0-1
500-700 Ω
DPFM
5650
0.151
2
400-500 Ω
DPFM
4330
0.151
3-4
200-400 Ω
DPFM
1690
0.151
5-6
120-200 Ω
DPWM
1000
0.151
7-
??-120 Ω
DPWM
1000
0.192
The above are the specific parameters of the design example of the flyback power (5V, 1 A) with primary feedback.