Linear Technology DC1816B Demo Manual page 3

Quick start proceDure
100
90
80
70
60
50
90 110 130 150 170 190 210 230 250 270 290 305
V (AC-RMS)
IN
Figure 2. Efficiency vs Input Voltage
Input Line Voltage and Current
V AC
IN
200V/DIV
I AC
IN
1A/DIV
Figure 5. V
Switch Node Voltage
V
SW
100V/DIV
Figure 7. V
4.0
3.5
3.0
2.5
2.0
90 110 130 150 170 190 210 230 250 270 290
DC1816B F02
Figure 3. I
5ms/DIV
DC1816B F05
= 120VAC
IN
5µs/DIV
DC1816B F07
= 120VAC
IN
DEMO MANUAL DC1816B
305
V (AC-RMS)
IN
DC1816B F03
vs Input Voltage
OUT
V AC
IN
200V/DIV
I AC
IN
1A/DIV
Figure 6. V
V
SW
100V/DIV
Figure 8. V
1.00
0.98
0.96
0.94
0.92
0.90
90 110 130 150 170 190 210 230 250 270 290
V (AC-RMS)
IN
Figure 4. Power Factor vs Input Voltage
5ms/DIV
= 277VAC
IN
5µs/DIV
= 277VAC
IN
305
DC1816B F04
DC1816B F06
DC1816B F08
dc1816bfc
3