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Linear Technology DC1816B Demo Manual page 4

Offline isolated flyback led driver with pfc
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DEMO MANUAL DC1816B
Quick start proceDure
Output Voltage and Switch Node Voltage During Output Open
IC V
IN
20V/DIV
V
OUT
20V/DIV
V
SW
200V/DIV
Figure 9. V
Output Current and Switch Node Voltage During Output Short
IC V
IN
20V/DIV
I
OUT
5A/DIV
V
SW
200V/DIV
Figure 11. V
4
500ms/DIV
DC1816B F09
= 120VAC
IN
500ms/DIV
DC1816B F11
= 120VAC
IN
IC V
IN
20V/DIV
V
OUT
20V/DIV
V
SW
200V/DIV
Figure 10. V
IC V
IN
20V/DIV
I
OUT
5A/DIV
V
SW
200V/DIV
Figure 12. V
500ms/DIV
DC1816B F10
= 277VAC
IN
500ms/DIV
DC1816B F12
= 277VAC
IN
dc1816bfc

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Lt3799-1