...源和GND 之间置一滤波电容此滤波电容需特别注意,因为此电容 在低频具有较低的阻抗,而在高频时它却有杂散电感(Stray inductance) 的存在。滤波电容的接脚愈短愈好。
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Reduced inductance and stray capacitance 减少电感量和杂散电容量
To consider the circuit parasitic parameters, the circuit stray inductance has serious influence upon the turn-off characterristics of IGBTs, including turn-off voltage spikes and transient time.
由于实际电路并非理想,而是具有杂散参数,其中杂散电感对IGBT开关特性造成极大的影响,主要包括IGBT关断电压尖峰和过渡时间等。
参考来源 - 大功率多电平逆变器寄生参数对电路性能影响和抑制的分析与研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Image planes minimize noise caused by currents switching through stray inductance, help control noise caused by crosstalk and reflections.
良好的镜像层设计可以降低杂散电感引起的噪声,有助于控制串扰、反射和电磁干扰。
In large production converters, due to the stray inductance, the switching transient spike is usually beyond the voltage allowed by the device, which can destroy the converter.
在大功率风电变换器中,由于杂散电感的存在,器件在关断过程中往往会产生超出允许范围的瞬态尖峰值,从而导致其失效和损坏。
The calculation accuracy depends on the accuracy of the exponential wave generator, which is associated with the accuracies of resistor and capacitor and the stray inductance in the generator circuit.
计算的准确度取决于指数波发生器的准确度,而后者和电阻、电容的准确度和回路的杂散电感有关。
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