive load is given.
提出了一种由集成电路组成的双向晶闸管移相触发器的设计方案，给出了适合于感性负载的交流调压电源的触发电路。
It adopts SCR with large power to establish the voltage adjustment circuit, so the AC motor can be started with low voltage.
它采用大功率的SCR组成电压调节电路，这样交流电动机就可以低压起动。
The paper introduces a new kind of AC AC amplifying circuit for ultrasonic vibration cutting.
本文介绍一个用于超声振动切削的新型AC - AC放大电路。
By this algorithm, the ac harmonic components of short-circuit current can be filtered, and the accurate DC current rate of change can be obtained.
该算法可以滤去短路电流中的交流谐波分量，得到直流电流变化率的准确结果。
The principle of electromagnetic induction is to be used to detect AC living wire in a wall, the circuit is simple but reliable.
用电磁感应原理来检测墙体中带交流电的火线，其电路简单而可靠。
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