各位大侠:我要用SA7527 作一个LED DRIVER 要求如下:
1.UL&FCC(Class 2) certification
2.Input Voltage: 120Vac 60Hz
3.Output Current: 330mA(+/-5%) Constant Current
4.Short Circuit&Overload&Output Voltage&Surge Test Protection
5.Isolated Output
6.Rated Wattage:10W Nominal LED Load
7.Practical Operation Wattage:Up to 12.5W Load Without Shut down
8.Power Factor(PF):No Less Than 0.9
9.Efficiency:>85%
10.Life:>40,000 Hours
那个变压器怎么样去设计?请各位大侠帮忙
谢谢 1172431238417311.pcb
