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。
It describes a parallel analysis technique of short circuit current calculation for large scale united power syStem.
描述了一种大规模联合电力系统短路电流计算的并行处理技术。
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground.
请勿接触任何会为通向被测电路的共用侧或电源地的电流提供通路的物体。
From the stability formula of the base circuit, the stability expression within constant current source and assistant power is discussed.
从基本电路的稳定度公式出发，讨论了采用恒流源负载和辅助电源的稳定度表达式。
As the heart of the power factor correction circuit, the gain modulator gets a high power factor by controlling the input current.
增益调制器作为功率因数校正电路的核心电路，通过控制输入电流来得到一个高的功率因数。
A class of compensating current calculating circuit based on instantaneous power theory is presented.
介绍一类基于瞬时功率理论的实时无功电流计算电路。
The paper introduces the principle of switch power which is composed by current control type PMW UC3842 and analyzes the shortage of protective circuit and proposes an improving idea.
本文介绍了以电流控制型脉宽调制芯片uc 3842构成的开关电源的原理，分析了其保护电路的缺陷，并提出了一种改进的思路。
A sensitive, stable and low power consumption magnetic sensor is constructed using a CMOS multivibrator circuit, in which a sharp pulse train current is applied to the treated amorphous ribbon.
同时利用CMOS多谐振荡电路产生窄脉冲电流序列对前面处理过的非晶带进行激励，制作成灵敏度高、稳定性好、功耗低的弱磁场传感器。
Current, electromotive force, or power supplied to an electric circuit, network, or device.
电流，电能，电力供给电路、网络或设备的电流、电动力量或电力。
To protect power switches, soft-starting circuit was designed to overcome the surge current.
同时采用软启动电路防止浪涌电流，保护功率开关管。
The overall hardware design scheme is performed, such as DSP 3. 3V power, voltage and current sampling module, IGBT driving circuit, I/O signal processor, fault detection module and COM circuit etc.
对系统硬件设计的DSP 3．3V电源的获取、电压电流采样模块、IGBT驱动、一般I／O信号的处理、故障监测和串口通信电路进行了研究分析。
We obtained PTAT and CTAT current generator with low power consumption and high PSRR, which in a simple circuit structure.
用较简单的电路形式实现了低功耗和高电源抑制比的PTAT电流产生电路和CTAT电流产生电路。
A current sensing circuit for power management IC is proposed, using high voltage power devices.
利用高压集成功率集成器件，设计了一种用于电源管理IC的电流采样电路。
According to the equivalent circuit model of non-linear load, a detecting approach of harmonic current in single-phase circuit based on fast iterative algorithm in active power filter is proposed.
根据非线性负载的等效电路模型，提出了一种基于快速跟踪算法的有源电力滤波器单相电路谐波电流检测方法。
A low power design in system level using current steering architecture, which can be applied to the system of CMOS mixed signal circuit widely, is presented.
提出了一种系统级电流使能控制结构，可广泛地应用在CMOS数模混合电路中，用于实现系统级的低功耗设计。
The measurement principle of the average power for non sinusoidal period current circuit is introduced in this paper.
介绍了非正弦周期电流电路的平均功率测量原理。
In this paper, by the use of dual-current control mode and intelligent UC3842 chip as the core, a single-chip switching power supply circuit are presented.
本文使用双电流控制模式，以智能芯片uc 3842为核心，设计了单片开关电源的实用电路。
This article expatiate the reasons and influence of the short circuit, and introduces common methods about how to limit short circuit current in several typical power substations.
本文阐述了短路电流产生的原因及其后果，同时介绍几种变电所及电站中限制短路电流的常用方法。
The system is composed of stable current source, light power feedback, protection circuit, and temperature controller.
该系统包括恒流源、光功率反馈、保护电路、温度控制等部分。
Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established.
建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；
The principle of active power factor correction circuit operated in critical inductor current mode is analyzed in this paper in detail.
文中详细分析了电感电流准连续模式的有源功率因数预校正电路的工作原理。
This article explains power selection, adjustment and protection of control transformer and calculation method on secondary short circuit current.
阐述了控制变压器功率选择、校验、保护及二次短路电流的计算方法。
Curriculum design of power system short-circuit current calculation, the power of professional people who are very helpful.
电力系统课程设计之短路电流的计算，对电力专业的人有很大帮助。
Soft-starter can limit the start current and torque of the induction-motor, reduce the influence to the power circuit in the starting process, and prolong electrical equipments' working life.
软启动器可以限制感应电机的起动电流及起动转矩，减少了电机起动过程中对电网的冲击，延长了电气设备和机械结构的使用寿命。
The reliability of power supply is improved by using over-current and over-voltage protecting circuit.
设计的过流、过压保护电路，有效地提高了电源的可靠性。
The system consists of the AC input stage, single phase PFC, main inverter, output low-pass filter, auxiliary power supply, and load current sharing circuit, etc.
整个电源由输入电路、功率因数校正器、主逆变器、输出滤波电路、辅助电源、均流电路等部分组成。
The temperature control system based on DS18B20 adopts C8051F020 and its external interface circuit to carry out the measurement control for direct current manostat power temperature.
基于DS18B20的温度控制系统，利用C8051F 020及其外围接口电路对直流稳压电源温度进行测量控制。
The basic characteristics of PS21963 intelligent power model is displayed in brief, and a circuit design about platform driving and electric current sampling is put forward.
介绍了基于PS 21963平台用无刷直流电动机集成化驱动及电流采样电路设计方案，进行了相应的实验研究。
The basic characteristics of PS21963 intelligent power model is displayed in brief, and a circuit design about platform driving and electric current sampling is put forward.
介绍了基于PS 21963平台用无刷直流电动机集成化驱动及电流采样电路设计方案，进行了相应的实验研究。
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