By comparing the heating effect of an unknown AC signal to that from a known DC reference, metrologists can determine the RMS AC quantity (voltage or current) in terms of the DC quantity.
为了对比一个已知直流参考的未知交流信号热效应,计量人员可以确定在一段时间内直流的交流有效值(电压或电流)。
The reference signal in this control approach is obtained by detecting both source current and load voltage.
该控制方式的指令信号通过同时检测电源电流和负载电压得到。
For PWM current control, the maximum output current is determined by the users selection of a reference voltage and sensing resistor.
对于PWM电流控制,最大输出电流是由用户选择参考电压和感应电阻决定。
An algorithm used to analyse the leakage current and the reference voltage simultaneously in frequency domain is also provided.
给出了一种能够同时对泄漏电流和参考电压进行频域分析的算法。
Current Summing is the basic method to realize low-voltage reference which is different from that of conventional voltage mode.
不同于常规电压求和带隙基准,电流求和是实现低压基准的主要方法。
The problem of neutral-point balance is resolved by changing the amplitude of current reference according to the voltage error of two capacitors.
通过两输出电容电压的偏差改变电流参考给定来实现整流器输出中点平衡。
MOA; valve piece; resistive current; infrared detection; frequency reference voltage.
氧化物避雷器;阀片;阻性电流;红外检测;工频参考电压。
The schematics includes four parts: bandgap reference voltage and reference current, 2.7V and 1.8V regulator, over-load protection , Low Battery Detection (LBD) .
其原理包括参考电压电流电路,2.7V及1.8V电压调整电路,过流保护电路以及低压检测电路四个部分。
It consists of a digital controller, SRAM for display data memory, a DC-DC voltage converter, reference current generators, a pre-charge voltage generator, 64 common drivers, and 132 segment drivers.
芯片内部主要包括数字控制器,显示数据存取器,DC - DC电压转换器,参考电流产生器,电压预充电路产生器,64个行驱动电路和132个列驱动电路。
A low voltage current mode bandgap voltage reference circuit with a novel start-up circuit is designed.
介绍了一种低压电流模带隙电压基准电路,并提出了一种新颖的启动电路结构。
Bias circuit according to the reference voltage to bias the first stage circuit and the current compensation circuit, and set the bias current compensation circuit.
偏压电路依据参考电压来偏压第一级电路与电流补偿电路,并设定电流补偿电路的偏压。
MSP430F449 has abundant internal resource, but itself 12 b A/DC negative pole reference voltage can′t be lower than 0V. It has brought the difficulty in measuring alternating current signal.
MSP430F449单片机内部资源丰富,但是他本身自带的12位A/DC参考电压中的负极最低不能小于0V电压,对于交流信号的测量带来了困难。
A high-precision CMOS current reference circuit is proposed for using in low-dropout (LDO) voltage regulators with low power.
设计了一种新型的用于低功耗LDO线性稳压器的CMOS高精度参考电流源。
In the control of voltage source PWM rectifier, direct current control and dual close loop control structure ind-q synchronous reference frame are widely adopted.
在电压型PWM整流器的控制中,广泛采用在同步旋转坐标系下的直接电流控制方法和双闭环控制结构。
Decoupled control structure consisting of current feedback and voltage feed-forward is adopted in the inner current control loop which can track the reference current quickly.
内环电流控制器采用电流反馈和电压前馈的解耦控制策略,实现电流的快速跟踪控制;
Reference is the key part of ADC, not only providing the bias voltage and current for the system but also playing the part of the compared voltage and subtracted voltage.
基准源作为其中关键模块之一,不仅需要为系统提供精准的偏置电压和偏置电流,差分基准源还将为其提供比较电平和残差电压,它的性能将直接影响到系统指标。
Bandgap reference source is an important unit in integrated circuits, which supplied reference voltage or current independent of temperature and supply voltage.
带隙基准源是集成电路中的重要单元,输出不随温度、电源电压变化的基准电压或电流。
Test results show that the deadbeat SVPWM control algorithm can effectively track the grid voltage and reference current.
试验结果表明,无差拍SVPWM的控制算法可有效跟踪电网电压和参考电流。
The task of AD conversion gets the value of current and voltage, so as to compare with the reference value set in processing parameters.
AD任务用于采集电池化成时的电流电压值,用于和工艺文件给定参数比较。
Each module is controlled by voltage current two closed loops. The common voltage loop controls system output voltage & frequency, and generates a common reference current signal.
三台航空静止变流器模块均为电压、电流双环控制,通过公用电压调节器稳定并联系统的输出电压及频率,同时产生统一的模块电流给定信号。
Receiving the third signal and based on a reference voltage, the switching circuit controls the pulse wave width of the switching signal so as to adjust output current of the power converter.
切换电路接收第三讯号并依据一参考电压,以控制切换讯号的脉波宽度,所以可调整功率转换器的输出电流。
It is used for developing the reliability study of the high voltage current transformer and supplying the basis and reference to the designer, manufacturer, tester and repairer.
用以开创高压电流互感器可靠性的研究,为高压电流互感器的可靠性设计、制造、试验与进行维护提供依据与参考。
Design a bandgap voltage reference circuit and a voltage-modifying circuit to provide precise voltage and current reference for the referred ADC.
设计了基准电压源和电压微调电路,为adc提供参考电压和电流,而且能进行一定范围内的微调。
Type of circuit Breaker, pole number, rated current of tripping device, reference temperature of ambient air mode of connection, kind of accessories and their working voltage ratings.
断路器型号、级数、脱扣器额定电流、周围空气参考温度、接线方式、附件种类和附件额定工作电压。
The theory calculation of double network t reference data, based on the kirchhoff equation of electric voltage and current to get t reference data through algebra calculation.
双口网络t参数的理论计算,是通过建立基尔霍夫电压和电流方程,经过代数运算求出t参数。
A novel under-voltage lockout circuit is proposed which could generate reference voltage and bias current itself, and could stabilize lockout threshold voltage and hysteresis quality.
提出了一种能够自产生基准电压和偏置电流,并且锁定阈值电压和迟滞量稳定的新型欠压锁定电路。
By digital adjustment with high precision on the DC bias of reference sine wave, the DC bias contained in inverter output voltage can be adjusted to restrain DC circulating current.
通过对逆变器基准正弦波直流分量的高精度数字调节,相应调节逆变器输出电压直流分量以抑制直流环流。
It compensates for the temperature characteristics of the resistor and the threshold voltage VTH in such a way that the reference current has small temperature dependence.
主要利用电阻的温度系数与阈值电压VTH温度系数相同的特性实现温度补偿原理。
The closed - loop control of voltage and current differential has being used to depress the current oscillation, and this provides some reference for designing and manufacturing VVVF products.
采用电压和电流微分闭环控制,能有效地抑制电流振荡,为VVVF设计和制造提供了参考。
It is obvious that piecewise compensation current could significantly improve temperature characteristics of the voltage reference source.
分段补偿电流对电压基准源的温度特性提升效果明显。
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