通过采用时变调制比的方法,可以消除不对称输入电压的影响,从而获得对称正弦输出电压或输入电流。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
结果显示,当放大器的负载网络取不同参数值时,分别得到高q值的正弦输出电压和低q值的非正弦输出电压。
The results showed that the sinusoidal output voltage at high Q and non-sinusoidal output voltage at low Q were obtained respectively when the parameters of the load network got various.
实验结果表明所提出的方案简单可行,适用于纯正弦输出的电压源逆变器。
Experimental results verified that the proposed scheme has the advantage of simplicity and feasibility. It can be applied to pure sinusoidal output Voltage Source Inverter.
实验结果表明:采用了本文设计的数字化控制技术的逆变电源,可以获得稳定的正弦电压输出。
It is shown by the experimental results that the inverter power supply with digital control technologies designed by this dissertation can output steady sine voltage.
在相同电压及频率下,方波信号激励下的输出灵敏度最大,其次为正弦波,锯齿波最小。
With the same voltage and frequency, bar signal has the highest sensitivity and next the sine, the least sawtooth.
详细研究了谐振直流环节单相逆变器的输入谐振电压与逆变器输出调制电压、输出正弦电压的关系;
The paper detailed the relationship of input resonant voltage, modulation voltage and output sinusoidal voltage of single phase resonant DC link inverter(RDCLI).
实验结果表明,利用该方法设计的无差拍控制正弦波逆变器系统稳定性好、输出电压波形畸变率低,具有一定的实际应用价值。
The experimental results prove that the sine wave inverter designed by this method have good stability and high quality output voltage and can be applied in practice.
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。
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.
分析了用运算放大器组成正弦波振荡电路的起振条件和输出电压幅值的调节及选频网络的构成。
This paper is involved in the analysis of oscillation starting condition, output voltage amplitude adjustment, and frequency selection network composition of sinusoidal coave oscillation circuit.
本发明电路结构简单,输出的交流电的波形为纯正弦波,输出的电压和频率稳定,不会随输入电压和负载的变化而变化。
The circuit of the invention is simple, the wave output is pure sine wave, voltage and frequency output is stable, they do not change with input voltage and load.
本课题对一台高压高频逆变电源输出的正弦电压进行处理,将其设计成一台纳秒级高压高重复频率的脉冲电源。
This designation is to deal with the output sine wave of a high frequency and high voltage power supply, the aim is to develop a high voltage and high frequency nanosecond pulse generator.
电机传动系统大都采用变频器供电,输出的是非正弦电压、电流,其在电机中产生非正弦磁场。
The motor drive system almost all use inverter supply power, which output non-sinusoidal voltage-current and produce non-sinusoidal electromagnetic field.
仿真和实验结果表明:所提出的变换器输入电流和输出电压为正弦,谐波小且输入功率因数可控,并可实现零电压换流。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
在功率输出级采用OCL互补对称功率放大电路,并对该功放电路增加电压负反馈,使得输出的正弦电压信号平滑而稳定。
At the power output, OCL complementally and symmetrical power amplifier is adapted. The output sine voltage becomes smooth and stable by adding voltage-negative-feedback to power amplifier.
本文论述的是基于重复控制技术的单相电压型正弦逆变电源,重点是实现输出电压的高正弦度。
This paper studies a single phase voltage SPWM inverter based on repetitive control, whose key point is achieving a good sinusoidal output wave.
传感器输出的检测信号是中频的正弦电压信号,为采集和处理该信号,设计了以P89C51RD2单片机为核心的数据采集器电路。
The output signal of the sensor is the sinusoidal signal with intermediate frequency. To sample and process this signal, a data collection circuit that centers on P89C51RD2 single chip is designed.
本文采用电压反馈的闭环控制方式,设计完成了数字PID调节器,使逆变器输出稳定的正弦波。
The paper takes advantage of a single close-loop control method based on voltage feedback, and enables the inverter to produce steady sine waves by the digital PID adjuster designed.
然后运用脉冲功率技术,通过由电容器和磁开关等组成的脉冲陡化电路对正弦电压波形进行改形,最后输出纳秒级上升前沿、高重复频率的高压脉冲。
Then, transform it through the pulse sharpening circuit consisting mainly of capacitances and magnetic switches, finally outputting the high voltage and high repetition rate nanosecond pulses.
试验结果显示逆变器有很好的正弦波输出波形,快速的动态响应,优良的负载特性和高精度的输出电压。
The experiment results show that the inverter Can achieve good sinusoidal output waveform, fast dynamic response, excellent load characteristic and high precision of output voltage.
该校准仪是用于校准各种电子电压表基本误差的专用标准仪器,具有定点频率下正弦波信号输出的标准电压源。
This normalizing device is a standard instrument used to calibrate the intrinsic errors of the various kinds of electronic voltmeters.
主回路采用由18个晶闸管组成的三相零式电路,并辅以晶闸管的保护电路,通过控制可以得到低频正弦波的电压(电流)输出;
The main circuit is consisted of 18 thyristors circuit and protection circuit. With the help of control subsystem, it can get the output of low frequency voltage (current) with the shape of sine wave;
带电感变压器连接在脉宽调制电源逆变器输出端,北整合的电感与输出端的电容共同作为滤波器使用,修整输出电压的正弦波形。
The integrated inductance, in combination with the output capacitors, operates as a filter and restores the sinusoidal wave-shape of output voltage.
带电感变压器连接在脉宽调制电源逆变器输出端,北整合的电感与输出端的电容共同作为滤波器使用,修整输出电压的正弦波形。
The integrated inductance, in combination with the output capacitors, operates as a filter and restores the sinusoidal wave-shape of output voltage.
应用推荐