Linear Technology DC1817B Demo Manual page 3

Quick start proceDure
100
95
90
85
80
75
90 110 130
Figure 2. Efficiency vs Input Voltage
Figure 5. 120VAC (PF = 0.99)
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2A LOAD
1A LOAD
150 170 190 210 230 250 270
V (AC-RMS)
IN
dc1817b F02
1
0.98
0.96
0.94
0.92
0.90
110
90
Figure 4. Power Factor vs Input Voltage
Input Line Voltage and Current
5ms/DIV
DEMO MANUAL DC1817B
25
24
23
22
21
20
0
2A LOAD
130 150 210 230
170 190 250
V (AC-RMS)
IN
I
IN(AC)
(1A/DIV)
V
IN(AC)
(200V/DIV)
0.25 0.5 0.75 1 1.25 1.5
LOAD (A)
Figure 3. V vs Load Current
OUT
270
dc1817b F04
5ms/DIV
Figure 6. 230VAC (PF = 0.97)
120V
IN
240V
IN
1.75 2
dc1817b F03
dc1817bfa
3