The second order harmonic output matching networks are optimized by load-pull method.
并利用负载牵引法对二次谐波匹配网络进行了优化。
A second consideration is that a useful synth VCO is expected to output several different waveforms, so that the synth player has harmonic starting points for creating a given sound.
第二个考虑因素就是要求有效的合成器VCO能产生多种不同的波形,这样一来的话合成播放器对产生某一给定的声音都有相应的和声始点。
The switch frequency is increased and the output harmonic is decreased while the overcurrent protection is ensured.
保证过电流保护的同时,还提高了开关频率,减小了输出谐波。
A new inverter output filter is presented. It can reduce efficiently the output voltage and current switching harmonic.
提出了一种新型三相逆变器输出滤波器,它能有效地减少输出电压和电流中的开关谐波分量。
The green-emitting laser diode offers a number of compelling advantages compared to an equivalent green-output second harmonic generation (SHG) device.
绿色发光二极管激光器提供了绝对优势相比,同等绿色输出二次谐波产生(倍频)设备。
The output harmonic feature of the multi-modular converters with STS-SVM is researched and analyzed through simulation and experiment, compared with the conventional SVM and CPS-SPWM.
通过仿真和实验,研究了STS - SVM组合变流器的输出频谱特性,并与常规s VM技术和载波相移spwm技术进行了比较分析。
Experiment result showed, the topology can make the device get to high Power Factor (PF), low Total Harmonic Distortion (THD) of input current, low ripple of output voltage, and high efficiency.
实验结果表明,应用该电路拓扑的实验装置,其功率因数较高,输入电流的总谐波畸变较低,输出电压纹波小,而且整个装置的效率也比较高。
By properly choosing the control gains, the output tends to a standstill while the other parts of the system oscillate in such a way as to counteract the harmonic disturbance.
通过选择合适的控制增益,即可在系统的其它部分仍存在振荡的情况下,可以消除谐波干扰,使系统的输出趋于收敛,达到稳定。
Experiment results showed that the correction device of power factor could realize high power factor, low harmonic distortion and low ripple of output voltage.
通过实验结果表明,单级功率因数校正装置可以实现较高的功率因数、较低的总谐波畸变,而且输出电压纹波小。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
并采用优化的SAPWM调制信号,提高了直流电压的利用率,并能有效地抑制逆变器输出的谐波电流。
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.
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。
An equivalent area algorithm of harmonic injection is proposed, a realization method of automatic regulating output voltage is presented at the same time.
提出了面积等效谐波注入算法,同时提出了基于该算法的输出电压自动调整实现方法。
As one of inverters, Sinusoidal Pulse Width Modulation (SPWM) inverters can achieve low total harmonic distortion (THD) output wave.
正弦脉宽调制(SPWM)逆变器作为逆变器的一种,可输出谐波含量小的正弦波形。
Using the method of firing Angle prediction, steady sinusoidal output voltage with low harmonic components can be generated.
通过开关角预置方法,叠加出了谐波含量低的稳压正弦波输出。
It can achieve a fixed output of DC voltage in the universal input range of ac 80 ~ 265 V. It owns the advantages of high efficiency, low total harmonic distortion, PF near to 1.
该方案能在80 ~ 265V宽输入电压范围内得到稳定直流电压输出,具有效率高、总谐波畸变率低、功率因数接近为1等特点。
In the design of voltage PWM inverter, the existence of dead-time will arouse the in-crease of output harmonic, the pulsation of the motor torque, and even the oscillation of the motor.
设计电压型PW M变频器时死区时间的设定会造成输出谐波增加、负载电动机转矩脉动,严重时甚至引起电动机震荡。
Because of the ripple of the DC power supply, the output harmonic amplitude of the voltage controlled SPWM inverter is higher.
由于直流供电电源纹波的影响,电压控制SPWM逆变电路的输出谐波分量幅值较大。
The method of optimal dimension synthesis for path generation with prescribed timing by using harmonic characteristic parameters of the planar linkage's output properties is developed in this paper.
研究了利用机构输出特性的谐波特征参数进行带有预定时标连杆轨迹优化尺度综合的方法。
This paper introduced the theory of harmonic gear and one reducing transmission from the middle of motor and reducer , which has the same shaft for output and input and a simple structure .
介绍了谐波齿轮传动的工作原理,输入与输出同轴、结构简单、且输出在电机与减速器中间的减速传动。
The design which combines a flexible wheel and output shaft into a integrative part in a plastic harmonic transmission is introduced. The feasibility of this method is validated.
介绍了将谐波传动中柔轮与输出轴做成整体塑料件的设计方法,并验证了其可行性。
It has good real-time performance and is easy of digital control. The triangular wave comparison mode is used in output control to decrease output harmonic effectively.
且易于数字控制,实时性好,同时输出控制采用三角波比较方式,有效减小了输出的谐波。
The expressions of the Fourior series corresponding to these waves were derived and it is possible to analyse the harmonic contents of PWM inverter output in theory.
较严格的数学推导过程,为理论上对逆变器输出的谐波成分计算分析提供了依据。
Its 10 amplifier channels provide 300 watts total output at 0.1 percent total harmonic distortion.
其10放大器通道提供300瓦的百分之零点一的总谐波失真总产出。
Also, the harmonic filter is a low pass filter having a frequency cut-off point that attenuates first order harmonics of the output signal.
此外,谐波滤波器是具有频率截止点的低通滤波器,该低通滤波器削弱输出信号的一次谐波。
Harmonic content of the input currents depends on the rectifier voltage gain m defined as ratio of the output voltage and the input line voltage as well as the employed control.
输入电流的谐波量有赖于整流器的电压获取值m,即输出电压和输入电压的比值,也有赖于操作人员的控制。
This paper analyzes the influence of the error between the calculated results by selective harmonic elimination and the digit_controlled results on the output of inverter.
针对数字控制技术的特点,分析了在选择性谐波消除法的理论计算结果与实际开关角数字控制结果出现偏差时,对逆变器输出电压谐波含量的影响。
Realize multi-rate billing, 2-31 harmonic analysis, parameter alarm, switch input and output, LCD display, human-computer interaction and RS485 communication.
仪表实现了复费率电能计量、2-31次谐波分析、参量报警、开关量输入输出、液晶显示、人机交互和RS485数据通信功能。
Frequency capacitive dividers are used to measure the output power frequency test equipment peak, RMS, Harmonic, also doubles as a coupling capacitor.
工频试验变压器主要用于测量工频试验设备的输出峰值、有效值、谐波,亦可兼作耦合电容器。
Frequency capacitive dividers are used to measure the output power frequency test equipment peak, RMS, Harmonic, also doubles as a coupling capacitor.
工频试验变压器主要用于测量工频试验设备的输出峰值、有效值、谐波,亦可兼作耦合电容器。
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