In common hard switching circuit, high voltage spike usually could be produced during switch transition process because of the effect of transformer leakage inductance and parasitic capacitor.
在常规的硬开关电路中，由于变压器漏感及寄生电容的影响，常常在开关转换瞬间会产生很高的电压尖峰。
2
The intensity modulation in analog scope let you distinguish 100hz ripple, switching ripple, and spike.
模拟示波器的亮度调节可以让你区分100hz的纹波﹐开关纹波及尖峰。
3
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.