Performance Data and Typical Characteristic Curves
Figure 14. GM Mode Switching Cycle Waveform
(Input voltage = 85 V
AC
, 0-A load, f
SW
= 28 kHz, Ch.1 = I
DRV
, 500 mA/div., I
DRV
= 440 mA, Ch.2 = Drain of HV
MOSFET, 100 V/div., Ch.3 = ZCD, 5 V/div., Ch. 4 = VDD, 10 V/div.)
Figure 15. Ripple on VGG and VDD During Green Mode Operation
(Ch.3 = VGG, AC coupled, 2 V/div., Ch.4 = VDD, AC coupled, 200 mV/div.)
17
SLUU383B
–
November 2009
–
Revised May 2011
UCC28610EVM-474 25-W Universal Off-Line Flyback Converter
Copyright
©
2009
–
2011, Texas Instruments Incorporated
