Linear Technology DC2235A Demo Manual page 3

QUICK START PROCEDURE
16. Slowly increase the load on V
serve the output ripple and output voltage on V
+
17. Set the load on V
OUT
18. Slowly increase the load on V
observe the output ripple and output voltage on V
–
19. Set the load on V
OUT
20. Change JP3 MODE jumper from Burst Mode operation to
the constant-frequency mode and repeat steps 16 to 19.
21. Change JP4 FREQ jumper from 500kHz to 200kHz then
slowly increase the load on V
observe the output ripple and output voltage on V
+
to 100mA and ob-
OUT
to 0mA.
–
to –100mA and
OUT
to 0mA.
+
from 0mA to 50mA and
OUT
OUT
Figure 1. Proper Measurement Equipment Setup for DC2235A
DEMO MANUAL DC2235A
22. Set the load on V
+
.
OUT
23. Slowly increase the load on V
serve the output ripple and output voltage on V
24. Set the load on V
–
.
OUT
25. Change JP4 FREQ jumper from 200kHz to 50kHz. Slowly
increase the load on V
the output ripple and output voltage on V
26. Set the load on V
27. Slowly increase the load on V
serve the output ripple and output voltage on V
+
.
28. Set the load on V
29. Turn off the loads and supply when done.
+
to 0mA.
OUT
–
to –50mA and ob-
OUT
–
to 0mA.
OUT
+
from 0mA to 10mA and observe
OUT
+
OUT
+
to 0mA.
OUT
–
to -10mA and ob-
OUT
–
to 0mA.
OUT
–
.
OUT
.
–
.
OUT
dc2235af
3