Performance Data and Typical Characteristic Curves
Figure 12. FM Mode Switching Cycle Waveform
(Input voltage = 115 V
AC
, full load, f
SW
= 112 kHz. Ch.1 = I
DRV
, 500 mA/div., I
DRV
= 1.53 A, Ch.2 = Drain of HV
MOSFET, 100 V/div., Ch.3 = ZCD, 5 V/div.)
Figure 13. AM Mode Switching Cycle Waveform
(Input voltage = 85 V
AC
, 0.3-A load, f
SW
= 28.2 kHz, Ch.1 = I
DRV
, 500 mA/div., I
DRV
= 1.1 A, Ch.2 = Drain of HV
MOSFET, 100 V/div., Ch.3 = ZCD, 5 V/div., Ch. 4 = VDD, 10 V/div.)
16
UCC28610EVM-474 25-W Universal Off-Line Flyback Converter
SLUU383B
–
November 2009
–
Revised May 2011
Copyright
©
2009
–
2011, Texas Instruments Incorporated
