用PI Expert设计后提示如下警告:
The primary circular mils per amp (CMA) calculation is above the recommended maximum for this power level (PO).
它提示的解决办法有一下几个:
1、Decrease the effective bobbin width (BWE) by decreasing the core/bobbin size.
2、Decrease BWE by decreasing the number of primary layers (L).
3、Increase the number of primary (NP) and secondary (NS) turns, which will force smaller wire (higher AWG) to be used.
4、Decrease the reflected output voltage (VOR), by increasing NP, which will force smaller wire (higher AWG) to be used.
5、Increase the current waveform parameter (KRP/KDP), which will increase the primary rms current (IRMS) and lower the CMA.
6、Raise the output power requirement (PO).
不明白其中的CMA是一个什么参数.
请大侠赐教!!
