AND8344/D
www.onsemi.com
14
Figure 18. Nominal V
bulk
, no load. The frequency
dropped to approximately 1.7 kHz, and primary
current was reduced to 700 mA.
Figure 19. Nominal V
bulk
, 20 W load, detail of the
output ripple
Figure 20. Nominal V
bulk
, no load, output ripple Figure 21. Nominal V
bulk
, transient respond to
change load from 4 A to 0.4 A, 50% duty cycle,
10 Hz frequency. Measured overshoot is 190 mV.
Figure 22. Nominal V
bulk
, transient respond to
change load from 4 A to 0.4 A, 50% duty cycle,
10 Hz frequency. Measured drop is 190 mV
Figure 23. SMPS in STBY mode, 265 V
AC
, 10 W
load. Primary current and drain voltage