本文提出一种能够适应电源纹波的电压电压控制SPWM电路并将其应用于实际系统，取得了较好的效果。
In this paper, the voltage voltage controlled SPWM adapted to the ripple of the DC power supply is presented and is applied in the practical inverter with satisfactory results.
提出了一种基于三相电压型PWM逆变器的电压电流双闭环控制方法。
This paper puts forward a voltage and current double closed-loop controlling method based on three-phase voltage source PWM inverter.
从低电压电源产生高电压的装置。
A device for producing a high voltage from a low - voltage source.
具有良好的双屏蔽效果，可防止强电压对弱电压电流信号的干扰。
It has good screen effect, preventing from strong current disturbing weak current.
本文介绍电压逆变器的原理，分析带上磁滞同步电动机这一负载后逆变器输出电压电流波形畸变的原因。
It introduces the principle of voltage inverter, analyzed the reason of distortion of output voltage and current wave form, as it is loaded with hysteresis synchronous motor.
逆变器瞬时电压PID控制与电压电流双环控制相比，在电路结构、成本等方面更具优越性。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
在较宽范围的电压电平和正负电压极性上进行了空气放电。
The air discharges occurred at wide-broad voltage levels and positive and negative polarities.
根据长电弧电压电流波形，建立了电压方波电弧的理想电压电流转移特性曲线和对应的电弧等效模型。
According to the voltage and current waveforms of arc, an ideal voltage current transform characteristic curve and an equivalent circuit representing for long arc have been described in this paper.
尤其对发电机、变压器、高压电动机、电压互感器、开关、电容式电压互感器、电流互感器等一次设备有深入的了解。
In particular, the generators, transformers, high voltage motors, voltage transformers, switches, CVT, a current transformer and other equipment have an in-depth understanding.
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。
The schematics includes four parts: bandgap reference voltage and reference current, 2.7V and 1.8V regulator, over-load protection , Low Battery Detection (LBD) .
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式，电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
由于声表面波压电效应产生的电压信号非常微弱，一般放大不能分辨出信号电压和噪声电压。
Generally, because the output voltage signal is very weak, the signal voltage and the noise voltage can't be distinguished.
此直流电压经过LM 7805的稳压和C3的滤波便在稳压电源的输出端产生了精度高、稳定度好的直流输出电压。
The dc voltage after LM7805 on voltage stability and C3 filtering was manostat an output terminal of the produced high precision, stability good dc output voltage.
如果输出电压小于预定的电压电平，则开关电路部分将增强的控制信号传输到调节电路。
If the output voltage is less than the predetermined voltage level, the switching circuit portion transmits an enhanced control signal to the regulation circuit.
所述第一上拉电阻单元向所述第一节点提供电源电压，由此确定在所述第一节点上的初始上拉码或电压电平。
The first pull-up resistance unit supplies a supply voltage to the first node, thereby determining an initial pull-up code or a voltage level on the first node.
电容式电压互感器是广泛应用在国内外高压电网中的一种用以进行电能计量、电压丈量和继电保护的信号取样装置。
CVT is a signal sampling device which is widely used to carry out an energy metering, measuring voltage and relay protection in high-voltage power network at home and abroad.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
在稳压电路中，作为电压基准的稳压二极管，随着温度的变化，其稳定电压值亦会发生相应的变化。
In the voltage regulator circuit, the zener diode which ACTS as the voltage datum, along with the temperature change, its regulated voltage value also can have the corresponding change.
如果输出电压大于预定的电压电平，则跨导放大器产生使过电压标志置位的电流。
If the output voltage is less than the predetermined voltage level, a transconductance amplifier generates a current that sets an overload flag.
低电压电路（即使它们是低电压）必须和保护地连接，这样危险电压才能被检测出来。
The low voltage circuit (even with low voltage on it) shall also be connected with protective earth, thus the dangerous voltage can be detected.
举例来说，在EPROM和快闪存储器电路中使用的编程电压电平高于存储器电路中通常使用的电压。
For example, program voltage levels used in EPROM and flash memory circuits are higher than the voltages normally used in memory circuits.
最后，所述集成电路包括一第一电压电平控制器，所述第一电压电平控制器设置成在所述第一及至少第二电流馈电电路上分离对所述npn晶体管进行编程所需的电压。
Finally the integrated circuit has a first voltage level controller provided to split the voltage needed to program the NPN-transistor over the first and at least second current feeding circuit.
参考电压产生单元用以提供多个电压电平。
The reference voltage generation unit provides a plurality of voltage levels.
KP4003 A高压电源供应器是利用高压变压器将工频电压升压到所须电压，供不同静电消除产品使用。
KP4003A high voltage power supply is the use of high-voltage transformer to power frequency voltage boost to the required voltage for different static elimination product.
以及利用偏移阈电压电平改变读取电压，以使用改变的读取电压读取用户数据。
A read voltage is changed by the shifted threshold voltage level to read user data using the changed read voltage.
层状压电压磁弹性材料的空间轴对称问题：在柱坐标下，建立了横观各向同性压电压磁弹性材料空间轴对称问题的状态变量方程。
Axisymmetric problem: The state vector equation of transversely isotropic axisymmetric space magneto-electro-elastic media is established in a cylindrical coordinate system.
层状压电压磁弹性材料的空间轴对称问题：在柱坐标下，建立了横观各向同性压电压磁弹性材料空间轴对称问题的状态变量方程。
Axisymmetric problem: The state vector equation of transversely isotropic axisymmetric space magneto-electro-elastic media is established in a cylindrical coordinate system.
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