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交流纹波
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  ac ripple
     Measurement of AC Ripple in Input Current of Inverter for Telecom
     通信用逆变器输入电流中交流纹波的测量
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  “交流纹波”译为未确定词的双语例句
     For a highly-stabilized symmetrical Cockcroft-Walton voltage multiplier,the alternating ripple caused by the circuit asymmetry becomes an important factor responsible for stability of DC high voltages.
     轻负载高稳定对称型Cockcroft-Walton倍压器中 ,电路非对称性引起的交流纹波已成为影响其输出直流高压稳定性的重要因素。
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     The testing results show that the waveform control pattern can be used to control the current waveform of arc welding process effectively and is especially suited for the rectification welding power with alternating current carrier wave.
     试验表明 ,该波控模式能对弧焊过程实施有效波控 ,尤其适宜于带有交流纹波成分的整流焊接电源的波控 .
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     Measurement of AC Ripple in Input Current of Inverter for Telecom
     通信用逆变器输入电流中交流纹波的测量
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  ac ripple
A degradation ofJcsmeasured in the external field with AC ripple has been observed.
      
AC ripple on the power supplies can couple noise into the ADC, resulting in degradation of dynamic performance.
      
A distinct advantage of the oscilloscope is its ability to monitor the level of ac ripple voltage riding the dc voltage.
      
For the second set of experiments, a large dc bias with a small overlapping ac ripple 1.0 MV/m was applied across the films.
      
However, the voltage response method remains susceptible to noise of frequencies higher than typical AC ripple.
      
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For a highly-stabilized symmetrical Cockcroft-Walton voltage multiplier,the alternating ripple caused by the circuit asymmetry becomes an important factor responsible for stability of DC high voltages.By using transmission line theory and linear approximation of the circuit,analytical expressions are derived for the ripple due to asymmetry of input voltages and circuit elements.The theoretical method is validated from the agreement between analytical results and measurements in a 10-stage model multiplying circuti.From...

For a highly-stabilized symmetrical Cockcroft-Walton voltage multiplier,the alternating ripple caused by the circuit asymmetry becomes an important factor responsible for stability of DC high voltages.By using transmission line theory and linear approximation of the circuit,analytical expressions are derived for the ripple due to asymmetry of input voltages and circuit elements.The theoretical method is validated from the agreement between analytical results and measurements in a 10-stage model multiplying circuti.From the obtained theoretical results,further analyses are also given to the relations between ripples and the circuit asymmetry and parameters.

轻负载高稳定对称型Cockcroft-Walton倍压器中 ,电路非对称性引起的交流纹波已成为影响其输出直流高压稳定性的重要因素。采用传输线理论 ,在线性近似条件下推导出起因于输入电压的非对称和电路元器件非对称的纹波的解析表达式。 1 0段模型电路上的实验结果验证了理论的正确性。由得到的理论结果还分析了纹波与电路非对称性和电路参数间的关系。

Harmonics of the ripple have been investigated experimentally at a self-made model Cockcroft-Walton (C-W) voltage multiplier, as a function of the circuit asymmetry and load. The results showed that the odd harmonics of the ripple was due to the circuit asymmetry and the even harmonics due to the charge-discharge process of capacitors. Under a light load condition, the fundamental harmonics was dominant compared with other harmonics, which could be considered to be the alternating ripple caused by the circuit...

Harmonics of the ripple have been investigated experimentally at a self-made model Cockcroft-Walton (C-W) voltage multiplier, as a function of the circuit asymmetry and load. The results showed that the odd harmonics of the ripple was due to the circuit asymmetry and the even harmonics due to the charge-discharge process of capacitors. Under a light load condition, the fundamental harmonics was dominant compared with other harmonics, which could be considered to be the alternating ripple caused by the circuit asymmetry in the linear circuit approximation. When the circuit was asymmetrical, asymmetry of the diode conduction could increase the odd harmonics of the ripple.

在一个自制的模型倍压器上,通过测量纹波,分析了纹波的各次谐波成分与电路非对称性和负载的关系.结果表明,纹波可以分为由电路非对称性产生的奇次谐波和电容器充放电产生的偶次谐波.轻载时奇次谐波中基波起主导作用,可以认为其是在线性近似条件下电路非对称在输出端产生的交流纹波部分。电路非对称时,随着负载电流的增大,二极管导通状况的非对称性使奇次谐波成分变大。

In order to improve the dynamic performance of the carbon dioxide arc welding and reduce spattering, a basic pattern of the real-time current waveform control is put forward. The testing results show that the waveform control pattern can be used to control the current waveform of arc welding process effectively and is especially suited for the rectification welding power with alternating current carrier wave. By this pattern and the quick dived-flow of the waveform controller, the peak current can be restrained...

In order to improve the dynamic performance of the carbon dioxide arc welding and reduce spattering, a basic pattern of the real-time current waveform control is put forward. The testing results show that the waveform control pattern can be used to control the current waveform of arc welding process effectively and is especially suited for the rectification welding power with alternating current carrier wave. By this pattern and the quick dived-flow of the waveform controller, the peak current can be restrained and the liquor-bridge can be softly broken and the droplet get into the molten pool unimpactly. The spatting in the beginning instant of the short-circuiting and the impact of the arc to the molten pool in the instant of the arc re-triggering can be weakened. In result, the waveform of the welding current is optimized, the dynamic performance of the welding process is improved and the spatting is restrained effectively.

针对二氧化碳弧焊熔滴短路过渡过程动特性差、飞溅大的特点 ,对一种关联式电流波形智能控制器的波控模式进行了研究 ,提出了实时控制熔滴过渡过程电流波形的波控基本模式 .试验表明 ,该波控模式能对弧焊过程实施有效波控 ,尤其适宜于带有交流纹波成分的整流焊接电源的波控 .采用该控制模式 ,通过波控器的快速分流作用 ,可抑制弧焊短路初期、短路未期的电流增长和燃弧初期的电弧冲击 ,能够优化熔滴过渡过程的电流波形 ,使液桥柔顺破断、熔滴无冲击地进入熔池 ,从而改善了二氧化碳在弧焊过程中的动特性 ,抑制了焊接飞溅 .

 
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